Domain C: Enterprise Architecture Deployment

The Enterprise Architecture Deployment process is that part of the TOGAF Architecture Lifecycle Method concerned with deploying the target enterprise architecture(s) and solutions.

The target  is described in Domain A: Architecture Development, and planned by Domain B: Business Transformation, as a set of Enterprise Solutions that will fulfil the target enterprise architecture.

Purpose

This domain defines the implementation plan for deploying the architecture and typically describes a phased approach in which a prioritized series of transitional architectures is deployed, each representing an incremental step towards the target architecture.

The solution deployed in this domain is, in effect, the organization’s own Solution Architecture. It implements the organization-specific architecture depicted on the right-hand side of the Architecture Continuum, and is the result of re-using (from the Solutions Continuum), developing, or procuring the required set of Solution Building Blocks (SBBs).

The Enterprise Continuum is described in detail in the Book 3.

Objectives

The objectives of Domain C are to:

• Develop and procure the Solutions Building Blocks (SBBs) to populate the Solutions Continuum

• Define the implementation plan and ensure Solutions Framework phases are clearly articulated and implemented according to the Architecture Governance

• Develop the Operational Framework to support the Enterprise Architecture and Solutions Framework and define the Operational Building Blocks

• Develop an agile lifecycle model:

  • Programs, projects, and portfolios

  • Iterative

  • Incremental

  • Quick win

  • Move through transitions to target architecture

  • Changes during implementation managed by Architecture Change Management

Approach

TBD

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Example: NASCIO Solution Architecture

NASCIO identifies the Solution Architecture as a component of the enterprise architecture that focuses on the development and implementation of a solution or service being created for the enterprise.

It goes on to identify the Solution Architecture framework as a combination of structured processes and templates that utilize existing architecture documents (such as business, information, and technology components as well as models and patterns) to design a desired business solution.

The Solution Architecture framework, by allowing the development of a Solution Set, facilitates the rapid development and delivery of a solution in a systematic and well-disciplined manner.

Structure

Domain C consists of the following phases:

• Phase C-A: Solutions and Operations Architecture Planning
• Phase C-B: Solutions Building Block Development & Procurement
• Phase C-C: Operations Architecture Implementation
• Phase C-D: Operations Architecture Continuous Development

Exit

Closure on this domain will be when the key deliverables have been completed, agreed by all concerned including the Board, and the next domain has been activated.