Data-Driven Decision Making

  1. The DDDM Framework and Process
    1. Problem Definition and Objective Setting
      1. Identifying Business Challenges
        1. Setting Clear Objectives
          1. Asking the Right Questions
            1. Framing Business Questions
              1. Clarifying Scope and Constraints
                1. Question Prioritization
                2. Formulating Testable Hypotheses
                  1. Hypothesis Development
                    1. Null and Alternative Hypotheses
                      1. Hypothesis Validation Framework
                      2. Translating Business Needs into Data Questions
                        1. Operationalizing Business Goals
                          1. Mapping Objectives to Data Requirements
                            1. Success Criteria Definition
                          2. Data Acquisition and Collection
                            1. Identifying Data Sources
                              1. Internal Data Sources
                                1. Transactional Data
                                  1. Operational Data
                                    1. Customer Data
                                      1. Financial Data
                                        1. Human Resources Data
                                        2. External Data Sources
                                          1. Public Datasets
                                            1. Market Research Data
                                              1. Industry Reports
                                                1. Government Data
                                                2. Third-Party Data Providers
                                                  1. Commercial Data Vendors
                                                    1. Data Marketplaces
                                                  2. Data Collection Methods
                                                    1. Surveys and Forms
                                                      1. Survey Design Principles
                                                        1. Sampling Methods
                                                          1. Response Rate Optimization
                                                          2. Web Scraping
                                                            1. Technical Implementation
                                                            2. APIs
                                                              1. RESTful APIs
                                                                1. Data Integration via APIs
                                                                  1. API Rate Limiting
                                                                  2. Sensor Data and IoT
                                                                    1. Types of Sensors
                                                                      1. Data Streaming
                                                                        1. Real-Time Data Collection
                                                                        2. Transactional Systems
                                                                          1. Point-of-Sale Systems
                                                                            1. Enterprise Resource Planning Systems
                                                                              1. Customer Relationship Management Systems
                                                                            2. Data Collection Challenges
                                                                              1. Data Accessibility
                                                                                1. Data Quality at Source
                                                                                  1. Data Volume and Velocity
                                                                                    1. Cost Considerations
                                                                                  2. Data Management and Preparation
                                                                                    1. Data Storage Solutions
                                                                                      1. Relational Databases
                                                                                        1. NoSQL Databases
                                                                                          1. Data Lakes
                                                                                            1. Data Warehouses
                                                                                              1. Data Marts
                                                                                                1. Cloud Storage Options
                                                                                                2. Data Quality Assessment
                                                                                                  1. Data Profiling
                                                                                                    1. Quality Dimensions
                                                                                                      1. Completeness
                                                                                                        1. Accuracy
                                                                                                          1. Consistency
                                                                                                            1. Timeliness
                                                                                                              1. Validity
                                                                                                            2. Data Cleaning and Preprocessing
                                                                                                              1. Missing Data Handling
                                                                                                                1. Imputation Techniques
                                                                                                                  1. Deletion Methods
                                                                                                                    1. Missing Data Patterns
                                                                                                                    2. Outlier Detection and Treatment
                                                                                                                      1. Statistical Methods
                                                                                                                        1. Machine Learning Approaches
                                                                                                                          1. Domain-Specific Rules
                                                                                                                          2. Data Standardization
                                                                                                                            1. Format Standardization
                                                                                                                              1. Unit Conversion
                                                                                                                                1. Categorical Data Encoding
                                                                                                                                2. Duplicate Removal
                                                                                                                                  1. Exact Duplicates
                                                                                                                                    1. Fuzzy Matching
                                                                                                                                      1. Record Linkage
                                                                                                                                    2. Data Transformation
                                                                                                                                      1. Normalization
                                                                                                                                        1. Aggregation
                                                                                                                                          1. Feature Engineering
                                                                                                                                            1. Creating New Features
                                                                                                                                              1. Feature Selection
                                                                                                                                                1. Dimensionality Reduction
                                                                                                                                                2. Data Type Conversion
                                                                                                                                                3. Data Integration
                                                                                                                                                  1. Data Merging Strategies
                                                                                                                                                    1. Schema Matching
                                                                                                                                                      1. Data Lineage Tracking
                                                                                                                                                        1. Conflict Resolution
                                                                                                                                                      2. Exploratory Data Analysis
                                                                                                                                                        1. EDA Objectives and Approach
                                                                                                                                                          1. Descriptive Statistics
                                                                                                                                                            1. Measures of Central Tendency
                                                                                                                                                              1. Mean
                                                                                                                                                                1. Median
                                                                                                                                                                  1. Mode
                                                                                                                                                                  2. Measures of Dispersion
                                                                                                                                                                    1. Variance
                                                                                                                                                                      1. Standard Deviation
                                                                                                                                                                        1. Range
                                                                                                                                                                          1. Interquartile Range
                                                                                                                                                                          2. Distribution Shape
                                                                                                                                                                            1. Skewness
                                                                                                                                                                              1. Kurtosis
                                                                                                                                                                            2. Data Distribution Analysis
                                                                                                                                                                              1. Frequency Distributions
                                                                                                                                                                                1. Probability Distributions
                                                                                                                                                                                  1. Distribution Testing
                                                                                                                                                                                  2. Relationship Analysis
                                                                                                                                                                                    1. Correlation Analysis
                                                                                                                                                                                      1. Pearson Correlation
                                                                                                                                                                                        1. Spearman Correlation
                                                                                                                                                                                          1. Kendall's Tau
                                                                                                                                                                                          2. Cross-Tabulation
                                                                                                                                                                                            1. Contingency Tables
                                                                                                                                                                                            2. Pattern Recognition
                                                                                                                                                                                              1. Trend Analysis
                                                                                                                                                                                                1. Seasonality Detection
                                                                                                                                                                                                  1. Anomaly Identification
                                                                                                                                                                                                  2. Data Visualization for EDA
                                                                                                                                                                                                    1. Univariate Visualizations
                                                                                                                                                                                                      1. Histograms
                                                                                                                                                                                                        1. Box Plots
                                                                                                                                                                                                          1. Density Plots
                                                                                                                                                                                                          2. Bivariate Visualizations
                                                                                                                                                                                                            1. Scatter Plots
                                                                                                                                                                                                              1. Line Charts
                                                                                                                                                                                                                1. Heat Maps
                                                                                                                                                                                                                2. Multivariate Visualizations
                                                                                                                                                                                                                  1. Pair Plots
                                                                                                                                                                                                                    1. Parallel Coordinates
                                                                                                                                                                                                                3. Data Analysis and Modeling
                                                                                                                                                                                                                  1. Analytical Approach Selection
                                                                                                                                                                                                                    1. Descriptive Analytics
                                                                                                                                                                                                                      1. Diagnostic Analytics
                                                                                                                                                                                                                        1. Predictive Analytics
                                                                                                                                                                                                                          1. Prescriptive Analytics
                                                                                                                                                                                                                          2. Statistical Analysis Methods
                                                                                                                                                                                                                            1. Hypothesis Testing
                                                                                                                                                                                                                              1. t-Tests
                                                                                                                                                                                                                                1. Chi-Square Tests
                                                                                                                                                                                                                                  1. ANOVA
                                                                                                                                                                                                                                    1. Non-Parametric Tests
                                                                                                                                                                                                                                    2. Regression Analysis
                                                                                                                                                                                                                                      1. Simple Linear Regression
                                                                                                                                                                                                                                        1. Multiple Regression
                                                                                                                                                                                                                                          1. Logistic Regression
                                                                                                                                                                                                                                            1. Polynomial Regression
                                                                                                                                                                                                                                            2. Time Series Analysis
                                                                                                                                                                                                                                              1. Trend Analysis
                                                                                                                                                                                                                                                1. Seasonal Decomposition
                                                                                                                                                                                                                                                  1. Forecasting Models
                                                                                                                                                                                                                                                2. Machine Learning Applications
                                                                                                                                                                                                                                                  1. Supervised Learning
                                                                                                                                                                                                                                                    1. Classification Problems
                                                                                                                                                                                                                                                      1. Regression Problems
                                                                                                                                                                                                                                                      2. Unsupervised Learning
                                                                                                                                                                                                                                                        1. Clustering Analysis
                                                                                                                                                                                                                                                          1. Association Rules
                                                                                                                                                                                                                                                          2. Model Selection and Evaluation
                                                                                                                                                                                                                                                            1. Cross-Validation
                                                                                                                                                                                                                                                              1. Performance Metrics
                                                                                                                                                                                                                                                                1. Model Comparison
                                                                                                                                                                                                                                                              2. Advanced Analytics
                                                                                                                                                                                                                                                                1. Predictive Modeling
                                                                                                                                                                                                                                                                  1. Optimization Techniques
                                                                                                                                                                                                                                                                    1. Simulation Methods
                                                                                                                                                                                                                                                                      1. Scenario Analysis
                                                                                                                                                                                                                                                                    2. Interpretation and Insight Generation
                                                                                                                                                                                                                                                                      1. Results Interpretation
                                                                                                                                                                                                                                                                        1. Statistical Significance
                                                                                                                                                                                                                                                                          1. Practical Significance
                                                                                                                                                                                                                                                                            1. Effect Size Analysis
                                                                                                                                                                                                                                                                            2. Business Context Integration
                                                                                                                                                                                                                                                                              1. Relating Findings to Objectives
                                                                                                                                                                                                                                                                                1. Industry Benchmarking
                                                                                                                                                                                                                                                                                  1. Competitive Analysis
                                                                                                                                                                                                                                                                                  2. Causal Analysis
                                                                                                                                                                                                                                                                                    1. Correlation vs. Causation
                                                                                                                                                                                                                                                                                      1. Causal Inference Methods
                                                                                                                                                                                                                                                                                        1. Confounding Variables
                                                                                                                                                                                                                                                                                        2. Uncertainty Quantification
                                                                                                                                                                                                                                                                                          1. Confidence Intervals
                                                                                                                                                                                                                                                                                            1. Prediction Intervals
                                                                                                                                                                                                                                                                                              1. Sensitivity Analysis
                                                                                                                                                                                                                                                                                              2. Insight Validation
                                                                                                                                                                                                                                                                                                1. Reproducibility Testing
                                                                                                                                                                                                                                                                                                  1. Peer Review Process
                                                                                                                                                                                                                                                                                                    1. Stakeholder Validation
                                                                                                                                                                                                                                                                                                  2. Communication and Visualization
                                                                                                                                                                                                                                                                                                    1. Data Storytelling Principles
                                                                                                                                                                                                                                                                                                      1. Narrative Structure
                                                                                                                                                                                                                                                                                                        1. Audience Analysis
                                                                                                                                                                                                                                                                                                          1. Key Message Identification
                                                                                                                                                                                                                                                                                                          2. Visualization Design
                                                                                                                                                                                                                                                                                                            1. Chart Selection Guidelines
                                                                                                                                                                                                                                                                                                              1. Visual Hierarchy
                                                                                                                                                                                                                                                                                                                1. Color Theory
                                                                                                                                                                                                                                                                                                                  1. Accessibility Considerations
                                                                                                                                                                                                                                                                                                                  2. Dashboard Development
                                                                                                                                                                                                                                                                                                                    1. Dashboard Design Principles
                                                                                                                                                                                                                                                                                                                      1. Interactive Elements
                                                                                                                                                                                                                                                                                                                        1. Real-Time Updates
                                                                                                                                                                                                                                                                                                                          1. Mobile Responsiveness
                                                                                                                                                                                                                                                                                                                          2. Presentation Techniques
                                                                                                                                                                                                                                                                                                                            1. Executive Summaries
                                                                                                                                                                                                                                                                                                                              1. Technical Reports
                                                                                                                                                                                                                                                                                                                                1. Stakeholder Presentations
                                                                                                                                                                                                                                                                                                                                  1. Q&A Handling
                                                                                                                                                                                                                                                                                                                                2. Implementation and Decision Making
                                                                                                                                                                                                                                                                                                                                  1. Decision Framework Application
                                                                                                                                                                                                                                                                                                                                    1. Multi-Criteria Decision Analysis
                                                                                                                                                                                                                                                                                                                                      1. Risk Assessment
                                                                                                                                                                                                                                                                                                                                        1. Cost-Benefit Analysis
                                                                                                                                                                                                                                                                                                                                        2. Solution Deployment
                                                                                                                                                                                                                                                                                                                                          1. Model Implementation
                                                                                                                                                                                                                                                                                                                                            1. System Integration
                                                                                                                                                                                                                                                                                                                                              1. User Training
                                                                                                                                                                                                                                                                                                                                              2. Change Management
                                                                                                                                                                                                                                                                                                                                                1. Stakeholder Buy-In
                                                                                                                                                                                                                                                                                                                                                  1. Process Redesign
                                                                                                                                                                                                                                                                                                                                                    1. Communication Strategy
                                                                                                                                                                                                                                                                                                                                                  2. Monitoring and Continuous Improvement
                                                                                                                                                                                                                                                                                                                                                    1. Performance Tracking
                                                                                                                                                                                                                                                                                                                                                      1. KPI Monitoring
                                                                                                                                                                                                                                                                                                                                                        1. Outcome Measurement
                                                                                                                                                                                                                                                                                                                                                          1. Success Metrics
                                                                                                                                                                                                                                                                                                                                                          2. Model Maintenance
                                                                                                                                                                                                                                                                                                                                                            1. Model Drift Detection
                                                                                                                                                                                                                                                                                                                                                              1. Retraining Schedules
                                                                                                                                                                                                                                                                                                                                                                1. Performance Degradation
                                                                                                                                                                                                                                                                                                                                                                2. Feedback Integration
                                                                                                                                                                                                                                                                                                                                                                  1. User Feedback Collection
                                                                                                                                                                                                                                                                                                                                                                    1. Process Refinement
                                                                                                                                                                                                                                                                                                                                                                      1. Lesson Learned Documentation
                                                                                                                                                                                                                                                                                                                                                                      2. Experimentation Framework
                                                                                                                                                                                                                                                                                                                                                                        1. A/B Testing Design
                                                                                                                                                                                                                                                                                                                                                                          1. Experimental Controls
                                                                                                                                                                                                                                                                                                                                                                            1. Statistical Power Analysis
                                                                                                                                                                                                                                                                                                                                                                              1. Results Interpretation

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                                                                                                                                                                                                                                                                                                                                                                          1. Introduction to Data-Driven Decision Making

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                                                                                                                                                                                                                                                                                                                                                                          3. Statistical and Analytical Foundations