Free The Open Group OGEA-101 Practice Exam with Questions & Answers | Set: 4

Strategy Portfolio Project Solution Delivery are the four purposes that typically frame the planning horizon, depth and breadth of an Architecture Project, and the contents of the EA Repository. They correspond to different levels of abstraction and granularity in the architecture development process. Reference: The TOGAF® Standard, Version 9.2 - The Open Group, Section 2.4 Architecture Repository.

This aligns with the TOGAF Architecture Repository model where:

A (Architecture Requirements Repository) contains requirements that drive architecture work.

B (Solutions Repository) stores the building blocks or solutions that support the architecture.

C (Architecture Landscape) represents the architecture assets that depict the current, transition, and target architecture states across the enterprise

When scoping an architecture in TOGAF, three key axes (dimensions) are used to frame the extent of the architecture work. The first is time period (how far into the future or over what timeframe to plan). The second is depth—how detailed or granular the architecture models will be (e.g., high level, mid level, very detailed). The third is breadth, which refers to which parts (domains, business units, functions) of the enterprise will be included, and which architecture domains (business, data, application, technology) will be in scope. This triple‐dimension model helps architects, stakeholders, and governance bodies understand how wide, deep, and forwardlooking the architecture effort will be. Thus “breadth, architecture domains” is the correct third dimension.

This description matches Phase B: Business Architecture. In TOGAF, Phase B is the phase in which the architect develops the target Business Architecture and identifies the gaps between the baseline and target states. The phase is not limited to producing models only; it also ensures that the resulting domain architecture is reviewed and approved by stakeholders and that the implications of the gaps are understood. The wording in the question is characteristic of the domain architecture phases, and among the options provided, Phase B is the only domain architecture phase listed.

Phase A is concerned with developing the Architecture Vision, scope, constraints, and stakeholder consensus at a high level. The Preliminary Phase establishes the architecture capability and governance framework. Phase E is focused on Opportunities and Solutions, where solution building blocks, work packages, and transition approaches are identified. None of those primarily describe development of a domain architecture with stakeholder approval and identified gaps.

Because the question refers to a domain architecture, stakeholder approval, and a defined set of gaps to be addressed, the best answer is Phase B. It represents the ADM phase where the Business Architecture is formally developed and agreed.

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The Preliminary Phase is the preparatory phase of the Architecture Development Method (ADM) cycle, which sets the context and direction for the architecture work. One of the objectives of this phase is to select and implement tools to support the Architecture Capability, which is the ability of an organization to perform enterprise architecture effectively and efficiently. Tools can include software applications, methods, techniques, standards, and frameworks that assist the architecture development and governance processes. The selection and implementation of tools should be based on the requirements and constraints of the organization, and the alignment with the Architecture Principles and the Architecture Vision3 References: 3: The TOGAF Standard, Version 9.2, Part II: Architecture Development Method (ADM), Chapter 6: Preliminary Phase : The TOGAF Standard, Version 9.2, Part VI: Architecture Capability Framework, Chapter 45: Establishing and Maintaining an Enterprise Architecture Capability : The TOGAF Standard, Version 9.2, Part VI: Architecture Capability Framework, Chapter 46: Tools for Architecture Development

Comprehensive and Detailed Explanation

When defining the scope of an architecture, TOGAF identifies four dimensions that need to be considered:

Breadth – This dimension addresses the extent of the enterprise that will be impacted by the architecture. It answers the question: How much of the enterprise is covered? For example, does the scope include the entire enterprise, a business unit, a division, or just a single organizational function?

Depth – This refers to the level of detail to be covered. For instance, will the architecture describe high-level capabilities, or will it go into detailed system design?

Time Period – This defines the planning horizon of the architecture. It could be short-term (tactical), medium-term, or long-term (strategic).

Architecture Domains – This refers to which domains are covered: Business, Data, Application, and Technology. The scope may include all or just a subset of these domains.

Project Scope (sometimes discussed separately) – Focuses on which specific programs, portfolios, or projects will be impacted.

Among these, the dimension that specifically relates to the extent of the enterprise is Breadth.

Why the other options are incorrect

A. Architecture Domains: Refers to the domains covered (Business, Data, Application, Technology), not the extent of the enterprise.

B. Depth: Refers to the level of detail, not the enterprise extent.

C. Project: Refers to the program or initiative focus, not enterprise coverage.

References

The Open Group, TOGAF® Standard, Version 9.2, Part II: ADM — Preliminary Phase (scope considerations).

The Open Group, TOGAF® 9 Certified Study Guide — discussion of the dimensions of architecture scope (Breadth, Depth, Time Period, Architecture Domains).

Architecture partitioning is not the same as architecture levels (so 1 is incorrect).

It allows different teams of architects to work on different parts of the architecture in parallel (2 is correct).

TOGAF does not prescribe a fixed partitioning model; it provides guidance (so 3 is incorrect).

Partitioning is used to simplify management of Enterprise Architecture in large or complex organizations (4 is correct).

An EA Capability is the ability of an organization to perform enterprise architecture effectively and efficiently. It involves establishing and maintaining the appropriate organization structures, roles, responsibilities, skills, processes, tools, and governance mechanisms to support the development and use of enterprise architecture. An EA Capability enables the organization to align its business and IT strategies, deliver value from its investments, manage change and complexity, and improve its performance and agility12 References: 1: The TOGAF Standard, Version 9.2, Part VI: Architecture Capability Framework, Chapter 44: Introduction 2: The TOGAF Standard, Version 9.2, Part VI: Architecture Capability Framework, Chapter 45: Establishing and Maintaining an Enterprise Architecture Capability