Week 5 Requirements Engineering1

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Question English
Answer English

What are requirements?
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Descriptions of what the system should do: the services that it provides and the constraints on its operation

what are user requirments?
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features the user needs the software product to support

What are system requirements?
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things the software needs to function

what are functional requirements?
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defines a function of a system or its component. A function is described as a set of inputs, the behavior, and outputs.

what are non functional requirements?
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a requirement that specifies criteria that can be used to judge the operation of a system, rather than specific behaviors. They are contrasted with functional requirements that define specific behavior or functions.

What is requirements engineering?
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The process of gathering, analysing, documenting, and checking requirements

what are teh 4 stages of Requirements engineering?
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▶ Feasibility study ▶ Requirements elicitation ▶ Requirements specification ▶ Requirements validation

What is a feasibility study?
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an assessment of the practicality of a proposed plan or method.

What is requirments elicitation?
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the practice of collecting the requirements of a system from users, customers and stakeholders. AKA "requirement gathering" Commonly used elicitation processes are the stakeholder meetings or interviews.

Whata re the 4 stages of Requirements Elicitation?
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1) discovery and understanding 2) clasification adn organisation 3) prioritisation and negotiation 4) documenttation

what are the main methods of requirements elicitation?
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interviews, focus groups, scenarios, use cases, ethnography

what is ethnography?
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wtaching how people work and understanding based on observation

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