The ADM: Architecture Development Phases (B, C, D)

Developing baseline and target architectures for business, information systems (data and application), and technology domains.

5 minutes 5 Questions

In TOGAF 10 Foundation, the Architecture Development Method (ADM) includes several phases focusing on different architecture domains. Phases B, C, and D represent the core domain-specific architecture development work. Phase B - Business Architecture: This phase develops the business architecture …

Concepts covered
Phase B: Business Architecture ObjectivesBusiness Architecture TechniquesPhase C: Information Systems Architectures OverviewData ArchitectureApplication ArchitectureGap Analysis in Phases B, C, and DCommon Phase Pattern: Inputs, Steps, OutputsDeveloping Baseline and Target Business ArchitecturePhase D: Technology Architecture ObjectivesDeveloping Baseline and Target Technology Architecture
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TOGAF Foundation - The ADM: Architecture Development Phases (B, C, D) Example Questions

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Question 1

In TOGAF Phase D, which technique ensures that differences between the Baseline and Target Technology Architectures are systematically identified and categorized for migration planning?

Correct Answer: Gap analysis, which maps current-state elements against future-state elements to reveal additions, removals, and modifications

Gap analysis is the correct technique because it systematically compares Baseline Architecture elements against Target Architecture elements using a matrix approach to identify what is new, what is retained, what is modified, and what is eliminated, directly feeding into migration planning.

Stakeholder mapping focuses on identifying and classifying stakeholders and their concerns, not on comparing architectural states. Architecture principles review assesses adherence to guiding principles rather than systematically cataloging differences between architectures. Capability assessment evaluates organizational maturity levels rather than mapping specific architectural element changes.

The key concept tested is the application of gap analysis as a core ADM technique in Phase D (Technology Architecture) for identifying differences between Baseline and Target Architectures.

Question 2

A team is starting Phase D and needs to understand what they should produce. A junior architect asks what the Technology Architecture phase is mainly trying to achieve. Which statement best captures a core objective of Phase D?

Correct Answer: Develop a target Technology Architecture that describes the IT infrastructure needed to support the application and data components

Phase D (Technology Architecture) focuses on developing the technology infrastructure, including hardware, software, networks, and middleware, needed to support the application and data architecture components defined in earlier phases.

Defining business processes and organizational structures for IT operations is wrong because business processes and organizational structures belong to Phase B (Business Architecture). Another option describes application services and logical interactions, which fall under Phase C (Application Architecture). Another option addresses data entities and relationships, which is also part of Phase C (Data Architecture).

Key concept tested: understanding the scope and objective of Phase D within the ADM, specifically that Technology Architecture addresses IT infrastructure to enable higher-level architecture components.

Question 3

In TOGAF Phase B, which of the following is a key step in developing the Business Architecture?

Correct Answer: Selecting relevant architecture viewpoints to address stakeholder concerns

In TOGAF Phase B (Business Architecture), a key step is selecting relevant architecture viewpoints that address stakeholder concerns, ensuring the architecture models developed are meaningful and useful to those who will use them.

Mapping application components to physical deployment pertains to Phase C (Application Architecture) or Phase D (Technology Architecture). Defining technology standards and platform services belongs to Phase D (Technology Architecture). Selecting viewpoints to address infrastructure requirements also relates to Phase D, not Business Architecture.

The key concept tested is understanding the specific activities and steps within Phase B of the ADM, particularly the role of stakeholder-driven viewpoint selection in developing the Business Architecture.

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