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Thus shall may be used (particularly in the second and third persons) to imply a command, promise or threat made by the speaker (i.e., that the future event denoted represents the will of the speaker rather than that of the subject). For example: You shall regret it before long. (speaker's threat) You shall not pass! (speaker's command)
Requirements are usually written as a means for communication between the different stakeholders. This means that the requirements should be easy to understand both for normal users and for developers. One common way to document a requirement is stating what the system must do. Example: 'The contractor must deliver the product no later than xyz ...
Generally, functional requirements are expressed in the form "system must do <requirement>," while non-functional requirements take the form "system shall be <requirement>." [3] The plan for implementing functional requirements is detailed in the system design, whereas non-functional requirements are detailed in the system architecture. [4] [5]
must: It must be hot outside. Sam must go to school. – shall: This shall not be viewed kindly. You shall not pass. – should: That should be surprising. You should stop that. – will: She will try to lie. – – would: Nothing would accomplish that. – – ought That ought to be correct. You ought to be kind.
The English modal auxiliary verbs are a subset of the English auxiliary verbs used mostly to express modality, properties such as possibility and obligation. [a] They can most easily be distinguished from other verbs by their defectiveness (they do not have participles or plain forms [b]) and by their lack of the ending ‑(e)s for the third-person singular.
Examples of written analysis tools: use cases and user stories. Examples of graphical tools: UML [7] and LML. System modeling – Some engineering fields (or specific situations) require the product to be completely designed and modeled before its construction or fabrication starts. Therefore, the design phase must be performed in advance.
This argument cannot be supported. The act declares, that the record, duly authenticated, shall have such faith and credit as it has in the state court from whence it is taken. If in such court it has the faith and credit of evidence of the highest nature, viz., record evidence, it must have the same faith and credit in every other court.
Requirements Triage or prioritization of requirements is another activity which often follows analysis. [4] This relates to Agile software development in the planning phase, e.g. by Planning poker, however it might not be the same depending on the context and nature of the project and requirements or product/service that is being built.