• TOGAF is based on four pillars, called architecture domains:• Business architecture or business process architecture which defines the
business strategy, governance, organization, and key business processes of the organization
• Applications architecture which provides a blueprint for the individual application systems to be deployed, the interactions between the application systems, and their relationships to the core business processes of the organization with the frameworks for services to be exposed as business functions for integration.
• Data architecture which describes the structure of an organization's logical and physical data assets and the associated data management resources
• Technical architecture or technology architecture which describes the hardware, software and network infrastructure needed to support the deployment of core, mission-critical applications
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Without all four pillars evaluated your house is not well architected
Engineering, Operations & Technology | Information Technology APEX
• Define the framework and detailed associated methodologies to be used to develop enterprise architectures
• Define the business principles, business goals, and strategic business drivers of the organization
• Define stakeholders and their concerns and objectives
• Define the key business requirements to be addressed
• Articulate an Architecture Vision for the scope of the architecture effort
• Define the major configurations of application system capabilities necessary to support the business in system agnostic terms for each business model
• The goal is to establish a baseline to facilitate changes in how technology is used to realize business capability in application systems over time as business needs change.
• Describe the business strategy for each business model
• Define the organizational, functional processes, information, and geographic needs of the business environment..
AArchitecture
Vision
BBusiness
Architecture
CInformation
System Architecture
• Define the major configurations of application system capabilities required to realize the information and business architecture specifications in/as production systems.
• Determine how the application and software services required in the target system will be grouped and arrayed.
• Initiate gap analysis between the Baseline and Target Domain Architectures.
DTechnology Architecture
• Evaluate and select among the implementation options identified in the development of the various Target Architectures
• Assess the dependencies, costs, and benefits and generate an implementation and migration strategy.
EOpportunities &
Solutions
• Assess the gaps, overlaps, disjoints, organizational readiness and data conversion constraints
• Sort the various implementation projects into priority order.
• Formulate recommendations for each implementation project.
• Document the strategic roadmaps for change, and the top-level work packages or projects to be undertaken to transition from the current to the target environment.
• Perform appropriate governance functions as the system is being implemented and deployed to ensure conformance with the defined architecture.
FMigration Planning
G Implementation
Governance
HArchitectural
Change Management
Preliminary Framework &
Principles
• Define a process whereby requirements for enterprise architecture are identified, stored, and fed into and out of the relevant ADM phases
Requirements Management
Preliminary Framework &
Principles
• Establish an architecture change management process for the new enterprise architecture baseline that is achieved with completion of Phase G.
• This process will typically provide for the continual monitoring of such things as new developments in technology and changes in the business environment, and for determining whether to formally initiate a new architecture evolution cycle
Engineering, Operations & Technology | Information Technology APEX
Benefit: Architecture Framework Enables Consistent End User Delivery
• Establishing a standard TOGAF Business Architecture not only facilitates IT optimization but also provides a foundation for Integrated Standard End User Delivery
Integrated Standardized
Business Processes aligned to supporting systems, tools, etc.
