Stakeholder: Infrastructure Architects

Stakeholder Viewpoint : Archimate

Concerns: Architecture mission and strategy, motivation
Purpose: Designing, deciding, informing
Scope: Motivation

The stakeholder viewpoint allows the analyst to model the stakeholders, the internal and external drivers for change, and the assessments (in terms of strengths, weaknesses, opportunities, and threats) of these drivers. Also, the links to the initial (high-level) goals that address these concerns and assessments may be described. These goals form the basis for the requirements engineering process, including goal refinement, contribution and conflict analysis, and the derivation of requirements that realize the goals.

Goal Realization Viewpoint: Archimate

Concerns: Architecture mission, strategy and tactics, motivation
Purpose: Designing, deciding
Scope: Motivation

The goal realization viewpoint allows a designer to model the refinement of (high-level) goals into more tangible goals, and the refinement of tangible goals into requirements or constraints that describe the properties that are needed to realize the goals. The refinement of goals into sub-goals is modeled using the aggregation relationship. The refinement of goals into requirements is modeled using the realization relationship.

In addition, the principles may be modeled that guide the refinement of goals into requirements.

Requirements Realization Viewpoint : Archimate

Concerns: Architecture strategy and tactics, motivation
Purpose: Designing, deciding, informing
Scope: Motivation

The requirements realization viewpoint allows the designer to model the realization of requirements by the core elements, such as business actors, business services, business processes, application services, application components, etc. Typically, the requirements result from the goal refinement viewpoint.

In addition, this viewpoint can be used to refine requirements into more detailed requirements. The aggregation relationship is used for this purpose.

Motivation Viewpoint : Archimate

Concerns: Architecture strategy and tactics, motivation
Purpose: Designing, deciding, informing
Scope: Motivation

The motivation viewpoint allows the designer or analyst to model the motivation aspect, without focusing on certain elements within this aspect. For example, this viewpoint can be used to present a complete or partial overview of the motivation aspect by relating stakeholders, their primary goals, the principles that are applied, and the main requirements on services, processes, applications, and objects.

Project Viewpoint : Archimate

Concerns: Architecture vision and policies, motivation
Purpose: Deciding, informing
Scope: Implementation and Migration

A project viewpoint is primarily used to model the management of architecture change. The “architecture” of the migration process from an old situation (current state Enterprise Architecture) to a new desired situation (target state Enterprise Architecture) has significant consequences on the medium and long-term growth strategy and the subsequent decision-making process. Some of the issues that should be taken into account by the models designed in this viewpoint are:

  • Developing a fully-fledged organization-wide Enterprise Architecture is a task that may require several years.
  • All systems and services must remain operational regardless of the presumed modifications and changes of the Enterprise Architecture during the change process.
  • The change process may have to deal with immature technology standards (e.g., messaging, security, data, etc.).
  • The change has serious consequences for the personnel, culture, way of working, and organization.

Furthermore, there are several other governance aspects that might constrain the transformation process, such as internal and external cooperation, project portfolio management, project management (deliverables, goals, etc.), plateau planning, financial and legal aspects, etc.

Migration Viewpoint : Archimate

Concerns: History of models
Purpose: Designing, deciding, informing
Scope: Implementation and Migration

The migration viewpoint entails models and concepts that can be used for specifying the transition from an existing architecture to a desired architecture.

Implement Migration Viewpoint : Archimate

Concerns: Architecture vision and policies, motivation
Purpose: Deciding, informing
Scope: Multiple layer/Multiple aspect

The implementation and migration viewpoint is used to relate programs and projects to the parts of the architecture that they implement. This view allows modeling of the scope of programs, projects, project activities in terms of the plateaus that are realized or the individual architecture elements that are affected. In addition, the way the elements are affected may be indicated by annotating the relationships.

Furthermore, this viewpoint can be used in combination with the programs and projects viewpoint to support portfolio management:

  • The programs and projects viewpoint is suited to relate business goals to programs and projects. For example, this makes it possible to analyze at a high level whether all business goals are covered sufficiently by the current portfolio(s).
  • The implementation and migration viewpoint is suited to relate business goals (and requirements) via programs and projects to (parts of) the architecture. For example, this makes it possible to analyze potential overlap between project activities or to analyze the consistency between project dependencies and dependencies among plateaus or architecture elements.

 

Technology Viewpoint : Archimate

Concerns: Stability, security, dependencies, costs of the infrastructure
Purpose: Designing
Scope: Single layer/Multiple aspect

The technology viewpoint contains the software and hardware technology elements supporting the Application Layer, such as physical devices, networks, or system software (e.g., operating systems, databases, and middleware).

Technology Usage Viewpoint : Archimate

Concerns: Dependencies, performance, scalability
Purpose: Designing
Scope: Multiple layer/Multiple aspect

The technology usage viewpoint shows how applications are supported by the software and hardware technology: the technology services are delivered by the devices; system software and networks are provided to the applications. This viewpoint plays an important role in the analysis of performance and scalability, since it relates the physical infrastructure to the logical world of applications. It is very useful in determining the performance and quality requirements on the infrastructure based on the demands of the various applications that use it.

Physical Viewpoint : Archimate

Concerns: Relationships and dependencies of the physical environment and how this relates to IT infrastructure
Purpose: Designing
Scope: Multiple layer/Multiple aspect

The physical viewpoint contains equipment (one or more physical machines, tools, or instruments) that can create, use, store, move, or transform materials, how the equipment is connected via the distribution network, and what other active elements are assigned to the equipment.