For the purposes of this standard, the following definitions apply:

acquirer

An organization or individual that obtains a product.

acquirer-supplier agreement

An arrangement between two parties (an acquirer and a supplier) that defines the tasks to be performed and the acceptance criteria to be applied to delivered items.

activity

Any step or function performed, both mental and physical, toward achieving some objective. A task is a "formal" activity.

allocate

Assign performance requirements to a function, process, behavior, or other logical element of the system.

allocated baseline

The initially approved documentation describing a subsystem's functional, performance, interoperability, and interface requirements that are allocated from those of the system or a higher level subsystem; interface requirements with interfacing subsystems; design constraints; derived requirements (functional and performance); and verification requirements and methods to demonstrate the achievement of those requirements and constraints. Generally there is an allocated baseline for each subsystem to be developed.

appraisal method

The set of steps or procedure for conducting a systems engineering appraisal. The appraisal method consists of five phases: commitment, preparation, on-site, post-appraisal, and appraisal follow-up.

appraisal team

A team of experienced engineering professionals that are trained in the appraisal method to perform appraisal.

architecture

A high level design that provides decisions made about: the problem(s) that the product will solve, component descriptions, relationships between components, and dynamic operation description.

associated processes

Processes that enable one or more end products to be put into service, maintained in service, or disposed at the end of service.

attribute

A characteristic...