The Open Group OGEA-103 - TOGAF Enterprise Architecture Combined Part 1 and Part 2 Exam

The illustration shows an architecture development cycle based on the TOGAF ADM (Architecture Development Method), which is a method for developing and managing an enterprise architecture1.

The ADM consists of nine phases, each with a specific purpose and output. The phases are1:

Preliminary Phase: To prepare and initiate the architecture development cycle, including defining the architecture framework, principles, and governance.

Phase A: Architecture Vision: To define the scope, vision, and stakeholders of the architecture initiative, and to obtain approval to proceed.

Phase B: Business Architecture: To describe the baseline and target business architecture, and to identify the gaps between them.

Phase C: Information Systems Architectures: To describe the baseline and target data and application architectures, and to identify the gaps between them.

Phase D: Technology Architecture: To describe the baseline and target technology architecture, and to identify the gaps between them.

Phase E: Opportunities and Solutions: To identify and evaluate the opportunities and solutions for implementing the target architecture, and to define the work packages and transition architectures.

Phase F: Migration Planning: To finalize the implementation and migration plan, and to ensure alignment with the enterprise portfolio and project management.

Phase G: Implementation Governance: To provide architecture oversight and guidance for the implementation projects, and to manage any architecture change requests.

Phase H: Architecture Change Management: To monitor the changes in the business and technology environment, and to assess the impact and performance of the architecture.

In addition to these phases, there is a central process called Requirements Management, which is labeled as item 1 in the illustration. This process operates throughout the ADM cycle, and its purpose is to manage the architecture requirements throughout the architecture development, ensuring that they are aligned with the business requirements and the stakeholder concerns2.

Therefore, the description that matches the phase of the ADM labeled as item 1 is C. Operates the process of managing architecture requirements.

1: The TOGAF Standard, Version 9.2, Chapter 5: Architecture Development Method (ADM)

2: The TOGAF Standard, Version 9.2, Chapter 17: Requirements Management

According to the TOGAF standard, the objectives of each ADM phase are as follows1:

•Phase E: Opportunities and Solutions

oDetermine whether an incremental approach is required, and if so identify Transition Architectures that will deliver continuous business value

oIdentify and group major work packages within the Architecture Roadmap

oIdentify and group major implementation projects to realize the Architecture Roadmap

oIdentify dependencies between increments and projects

oEstimate cost, benefit, and risk at a high level for each increment and project

oConduct initial prioritization and sequencing of the Architecture Roadmap and projects

•Phase F: Migration Planning

oGenerate the initial complete version of the Architecture Roadmap, based upon the gap analysis and candidate Architecture Roadmap components from Phases B, C, and D

oConfirm the Transition Architectures with relevant stakeholders

oCreate the Implementation and Migration Plan, including Transition Architectures, work packages, projects, and other activities

oConfirm and agree the Architecture Roadmap and Implementation and Migration Plan with relevant stakeholders

•Phase G: Implementation Governance

oFinalize the Architecture Roadmap and the supporting Implementation and Migration Plan

oEnsure conformance with the Target Architecture by implementation projects

oPerform appropriate Architecture Governance functions for the solution and any implementation-driven architecture Change Requests

oEnsure that the architecture lifecycle is maintained

oEnsure that the Architecture Governance Framework is executed

•Phase H: Architecture Change Management

oEnsure that the business value and cost of work packages and Transition Architectures is understood by key stakeholders

oManage risks and issues related to the Architecture Roadmap and Implementation and Migration Plan

oMonitor the implementation projects and Transition Architectures

oManage changes to the architecture baseline

oManage changes to the Architecture Capability

Therefore, the correct matching of the objectives and the phases is:

•1G: Determine whether an incremental approach is required, and if so identify Transition Architectures that will deliver continuous business value

•2E: Generate the initial complete version of the Architecture Roadmap, based upon the gap analysis and candidate Architecture Roadmap components from Phases B, C, and D

•3F: Finalize the Architecture Roadmap and the supporting Implementation and Migration Plan

•4F: Ensure that the business value and cost of work packages and Transition Architectures is understood by key stakeholders

The illustration shows the relationship between the Enterprise Continuum, the Architecture Continuum, and the Solutions Continuum, which are key concepts in the TOGAF framework. The Enterprise Continuum is a view of the Architecture Repository that shows how generic foundation architectures can be leveraged and specialized to support the requirements of an individual organization. The Architecture Continuum specifies a structured classification for architectural artifacts, such as models, patterns, and descriptions, that can be reused and adapted across different domains and levels of abstraction. The Solutions Continuum identifies implemented solutions that support various stages of business and IT capability evolution, such as common systems, industry solutions, and organization-specific solutions. The illustration also shows how the architecture context and requirements are influenced by external factors, such as business drivers, stakeholders, and standards, and how they shape the generic and specific architectures and solutions. The illustration also shows how the deployed solutions become part of the architecture context for future iterations of the architecture development cycle. References:

•TOGAF Standard, 10th Edition, Part II: Architecture Development Method, Chapter 6: Architecture Repository, Section 6.2 Enterprise Continuum.

•TOGAF Standard, 10th Edition, Part IV: Architecture Content Framework, Chapter 35: Enterprise Continuum and Tools, Section 35.1 Introduction.

Phase B of the ADM cycle is the Business Architecture phase. It describes the development of a Business Architecture to support an agreed Architecture Vision. The objectives of this phase are to describe the baseline and target Business Architecture, identify candidate Architecture Roadmap components based on gaps between the baseline and target, and determine whether an incremental approach is required. Reference: The TOGAF® Standard | The Open Group Website, Section 3.2.2 Phase B: Business Architecture.