The phrase "a functional requirements" is not correct in written English.
It should be "functional requirements" without the article "a" since "requirements" is plural.
Example: "The project documentation includes a detailed section on functional requirements that must be met."
Alternatives: "functional specifications" or "functional criteria".
Within Human Factors Engineering, a decision-making process called function allocation (FA) is used during the design life cycle of complex systems to distribute the system functions, typically identified through a functional requirements analysis, to all human and automated machine agents (or teammates) involved in controlling the system.
A functional requirements specification defines the desired functions, behavior, and external communication of the system under development (SuD), and the requirements-level architecture is a decomposition that assumes a perfect implementation technology.
This chapter provides guidelines for defining a requirements-level system architecture based on a functional requirements specification.
Findings by ONC S&I LRI PHWG demonstrated that there are significant gaps in development of (a) functional requirements for PH-R and (b) interoperable standards-based specifications that support PH-R electronic data exchange from clinical care to public health and within public health.
Functions are the most important device selection criteria for a function-oriented automated design, where based on a functional requirement specification full-functioning and complete building automation systems are to be designed.
Analyses of sigmar loss-of-function in Drosophila salivary glands demonstrate a functional requirement in the JNK signaling pathway, cytoskeleton organization and autophagy during salivary gland development.
If he did, he would surely see that such a property is a functional requirement for highly social creatures such as us humans.
