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This preliminary phase focuses on determining desired architecture capabilities, outlining detailed processes, and selecting tools to establish architecture governance. Evaluate maturity, define principles, and tailor frameworks for effective implementation.
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Preliminary Phase - Objectives • Determine the Architecture Capability desired by the organization: • Identify and scope the elements of the enterprise organizations • Identify frameworks, methods, and processes • Establish a Capability Maturity target • Establish the Architecture Capability: • Define and establish the Organizational Model for Enterprise Architecture • Define and establish the detailed processes and resources for architecture governance • Select and implement tools that support the Architecture Capability • Define the Architecture Principles
Preliminary Phase - Approach • Defining the enterprise • Identifying key drivers and elements in the organizational context • Defining the requirements for architecture work • Defining the Architecture principles that will inform any architecture work • Defining the framework to be used • Evaluating the enterprise architecture maturity
Preliminary Phase – Main Inputs • Togaf • Other architecture frameworks • Business strategy, IT strategy • Business principles, business goals, and business drivers • Governance and legal frameworks, including architecture governance strategy, when pre-existing • Partnership and contract agreements
Preliminary Phase – Steps Scope the impacted Enterprise Organizations Confirm Governance and Frameworks Define and Establish Enterprise Architecture Team and Organization Identify Architecture Principles Tailor TOGAF and, if any, Other Selected Architecture Framework(s) Implement Architecture Tools
Preliminary Phase – Outputs • Organizational Model for Enterprise Architecture • Tailored Architecture Framework including architecture principles • Initial Architecture Repository • Restatement of business principles, goals, and drivers • Request for Architecture Work • Architecture Governance Framework
Phase A : Architecture Vision – Objectives • Develop a high-level aspirational vision of the capabilities and business value to be delivered as a result of the proposed enterprise architecture • Obtain approval for a Statement of Architecture Work that defines a program of works to develop and deploy the architecture outlined in the Architecture Vision
Phase A : Architecture Vision – Approach • Phase A defines what is in and what is outside the scope of the architecture effort and the constraints that must be dealt with. • Create the architecture vision document • Clarifying and agreeing the purpose of architecture • Demonstrating how it will be achieved • A first-cut, high-level description of the Baseline and Target Architectures • The business scenarios technique can be used to develop the architecture vision
Phase A : Architecture Vision – Approach Business scenarios are an appropriate and useful technique to discover and document business requirements, and to articulate an Architecture Vision that responds to those requirements.
Phase A : Architecture Vision – Inputs • Request for Architecture Work • Business principles, goals, and drivers • Organizational Model for Enterprise Architecture • Tailored Architecture Framework including architecture principles • Populated Architecture Repository
Phase A : Architecture Vision – Steps Establishthe Architecture Project Identify Stakeholders, Concerns, and Business Requirements Confirm business goals, drivers, and constraints Evaluate business capabilities Assess Readiness for Business Transformation Define Scope
Phase A : Architecture Vision – Steps 7. Confirm and Elaborate Architecture Principles, including Business Principles 8. Develop Architecture Vision 9. Define the Target Architecture Value Proposal 10. Identify the Business Transformation Risks and Mitigation Activities 11. Develop Statement of Architecture Work; Secure Approval
Phase A : Architecture Vision – Outputs • Approved Statement of Architecture Work • Project description and scope • Overview of architecture vision • Project plan and schedule • Refined statements of business goals, principles, and drivers. • Architecture principles including business principles
Phase B : Business Architecture - Objectives Develop the Target Business Architecture that describes how the enterprise needs to operate to achieve the business goals, respond to the strategic drivers set out in the Architecture Vision, and addresses the Request for Architecture Work and stakeholder concerns Identify candidate Architecture Roadmap components based upon gaps between the Baseline and Target Business Architectures
Phase B : Business Architecture - Approach • A knowledge of the Business Architecture is a prerequisite for architecture work in any other domain (Data, Application, Technology) • and is therefore the first architecture activity that needs to be undertaken • The Business strategy defines what to achieve • Business Architecture describes how to achieve it
Phase B : Business Architecture - Approach • Scope depends on existing strategy and planning • If there is no existing strategy or planning: • Identify any existing architecture definitions, then verify and update • New process definitions may require detailed work • In both cases, use business scenarios to identify key business objectives and processes
Phase B : Business Architecture - Inputs • Request for Architecture Work • Refined statements of Business principles, goals, and drivers • Capability Assessment • Organizational Model for Enterprise Architecture • Tailored Architecture Framework
Phase B : Business Architecture - Inputs • Approved Statement of Architecture Work • Architecture principles • Architecture Repository • Architecture Vision • Draft Architecture Definition Document
Phase B : Business Architecture - Steps • Select Reference Models, Viewpoints, and Tools • Develop Baseline Business Architecture Description • Develop Target Business Architecture Description • Perform Gap Analysis • Define Candidate Roadmap Components
Phase B : Business Architecture - Steps 6. Resolve Impacts Across the Architecture Landscape 7. Conduct Formal Stakeholder Review 8. Finalize the Business Architecture 9. Create Architecture Definition Document
Phase B : Business Architecture - Outputs • Statement of Architecture Work • Validated business principles, goals, and drivers • Draft Architecture Definition Document • Draft Architecture Requirements Specification • Business Architecture components of an Architecture Roadmap