The Open Group OGEA-101 - TOGAF Enterprise Architecture Part 1 Exam (English)

The TOGAF standard covers the development of four architecture domains: Business, Data, Technology and Application. These domains represent different aspects of an enterprise’s architecture and provide a consistent way of describing, analyzing, and designing them. Reference: The TOGAF® Standard | The Open Group Website, Section 2.2 Architecture Development Method (ADM).

Based on the web search results, architecture partitioning is a technique that divides the Enterprise Architecture into smaller and manageable segments or groups, based on various classification criteria, such as subject matter, time, maturity, volatility, etc.12 Architecture partitioning is used to simplify the development and management of the Enterprise Architecture, by reducing complexity, improving governance, enhancing reusability, and increasing alignment and agility12. Therefore, the statement that partitions are used to simplify the management of the Enterprise Architecture is correct.

The other statements are incorrect because:

•Partitions are not equivalent to architecture levels. Architecture levels are different layers of abstraction that describe the Enterprise Architecture from different perspectives, such as strategic, segment, and capability3. Partitions are subsets of architectures that are defined within or across the levels, based on specific criteria1.

•Partitions do not necessarily reflect the organization’s structure. The organization’s structure is one possible criterion for partitioning the architecture, but it is not the only one. Other criteria, such as business function, product, service, geography, etc., can also be used to partition the architecture12.

•Partitions are not defined and assigned to agile Enterprise Architecture teams. Agile Enterprise Architecture is an approach that applies agile principles and practices to the architecture work, such as iterative development, frequent feedback, adaptive planning, and continuous delivery4. Partitions are not a specific feature of agile Enterprise Architecture, but a general technique that can be applied to any architecture method or framework, including TOGAF12.

In TOGAF’s treatment of risk within architecture governance and ADM Guidelines & Techniques, risk management is seen as a continuous process including several phases. First one classifies potential risk types. Then one identifies specific risks. After identification comes assessment (evaluating likelihood and impact), monitoring (tracking over time), mitigation (taking actions to reduce the risk), and related response or treatment options to decide what to do with residual risk. That sequence—classification, identification, assessment, monitoring, mitigation, and response—completes the risk management life cycle. It does not stop at evaluation or reporting; it includes active monitoring, control, and reaction to risks over time.

According to the TOGAF Standard, Version 9.2, the ADM phases and their objectives are as follows1:

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.

Requirements Management: To manage the architecture requirements throughout the ADM cycle, and to ensure alignment with the business requirements.

Based on the above definitions, we can match each objective with the corresponding phase as follows:

Objective 1: Ensure that the business value and cost of work packages and transition architectures is understood by key stakeholders. This objective is achieved in Phase H: Architecture Change Management, where the value realization and cost-benefit analysis of the architecture are performed2.

Objective 2: Ensure conformance with the Target Architecture by implementation projects. This objective is achieved in Phase F: Migration Planning, where the conformance requirements and criteria for the implementation projects are defined3.

Objective 3: Ensure that the architecture development cycle is maintained. This objective is achieved in Phase F: Migration Planning, where the architecture roadmap and iteration cycle are maintained3.

Objective 4: Ensure that the Architecture Governance Framework is executed. This objective is achieved in Phase G: Implementation Governance, where the architecture governance processes and procedures are applied to the implementation projects4.

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

2: The TOGAF Standard, Version 9.2, Chapter 21: Architecture Change Management

3: The TOGAF Standard, Version 9.2, Chapter 20: Migration Planning

4: The TOGAF Standard, Version 9.2, Chapter 19: Implementation Governance

A business scenario describes business and technology environment in which those problems occur. It provides a realistic context for identifying and addressing business problems and opportunities, as well as their impact on the enterprise’s architecture. Reference: The TOGAF® Standard | The Open Group Website, Section 3.3.1 Business Scenarios.

business and technology environment in which those problems occur https://pubs.opengroup.org/togaf-standard/business-architecture/business-scenarios.html#_Toc68617078 "

A Business Scenario is a uniform description of: - Real business problems - The business and technology environment in which those problems occur - Value streams enabled by capabilities - The desired outcome(s) of proper execution - The human and computing components (the “actors”) who provide the capabilities"

Comprehensive and Detailed Explanation

Architecture Partitioning is an ADM technique in TOGAF that addresses how large and complex architectures can be broken down into manageable parts. The intent is to make architecture development more effective, especially in large enterprises with multiple teams, stakeholders, and domains.

Key points from TOGAF:

TOGAF does not mandate a partitioning model. It provides guidelines and techniques to help architects determine whether and how to partition. This means statement 1 is incorrect.

Statement 2: Correct. Architectures may be partitioned to allow different teams to work on different elements in parallel (e.g., by domain, line of business, geographic scope). Partitioning provides clear ownership and reduces overlap or conflict.

Statement 3: Correct. Partitions can be structured in a way that supports architecture re-use, since well-defined partitions (e.g., capability-based or domain-based) enable consistent re-use of architecture building blocks across projects.

Correct Mapping

Statement 1: Incorrect (partitioning is not required by ADM).

Statement 2: Correct.

Statement 3: Correct.

Correct answer is D (2 and 3).

Why the other options are incorrect

A (1, 2 and 3): Incorrect because TOGAF does not require partitioning.

B (1 and 3): Incorrect because 1 is not correct.

C (1 and 2): Incorrect because 1 is not correct.

References

The Open Group, TOGAF® Standard, Version 9.2, Part III: ADM Guidelines & Techniques — Architecture Partitioning.

The Open Group, TOGAF® 9 Certified Study Guide — coverage of partitioning and its uses in large-scale architecture development.

The Business Transformation Readiness Assessment technique is used to evaluate the readiness of the organization to undergo change and to identify the actions needed to increase the likelihood of a successful business transformation. These actions should be incorporated in the Implementation and Migration Plan, which is the detailed plan to transition from the Baseline Architecture to the Target Architecture. The Implementation and Migration Plan also includes the Transition Architectures, the Architecture Building Blocks, the Work Packages, the Implementation Governance Model, and the Architecture Contract12 References: 1: The TOGAF Standard, Version 9.2, Part III: ADM Guidelines and Techniques, Chapter 27: Business Transformation Readiness Assessment 2: The TOGAF Standard, Version 9.2, Part II: Architecture Development Method (ADM), Chapter 21: Phase F: Migration Planning

An Architecture Board is an executive-level group responsible for the review and maintenance of the strategic architecture and all of its sub-architectures1. It is a key element in a successful Architecture Governance strategy2.

An Architecture Board is typically made responsible, and accountable, for achieving some or all of the following goals2:

Providing the basis for all decision-making with regard to the architectures

Consistency between sub-architectures

Establishing targets for re-use of components

Flexibility of the Enterprise Architecture: To meet changing business needs To leverage new technologies

Enforcement of Architecture Compliance

Improving the maturity level of architecture discipline within the organization

Ensuring that the discipline of architecture-based development is adopted

Supporting a visible escalation capability for out-of-bounds decisions

Therefore, the correct answer is option D, which captures one of the goals of an Architecture Board as stated in the TOGAF Standard, Version 9.22.

Option A is incorrect, because conducting assessments of the maturity level of architecture discipline within the organization is not a direct responsibility of an Architecture Board, but rather a part of the Architecture Capability Framework3.

Option B is incorrect, because allocating resources for architecture projects is not a direct responsibility of an Architecture Board, but rather a part of the Architecture Governance Framework4.

Option C is incorrect, because creating the Statement of Architecture Work is not a direct responsibility of an Architecture Board, but rather a part of the Architecture Development Method5. References:

1: Architecture Board - The Open Group3

2: TOGAF Standard, Version 9.2 - Part VI: Architecture Governance Framework - Architecture Board

3: TOGAF Standard, Version 9.2 - Part VI: Architecture Governance Framework - Architecture Capability Framework

4: TOGAF Standard, Version 9.2 - Part VI: Architecture Governance Framework - Architecture Governance Framework

5: TOGAF Standard, Version 9.2 - Part II: Architecture Development Method - Phase A: Architecture Vision

When considering agile development, Architecture to Support Portfolio will identify the necessary products for the enterprise, define their boundaries, and outline the constraints for a product owner. This process directly relates to defining the enterprise's backlog, which in agile methodologies, is a prioritized list of work for the development team that is derived from the roadmap and its requirements.

“In addition to the method itself being iterative, there is also iteration within the ADM cycle, both among the individual phases and among the steps within a phase.” www.opengroup.org