A product architecture specification is a document that formalizes and captures the system design of a design intervention.
A product architecture specification (PAS) is a document that summarizes and formalizes the systems design of a single level of the system hierarchy of a product. It includes the description of a single system as a collection of:
An “architecture” in engineering is a functional description of the transformations that a product applies to its inputs to create its outputs. As a step on the way to a full design, the architecture represents the most detailed description of each level of the system hierarchy before designers start giving form to the product itself.
Architectures are important for managing complexity because they allow one to partition functionality of a given system into functional “chunks” (subsystems) with well-understood interactions (system interfaces). This allows individual engineers to focus on specific functionality, knowing that there already exists a “map” to integrate that specific functionality back into a useful whole (the product).
The steps to create a PAS, per the design roadmap are:
A properly constructed PAS includes:
The use of extended point form is encouraged in this stage of the design.