# Enterprise Reference Architecture ## Document Information | Document Details | | |-----------------|--------------------------------------| | **Title** | Enterprise Reference Architecture | | **Organization**| [Organization Name] | | **Date** | [Creation Date] | | **Version** | [Version Number] | | **Prepared By** | [Author Name and Role] | | **Approved By** | [Approver Name and Role] | | **Status** | [Draft/Review/Approved] | ## Executive Summary [Provide a concise summary of the enterprise reference architecture, highlighting its purpose, key architectural decisions, and business value. This section should be brief (2-3 paragraphs) and focused on communicating the essence of the architecture to executive stakeholders.] ## 1. Introduction ### 1.1 Purpose and Scope [Define the purpose of the enterprise reference architecture and its scope, including the business domains, technology domains, and organizational units covered.] ### 1.2 Architecture Vision [Articulate the vision for the enterprise architecture, including how it supports business strategy and objectives.] ### 1.3 Architecture Principles [List and describe the core architecture principles that guide architectural decisions across the enterprise.] | Principle | Description | Rationale | Implications | |-----------|-------------|-----------|-------------| | [Principle] | [Description] | [Rationale] | [Implications] | | [Principle] | [Description] | [Rationale] | [Implications] | | [Principle] | [Description] | [Rationale] | [Implications] | | [Principle] | [Description] | [Rationale] | [Implications] | | [Principle] | [Description] | [Rationale] | [Implications] | ### 1.4 Reference Architecture Framework [Describe the framework used to organize and present the enterprise reference architecture, including the architectural viewpoints and domains covered.] ## 2. Business Architecture ### 2.1 Business Capability Model [Present the business capability model that defines the organization's core capabilities and their relationships.] [Include a visual representation of the business capability model.] ### 2.2 Business Process Architecture [Describe the high-level business process architecture, including process domains, key processes, and their relationships.] [Include a visual representation of the business process architecture.] ### 2.3 Organization Architecture [Describe the organizational structure and how it relates to business capabilities and processes.] ### 2.4 Business-IT Alignment [Explain how the enterprise architecture aligns with and supports business strategy, objectives, and capabilities.] ## 3. Information Architecture ### 3.1 Information Model [Present the enterprise information model, including key entities, their attributes, and relationships.] [Include a visual representation of the enterprise information model.] ### 3.2 Data Architecture [Describe the data architecture, including data domains, data stores, data flows, and data governance.] #### 3.2.1 Data Domains [Define the key data domains and their characteristics.] | Data Domain | Description | Master Data | Ownership | Classification | |-------------|-------------|------------|-----------|---------------| | [Domain] | [Description] | [Yes/No] | [Owner] | [Classification] | | [Domain] | [Description] | [Yes/No] | [Owner] | [Classification] | | [Domain] | [Description] | [Yes/No] | [Owner] | [Classification] | #### 3.2.2 Data Stores [Identify the key data stores and their characteristics.] | Data Store | Type | Purpose | Data Domains | Technology | |------------|------|---------|-------------|------------| | [Store] | [Type] | [Purpose] | [Domains] | [Technology] | | [Store] | [Type] | [Purpose] | [Domains] | [Technology] | | [Store] | [Type] | [Purpose] | [Domains] | [Technology] | #### 3.2.3 Data Flows [Describe the key data flows between systems and data stores.] [Include a visual representation of the enterprise data flow.] ### 3.3 Master Data Management [Describe the approach to master data management, including governance, processes, and tools.] ### 3.4 Data Governance [Define the data governance framework, including roles, responsibilities, policies, and processes.] ## 4. Application Architecture ### 4.1 Application Portfolio [Present the enterprise application portfolio, categorized by business capability or domain.] | Application | Description | Business Capability | Category | Lifecycle Status | |-------------|-------------|---------------------|----------|------------------| | [Application] | [Description] | [Capability] | [Category] | [Status] | | [Application] | [Description] | [Capability] | [Category] | [Status] | | [Application] | [Description] | [Capability] | [Category] | [Status] | ### 4.2 Application Integration Architecture [Describe the application integration architecture, including integration patterns, technologies, and standards.] [Include a visual representation of the application integration architecture.] #### 4.2.1 Integration Patterns [Define the standard integration patterns used across the enterprise.] | Pattern | Description | Use Cases | Technologies | |---------|-------------|-----------|-------------| | [Pattern] | [Description] | [Use Cases] | [Technologies] | | [Pattern] | [Description] | [Use Cases] | [Technologies] | | [Pattern] | [Description] | [Use Cases] | [Technologies] | #### 4.2.2 API Architecture [Describe the API architecture, including API types, management, and governance.] ### 4.3 Application Patterns [Define standard application patterns used across the enterprise.] #### 4.3.1 Frontend Patterns [Describe standard patterns for frontend applications.] | Pattern | Description | Use Cases | Technologies | |---------|-------------|-----------|-------------| | [Pattern] | [Description] | [Use Cases] | [Technologies] | | [Pattern] | [Description] | [Use Cases] | [Technologies] | | [Pattern] | [Description] | [Use Cases] | [Technologies] | #### 4.3.2 Backend Patterns [Describe standard patterns for backend applications.] | Pattern | Description | Use Cases | Technologies | |---------|-------------|-----------|-------------| | [Pattern] | [Description] | [Use Cases] | [Technologies] | | [Pattern] | [Description] | [Use Cases] | [Technologies] | | [Pattern] | [Description] | [Use Cases] | [Technologies] | #### 4.3.3 Data Access Patterns [Describe standard patterns for data access.] | Pattern | Description | Use Cases | Technologies | |---------|-------------|-----------|-------------| | [Pattern] | [Description] | [Use Cases] | [Technologies] | | [Pattern] | [Description] | [Use Cases] | [Technologies] | | [Pattern] | [Description] | [Use Cases] | [Technologies] | ### 4.4 Application Lifecycle Management [Describe the approach to application lifecycle management, including development, testing, deployment, and maintenance.] ## 5. Technology Architecture ### 5.1 Technology Standards [Define technology standards for key technology areas.] | Technology Area | Standard | Status | Exceptions | |----------------|----------|--------|------------| | [Area] | [Standard] | [Mandatory/Preferred/Acceptable] | [Exceptions] | | [Area] | [Standard] | [Mandatory/Preferred/Acceptable] | [Exceptions] | | [Area] | [Standard] | [Mandatory/Preferred/Acceptable] | [Exceptions] | ### 5.2 Infrastructure Architecture [Describe the infrastructure architecture, including compute, storage, network, and cloud services.] #### 5.2.1 Compute Architecture [Describe the compute architecture, including servers, virtualization, and containers.] #### 5.2.2 Storage Architecture [Describe the storage architecture, including storage types, tiers, and management.] #### 5.2.3 Network Architecture [Describe the network architecture, including network segments, connectivity, and security zones.] [Include a visual representation of the network architecture.] #### 5.2.4 Cloud Architecture [Describe the cloud architecture, including cloud services, deployment models, and hybrid cloud approach.] ### 5.3 Platform Architecture [Describe the platform architecture, including middleware, databases, and common services.] #### 5.3.1 Middleware Architecture [Describe the middleware architecture, including messaging, integration, and API platforms.] #### 5.3.2 Database Architecture [Describe the database architecture, including database types, platforms, and management.] #### 5.3.3 Common Services [Describe common services used across the enterprise, such as identity management, logging, and monitoring.] ### 5.4 DevOps Architecture [Describe the DevOps architecture, including CI/CD pipelines, automation, and tooling.] ## 6. Security Architecture ### 6.1 Security Principles and Policies [Define security principles and policies that guide security architecture decisions.] ### 6.2 Identity and Access Management [Describe the identity and access management architecture, including authentication, authorization, and directory services.] ### 6.3 Network Security [Describe the network security architecture, including firewalls, segmentation, and intrusion detection/prevention.] ### 6.4 Data Security [Describe the data security architecture, including encryption, data loss prevention, and data privacy.] ### 6.5 Application Security [Describe the application security architecture, including secure development practices, application security testing, and runtime protection.] ### 6.6 Security Monitoring and Operations [Describe the security monitoring and operations architecture, including security information and event management, incident response, and security operations center.] ## 7. Cross-Cutting Concerns ### 7.1 High Availability and Disaster Recovery [Describe the architecture for high availability and disaster recovery, including resilience patterns, backup and recovery, and business continuity.] ### 7.2 Performance and Scalability [Describe the architecture for performance and scalability, including performance patterns, caching, and scaling approaches.] ### 7.3 Monitoring and Observability [Describe the architecture for monitoring and observability, including metrics, logging, tracing, and alerting.] ### 7.4 Governance and Compliance [Describe the architecture for governance and compliance, including regulatory requirements, compliance monitoring, and reporting.] ## 8. Reference Implementation Models ### 8.1 Frontend Reference Implementation [Describe the reference implementation for frontend applications, including technologies, patterns, and best practices.] [Include a visual representation of the frontend reference implementation.] ### 8.2 Backend Reference Implementation [Describe the reference implementation for backend applications, including technologies, patterns, and best practices.] [Include a visual representation of the backend reference implementation.] ### 8.3 Integration Reference Implementation [Describe the reference implementation for integration, including technologies, patterns, and best practices.] [Include a visual representation of the integration reference implementation.] ### 8.4 Data Reference Implementation [Describe the reference implementation for data management, including technologies, patterns, and best practices.] [Include a visual representation of the data reference implementation.] ## 9. Architecture Governance ### 9.1 Governance Framework [Define the architecture governance framework, including roles, responsibilities, processes, and tools.] ### 9.2 Architecture Review Process [Describe the architecture review process, including review criteria, review boards, and decision-making.] ### 9.3 Architecture Compliance [Define the approach to architecture compliance, including compliance assessment, exceptions, and enforcement.] ### 9.4 Architecture Change Management [Describe the process for managing changes to the enterprise reference architecture.] ## 10. Implementation Guidance ### 10.1 Architecture Adoption Approach [Define the approach for adopting the enterprise reference architecture, including phasing, prioritization, and transition planning.] ### 10.2 Architecture Patterns Catalog [Provide guidance on using the architecture patterns defined in the reference architecture.] ### 10.3 Technology Selection Guidance [Provide guidance on selecting technologies that align with the reference architecture.] ### 10.4 Architecture Decision Records [Document key architecture decisions that shape the enterprise reference architecture.] | Decision ID | Title | Status | Context | Decision | Consequences | |-------------|-------|--------|---------|----------|-------------| | [ID] | [Title] | [Status] | [Context] | [Decision] | [Consequences] | | [ID] | [Title] | [Status] | [Context] | [Decision] | [Consequences] | | [ID] | [Title] | [Status] | [Context] | [Decision] | [Consequences] | ## 11. Roadmap and Evolution ### 11.1 Architecture Roadmap [Define the roadmap for evolving the enterprise architecture, aligned with business strategy and technology trends.] [Include a visual representation of the architecture roadmap.] ### 11.2 Technology Lifecycle Management [Describe the approach to managing technology lifecycles, including technology refresh, obsolescence management, and innovation adoption.] ### 11.3 Architecture Capability Development [Define the approach to developing architecture capabilities within the organization, including skills, methods, and tools.] ## 12. Conclusion [Summarize the key elements of the enterprise reference architecture and the path forward. Emphasize the business value of implementing the architecture and the importance of stakeholder alignment and commitment.] ## Appendices ### Appendix A: Glossary [Define key terms and acronyms used in the document.] ### Appendix B: Architecture Viewpoints and Models [Include detailed architecture viewpoints and models that support the enterprise reference architecture.] ### Appendix C: Technology Standards Catalog [Provide a detailed catalog of technology standards referenced in the architecture.] ### Appendix D: Architecture Principles Catalog [Provide a detailed catalog of architecture principles referenced in the architecture.] ### Appendix E: References [List references to standards, frameworks, and other documents used in developing the architecture.] ```