Architecture

A holistic conceptual model that details how the many Components of a System are linked together by its underpinning Structures, enabling the whole system to function in a manner that achieves specific objectives.  

At its highest level, a Systems Architecture conveys the essence of the structural relationships, linkages and interdependencies between the Components that enable them to function together.  Simplistically, the boxes in a Block Diagram represent the many components and the Architecture is represented by the lines that connect the boxes.   

A key purpose of a Systems Architecture is to make explicit, and enable collective reasoning about, how all the physical, informational, operational, and transactional Components function together, and to reveal non-scalable legacy constraints.  Although the Components are typically more visible, the underpinning structural relationships always have a disproportionate influence on the Systems’ operational capabilities and constraints.   

Ensuring legacy structural relationships are capable of scaling to support very different future requirements is key to ensuring secure, reliable and cost-efficient operation at times of substantial transformation. 

Refer also to Systems Engineering and Power Systems Architecture (PSA).

Given the fast-evolving nature of power system transformation, the Future Grid Accelerator (FGA) has the status of a perpetual BETA version. Your suggestions for how each concept and definition may be enhanced are very welcome.

All feedback will be reviewed and considered for inclusion in subsequent updates.

Please provide your suggestions to improve to this definition: