Data Engineering

  1. Data Warehousing and Analytics
    1. Data Warehouse Architecture
      1. Three-Tier Architecture
        1. Data Sources Layer
          1. Data Integration Layer
            1. Data Presentation Layer
            2. Staging Area Design
              1. Temporary Data Storage
                1. Data Validation and Cleansing
                2. Integration Layer Components
                  1. Data Transformation Logic
                    1. Business Rule Implementation
                    2. Presentation Layer Organization
                      1. Data Marts
                        1. OLAP Cubes
                          1. Reporting Views
                        2. Online Analytical Processing
                          1. OLAP vs. OLTP Comparison
                            1. Transaction Processing Characteristics
                              1. Analytical Processing Requirements
                                1. Performance Optimization Differences
                                2. Multidimensional Analysis
                                  1. Dimensions and Measures
                                    1. Drill-Down and Roll-Up Operations
                                      1. Slice and Dice Operations
                                        1. Pivot Operations
                                        2. OLAP Cube Design
                                          1. Cube Structure and Hierarchy
                                            1. Aggregation Strategies
                                              1. Cube Processing and Maintenance
                                            2. Dimensional Modeling
                                              1. Facts and Dimensions
                                                1. Fact Table Design
                                                  1. Dimension Table Design
                                                    1. Grain Definition
                                                      1. Additive vs. Non-Additive Facts
                                                      2. Star Schema Design
                                                        1. Central Fact Table
                                                          1. Surrounding Dimension Tables
                                                            1. Query Performance Benefits
                                                              1. Maintenance Considerations
                                                              2. Snowflake Schema Design
                                                                1. Normalized Dimension Tables
                                                                  1. Storage Efficiency
                                                                    1. Query Complexity Trade-offs
                                                                    2. Slowly Changing Dimensions
                                                                      1. Type 1 SCD Implementation
                                                                        1. Type 2 SCD Implementation
                                                                          1. Type 3 SCD Implementation
                                                                            1. SCD Strategy Selection
                                                                          2. Data Mart Development
                                                                            1. Dependent Data Marts
                                                                              1. Enterprise Data Warehouse Integration
                                                                                1. Consistent Dimensional Models
                                                                                2. Independent Data Marts
                                                                                  1. Standalone Development
                                                                                    1. Department-Specific Requirements
                                                                                    2. Data Mart Design Patterns
                                                                                      1. Subject Area Focus
                                                                                        1. User Access Patterns
                                                                                          1. Performance Optimization

                                                                                      Previous

                                                                                      4. Database Systems and Data Storage

                                                                                      Go to top

                                                                                      Next

                                                                                      6. Modern Data Storage Architectures