According to TOGAF, a good architecture principle must be understandable, robust, complete, consistent, and stable. Crucially, it must be endorsed by key stakeholders, especially senior management, to have authority and be effectively used in governing architecture development and implementation. Principles that are too technical, overly detailed, or ambiguous fail to provide the necessary strategic guidance.

The Statement of Architecture Work is the formal deliverable of Phase A: Architecture Vision. It defines the scope of the architecture project, the plan, and the deliverables. It explicitly states what is within the project’s boundaries and, just as importantly, what is outside of scope, ensuring shared understanding and managing stakeholder expectations.

In TOGAF’s Application Architecture, a logical application component represents a grouping of application functionality aligned to business needs, independent of specific technology or vendor implementation. Defining ‘Customer Profile Management’ as such a component separates the business function from the physical systems, allowing architects to specify what capabilities the target state must provide, regardless of how they are eventually packaged into physical applications.

Phase G: Implementation Governance is specifically concerned with ensuring that implementation projects conform to the defined architecture. The architecture contract, established in this phase, is meant to prevent exactly this kind of deviation. The project’s choice to bypass a mandated standard for short-term gain undermines the architectural integrity, reuse, and security the standard service was designed to provide.

Within the TOGAF Technical Reference Model (TRM), Infrastructure Services include the fundamental hardware and software services upon which applications are built. This category encompasses compute, storage, and network services. Providing shared, on-demand access to computing resources (like servers) is a classic example of a Compute Infrastructure Service, a sub-category within Infrastructure Services.

Phase F: Migration Planning is where the target architectures are translated into actionable plans. A key output is the Implementation and Migration Plan, which includes a detailed project portfolio. This portfolio prioritizes and sequences work packages and projects based on business value, risk, and dependencies, providing the concrete roadmap and business case that directly informs funding decisions.

An Architecture Building Block (ABB) is defined in TOGAF as a component of the architecture that describes a required capability. It is functionally defined and specification-oriented, meaning it describes *what* the solution must do, not *how* it is implemented. ABBs are technology-agnostic and are later realized by Solution Building Blocks (SBBs), which can be product-specific.

A Value Stream Map is a Business Architecture artifact that illustrates the sequence of activities an organization undertakes to deliver a specific product, service, or value to a customer. It is ideal for showing the end-to-end flow (e.g., order-to-cash), highlighting delays, hand-offs, and inefficiencies across different business units, which aligns perfectly with the described scenario.

Following approval, Phase G: Implementation Governance begins. The key initial activity is the creation and signing of an Architecture Contract between the architecture function and the sponsoring organization(s). This contract formally governs the implementation, ensuring that the development organizations understand and agree to conform to the architecture, and establishes the mechanism for compliance reviews.

According to TOGAF, a good architecture principle must be understandable, robust, complete, consistent, and stable. Crucially, it must be endorsed by key stakeholders, especially senior management, to have authority and be effectively used in governing architecture development and implementation. Principles that are too technical, overly detailed, or ambiguous fail to provide the necessary strategic guidance.0