TOGAF

TOGAF, known as The Open Group Architecture Framework, serves as a widely adopted method for building and overseeing enterprise architecture. It presents a thorough strategy for crafting, organizing, executing, and overseeing enterprise architecture within a company. This framework is overseen by The Open Group, an international coalition dedicated to establishing open, impartial technology standards and certifications. Comprising a collection of guidelines, best practices, and tools, TOGAF aids organizations in aligning their business aims with IT strategy, resulting in enhanced decision-making, risk control, and resource utilization. TOGAF highlights the significance of developing a comprehensive understanding of the enterprise, covering business, data, application, and technology architecture, to propel business transformation and fulfill organizational objectives. 

Here is the TOGAF to move 

In response to evolving business needs, our organization is initiating a strategic migration of our on-premise data to Amazon Web Services (AWS) cloud infrastructure, driven by the imperative for increased agility and scalability. 

The Architecture Development Method (ADM) serves as the heart of TOGAF offering a methodical approach to shaping enterprise architecture. With its structured stages, the ADM provides clear direction for the architectural design process. 

Phase A: Architectural Vision: 

The initial act here includes setting up the template for scope definition, as well as defining priorities and the concerns of stakeholders involved in the cloud migration project. This practice defines the plan for the entire project and provides guidelines. 

Stakeholders: 

CIO, CDO, CFO, VPs, IT Leaders, Legal Department.

ABBs: 

Document "Cloud Strategy" that spells out the vision, purpose, and guiding principles; "Business Case for Cloud Adoption" that underlines the advantages and profits; Stakeholders "Concerns Matrix" which lists the primary issues and requests.

SBBs: 

The Vision Statement which indicates what the completion of the migration project is meant to achieve; and Business Capability Model which includes the business capabilities currently practiced, and shows future ones which are required to achieve a successful cloud adoption. 

Phase B: Business Architecture: 

Here business Architect's task is to identify the current state of the organization concerning the structure, processes, and goals while ensuring that the migration project is well aligned with business objectives.

Stakeholders: 

A Business Analyst, a process owner, an HR Manager, a finance manager, and a marketing department employee. 

ABBs: 

The ERP Process Model highlighting current and future state processes flow; Organization Chart presenting reporting relationships and roles matrix; Company Strategy Document specifying strategic purposes and assumptions.

SBBs: 

Business Process Optimization Plan to cover the requirements that will be enforced during migration, and Change Management plan for strategy, procedures, and organization when it comes to Amazon Web Services implementation. 

 Phase C: Information System Architecture: 

This stage reviews the current IT infrastructure, comprising of applications, database, and network, and accordingly determines the elements to migrate to the Amazon Web Services. Stakeholders: 

IT Architects, DBA's, Data Analysts, App Owners, Compliance Officers.

ABBs: 

Listing of Data Assets along with their attributes will be a part of Data Inventory. Application Portfolio will have a catalog of existing applications with their dependencies. Data Flow Diagrams will be used to show dataflows between systems.

SBBs: 

Data Migration Strategy specifying the procedures of data transfer to the AWS; Application Rationalization Plan featuring applications choices: to remove/ replace or refactor them. 

Phase D: Technology Architecture: 

It specifies the technical layers that require upgrades in order to pave way for migration, such as networking, security, and integration.

Stakeholders: 

IT infrastructure teams, security analysts, network engineers, system administrators, and devops engineers. 

ABBs: 

Schematics that make the network architecture easy to understand, the current state and the future state; Security Policies that describe security requirements and controls; Integration requirements that specify where on-premise and AWS integration will occur. 

SBBs: 

Cloud Infrastructure Design which involves an architecture of cloud resources; Security Architecture Blueprint that describe the secure provisions in the cloud housing.

Phase E: Opportunities and Solutions:

Basically, the stage is the one in which we have to research and make a selection of cloud providers to get a solution that meets our tech and business needs.

Stakeholders: 

Purchasing Staff, IT Professionals, Vendors Management, Legal Team, Compliance Unit.

ABBs: 

Cloud Provider Evaluation Criteria involving criteria to be used for the assessment of cloud providers: vendor contracts which set and terms and conditions for the services; service level agreements that specify the levels of services provided.

SBBs: 

The Cloud Provider Comparison Matrix featured three different cloud providers in terms of features, pricing, and compliance certifications. Vendor Selection Scorecard evaluated cloud providers based on criteria. 

Phase F: Migration Planning: 

From Phase F, came up with an elaborate blueprint for moving of data and applications to cloud including not just timelines, budgets, and risk control but also migration to production. 

Stakeholders: 

PM, IT-Ops Team, Risk Managers, Business Continuity Planning Team, Change Management Team. 

ABBs: 

Navigation Report outlining tasks and milestones to the migration project; Resource Distribution plan assigning roles and responsibilities to team members; Risk Assessment table identifying potential risks and hazards. 

SBBs: 

Project schedules, handover checklists and risk registers are used to ensure the systematic execution of handover tasks, reducing risk. 

Phase G: Implementation Management: 

This stage is aimed at getting the control mechanisms for implementation of the immigration plan and monitoring it according to the statutes and norms.

Stakeholders: 

The Governance Board, Compliance Officers, Audit Team and legal department, example, the Executive Leadership.

ABBs: 

Governance Structure for setting the roles, responsibilities and decision-making processes, Compliance Checklist giving space for compliance to all rules and regulations, Audit Plan with time frames as per the nature of the audit activity.

SBBs: 

Change Control Board Procedures revolving modifications of plan and infrastructure coming under new governance; monitoring dashboard reflecting compliance with regulations and policies.  

 Phase H: Architecture Change Management: 

Supervises and supports the changes affection at any stage during the migration process, identifying and resolving deviations and therefore, ensure continuous improvement process. Stakeholders: 

Key members of the change management team, IT support staff, end users or customers, training department and quality assurance team.

ABBs: 

A change request log that will capture the requested changes and their status, lessons learned repository communicating insights, best practices which were obtained as a result of the migration project and communication plan — communication channels that will be used to deliver the message to different stakeholders. 

SBBs: 

Updating the Continuous Improvement Process to provide support in key domains with the focus on AWS resources; Preparing and Implementing the User Training Plan encompassing the cloud services and user proficiency in the application process.