Enterprise Architecture

Enterprise Architecture (EA) is a strategic discipline that aligns an organization's business strategy with its information technology (IT) strategy, providing a holistic blueprint that encompasses business processes, data, applications, and technology infrastructure. Functioning as a master plan, EA guides the design and evolution of complex systems, ensuring that software engineering efforts and technology acquisitions are cohesive, efficient, and directly support the organization's long-term objectives. By managing complexity and promoting standardization, it enables businesses to be more agile, reduce costs, and make more informed decisions about their technological landscape.

1. Introduction to Enterprise Architecture
   1. Defining Enterprise Architecture
      1. Core Purpose and Goals
         1. Aligning Business and IT Strategy
         2. Enabling Organizational Agility
         3. Supporting Informed Decision-Making
         4. Reducing Complexity
         5. Optimizing Resource Utilization
      2. The Enterprise Context
         1. Definition of an Enterprise
         2. Types of Enterprises
            1. Public Sector Organizations
            2. Private Corporations
            3. Nonprofit Organizations
            4. Government Agencies
         3. Enterprise Boundaries and Scope
         4. Organizational Complexity Factors
      3. The Architecture Context
         1. Definition of Architecture in Business and IT
         2. Principles of Architectural Thinking
            1. Abstraction and Modeling
            2. Separation of Concerns
            3. Modularity and Reusability
         3. Levels of Abstraction
            1. Conceptual Level
            2. Logical Level
            3. Physical Level
         4. Architecture as a Discipline
   2. Value Proposition of Enterprise Architecture
      1. Strategic Benefits
         1. Business-IT Alignment
         2. Strategic Planning Support
         3. Innovation Enablement
         4. Competitive Advantage
      2. Operational Benefits
         1. Complexity Management
         2. Change Management Facilitation
         3. Process Optimization
         4. Integration Improvement
      3. Financial Benefits
         1. Cost Reduction
         2. Investment Optimization
         3. Risk Mitigation
         4. Return on Investment
      4. Decision-Making Enhancement
         1. Holistic Organizational Views
         2. Scenario Analysis Capabilities
         3. Impact Assessment
         4. Evidence-Based Decisions
   3. Fundamental Concepts
      1. Stakeholders and Concerns
         1. Stakeholder Identification
            1. Business Stakeholders
            2. IT Stakeholders
            3. External Stakeholders
         2. Stakeholder Analysis Techniques
         3. Concern Capture and Management
         4. Conflicting Concern Resolution
      2. Views and Viewpoints
         1. Architecture Views
            1. Purpose and Scope
            2. View Construction
            3. View Validation
         2. Architecture Viewpoints
            1. Viewpoint Definition
            2. Stakeholder-Specific Viewpoints
            3. Standard Viewpoint Libraries
      3. Architecture Domains
         1. Business Architecture Domain
         2. Information Architecture Domain
         3. Application Architecture Domain
         4. Technology Architecture Domain
         5. Cross-Domain Relationships
      4. Architecture States
         1. Baseline Architecture
            1. Current State Assessment
            2. As-Is Documentation
         2. Target Architecture
            1. Future State Vision
            2. To-Be Design
         3. Transition Architectures
            1. Intermediate States
            2. Migration Phases
      5. Gap Analysis
         1. Gap Identification Methods
         2. Gap Prioritization
         3. Remediation Planning
         4. Impact Assessment
   4. Historical Evolution
      1. Early Information Systems Planning
         1. Mainframe Era Approaches
         2. Structured Analysis Methods
         3. Information Engineering
      2. Framework Development Era
         1. Zachman Framework Introduction
         2. TOGAF Development
         3. Government Framework Initiatives
      3. Modern Enterprise Architecture
         1. Business-Centric Approaches
         2. Agile Integration
         3. Digital Transformation Focus
         4. Cloud and Modern Technology Integration