功能性需求是说有具体的完成内容的需求。例如：比如客户登录、邮箱网站的收发收发邮件、论坛网站的发帖留言等。非功能性需求是指软件产品为满足用户业务需求而必须具有且除功能需求以外的特性，包括系统的性能、可靠性、可维护性、可扩充性和对技术和对业务的适应性等。例如：性能要求：要求系统能满足100个人...
functional requirementsnonfunctional requirementsquality criteriasoftware developmentsoftware requirementsstakeholder decisionsThis chapter defines the term "requirement," both formally and informally. There are two kinds of requirements, functional and nonfunctional. Functional requirements are decisions the ...
Functional requirements: These are statements of services the system should provide, how the system should react to particular inputs and how the system should behave in particular situations. In some case, the functional requirements may also explicitly state what the system should not d...
When comparing functional vs. non functional requirements, consider that a functional requirement might ensure the system loads a specific web page when the user clicks on a button. The non-functional requirement might dictate how fast the site loads. A website that loads slowly can adversely affe...
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Non-functional requirements examples Website load time demonstrates an example of nonfunctional requirements. The fact that a website must be able to load certain information and displays for the user is a functional requirement; the non-functional requirement dictates a response time threshold: ...
Functional requirements are performance constraints that a product must satisfy. Without well-defined functional requirements, there is no success. And here they are.
Enterprise applications have an additional challenge of eliciting requirements that need to be well understood by i) the business users of the system having extensive domain knowledge ii) application developers having extensive system implementation and development knowledge. Current tools vary from ...
(A)如何改正社会缺点(B)如何建立好个性(C)如何在家感觉与陌生人(D)如何交朋友[translate] aThe specification consists of the functional and non-functional requirements the final software product shall fulfill. specifi正离子包括功能,并且final软件产品将fulfill的non-functional要求。[translate]...
As we said, functional requirements are used to describe the system's desired capabilities or functionality or what the system must do. On the contrary, non-functional requirements focus on the system’s quality attributes, such as speed, security, reliability, etc., and define how the product...