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Often, no single optimal solution for any given set of architecture design problems exists. Architectural decision making is a core responsibility of software architects; [5] additional motivation for/of the importance of architectural decisions as a first-class concept in software architecture can be found online. [6]
Architecturally significant requirements are those requirements that have a measurable effect on a computer system’s architecture. [1] This can comprise both software and hardware requirements. They are a subset of requirements , the subset that affects the architecture of a system in measurably identifiable ways.
Broadly, functional requirements define what a system is supposed to do and non-functional requirements define how a system is supposed to be.Functional requirements are usually in the form of "system shall do <requirement>", an individual action or part of the system, perhaps explicitly in the sense of a mathematical function, a black box description input, output, process and control ...
In architecture, a brief is a statement of a client's requirements, which form the basis for appointing an architect.The brief describes the requirements that need to be reconciled and accommodated, and is developed first as a design which is submitted for approval, and subsequently constructed as a building or other structure.
Requirements engineering (RE) [1] is the process of defining, documenting, and maintaining requirements [2] in the engineering design process. It is a common role in systems engineering and software engineering .
Example of a high-level systems architecture for a computer. A system architecture is the conceptual model that defines the structure, behavior, and views of a system. [1] An architecture description is a formal description and representation of a system, organized in a way that supports reasoning about the structures and behaviors of the system.
Industry analysts suggest that this trend plays a bigger part in driving upgrades to existing computer systems than technological advancements. A second meaning of the term system requirements, is a generalisation of this first definition, giving the requirements to be met in the design of a system or sub-system.
Since the architecture has to be validated against Need, links with requirements and operational scenarios are also produced. "Development of System/SW Architecture – Physical Architecture", The fourth step has the same intents as logical architecture building, except that it defines the "final" architecture of the system/SW at this level of ...