System Architecture (SA)

Systems Architecture goes beyond defining the structure of a system. It describes resource functions, interactions between resources, and provides detailed system interface models. It addresses the involvement of humans in both the operation of systems and in carrying out functions in their own right. The SA develops system solutions that satisfy the user requirements as well as the development of appropriate system requirements. The Systems Architecture will primarily be developed and exploited within the acquisition community and its associated supply chain.

The Systems Architecture provides graphical and textual artifacts that describe systems that support operations. The artifacts focus on the planning for and representation of actual systems, moving from “as is” to “to be” architectures. It captures system, service, and interconnection functionality providing for, or supporting, operational activities. The SA can be used to specify solutions to requirements specified in the Operational Architecture, or simply to provide more detail to the Operational Architecture.

A fully described and understood Systems Architecture results in numerous benefits for an organization. It helps streamline business processes through the discovery and elimination of process redundancy. It reduces systems information complexity by identifying and eliminating redundancy in data and software. Further, a well defined SA enables enterprise-wide integration through data sharing and consolidation and enables the rapid evolution to new technologies.