Domains

Domains are the rows of the SAF grid They implement the Stakeholder Perspective Concept from ISO 42010

Architecture Management Domain

Defines overarcing content, e.g. Terms, Applicable Standards

Conceptual Domain

Conceptual Domain Viewpoints

The Functional Architecture addresses information needs during the System Requirements Definition process. It focuses on the black box aspects of the system, considering how the system interacts with its environment and the user, without delving into internal details. For example, it translates the intended solution from the Operational Domain into the system’s Functions, defining the expected behavior and quality attributes such as performance, safety, and security. These system behaviors are perceived by the user or external entities at the system boundary (referred to as usage behavior). The outcome of this viewpoint is a comprehensive System Specification, which outlines the required system performance from an external perspective.

The Logical Architecture addresses the information needs during the Architecture Definition process, focusing on the system’s internal structure and how its components interact. It describes the Logical Structure of the System of Interest (SOI) and how responsibilities for system functionality are distributed across a network of interacting Logical Elements. These Logical Elements are tasked with specific functions, and their interactions are arranged in the system’s Logical Architecture. This architecture is often influenced by non-functional criteria, such as maintainability, reliability, safety, and security, ensuring that the system is robust and scalable.

SAF Development Domain

The SAF Development Domain supports the development, maintenance and extension of the SAF.

Operational Domain

The SAF Operational Domain adresses the information need during the concept phase (misson Analysis and Stakeholder Requirements elicitation).

It supports the model-based development of a CONOPS - as well as an OPSCON and related life cycle concepts - for an organization or operational entity seeking for an improvement of existing capabilities or in establishing new ones.

Physical Domain

The SAF Physical Domain addresses information needs during the Design Definition Process. It takes a view on the physical black and white box aspects of the system.

It supports the representation of the Product Breakdown Structure, the identification of external and internal physical interfaces, the provision of viewpoints for the system overview, the integration planning, production planning, and the features and variations implied in the system. The physical architecture typically is a combination of re-use elements, COTS elements and make-items for HW as well as for SW. The properties of the selected physical components and their provided resources are identified and modeled. A major concern of the SAF Physical Domain are the physical interfaces, their identification and definition. For that purpose, the SAF Physical Domain provides the viewpoints to model interface with different level of detail considering the actual needs for the point of time in the project life cycle. For traceability the SAF Physical Domain defines viewpoints showing the mapping of the functional elements and their interfaces to physical elements and their interfaces.