A statement of what the system or part of the system should do. It is a statement of a customer wish without specifying how that wish will be implemented. Requirements can be grouped into 'essential', 'useful' and 'desirable'. A requirement relates to multiple viewpoints and a viewpoint can be decomposed into multiple requirements. Several scenarios implement a requirement.
A statement of what is expected of a product or project, what role it is expected to fill or what it is expected to do. From Field and Keller, Project Management A feature which the system should have, which must be testable (ie checkable). (cf Goal which is not testable) From Sommerville, Software Engineering Similar to, but sometimes considered to be 'smaller' than, an objective
any mandatory, externally-observable, and validatable (e.g., testable) behavior, datum, characteristic, or interface of a business enterprise, application, application domain, framework, or component. Contrast with architecture and design. See also design constraint, external API requirement, informational requirement, operational requirement, and quality requirement.
anything indispensable; "food and shelter are necessities of life"; "the essentials of the good life"; "allow farmers to buy their requirements under favorable conditions"; "a place where the requisites of water fuel and fodder can be obtained"
a characteristic that a system or software item is required to possess in order to be acceptable to the acquirer while design is a characteristic that the acquirer is willing to leave up to the developer
Condition or capability that is necessary for a system to meet its objectives. Types of requirements [IEEE]: functional design implementation interface performance physical Other common types: business user program operational
A condition or capability needed by a user to solve a problem or achieve an objective. A condition or capability that must be met or possessed by a system or system component to satisfy a contract, standard, specification, or other formally imposed document. The set of all requirements forms the basis for subsequent development of the system or system component. See also requirements analysis, requirements phase, requirements specification.
IEEE] A condition or capability needed by a user to solve a problem or achieve an objective A condition or capability that must be met or possessed by a system or system component to satisfy a contract, standard. specification, or other formally imposed documents. A documented representation of a condition or capability as in (1) or (2). See: design requirement, functional requirement, implementation requirement, interface requirement, performance requirement, physical requirement.
A requirement is whatever you must fulfill in order to progress to the next level in the completion of something broader. For example, requirements can be courses you must pass, exams you must pass, or research papers you much write in order to complete a course, a degree program, or a certificate program.
Criteria that must be fulfilled. Requirements may exist for course enrollment, registration, or completion. atellite TV course A course that is delivered on TV through a dedicated satellite link. The course can be delivered to multiple groups of students. Satellite TV is one-way presentation. The students can see and hear the instructor on the TV screen, but the instructor cannot see or hear the students.
The Requirement was a document that Spanish conquistadores upon arriving in the New World read to native populations before attacking them. The text gave a brief overview of the history of the world, focusing on the rise of Christianity, and demanded that the natives accept the King of Spain as their supreme ruler on behalf of the Pope and allow for missionaries to preach the Gospel among them.
1. The need or demand for personnel, equipment, facilities, other resources, or services, by specified quantities for specific periods of time or at a specified time. 2. For use in budgeting, item requirements should be screened as to individual priority and approved in the light of total available budget resources.
In engineering, a requirement is a singular documented need of what a particular product or service should be or do. It is most commonly used in a formal sense in systems engineering or software engineering.