What\'s the big deal about \'requirements\'?

What\'s the big deal about \'requirements\'?

Requirement is basically One of the most reliable methods of insuring problems, or failure, in a complex software project is to have poorly documented requirements specifications .

It is defined as :
> Requirements are the details describing an application\'s externally perceived functionality and properties.
> Requirements should be clear, complete, reasonably detailed, cohesive, attainable, and testable.
> A non testable requirement would be, for example, \'user-friendly\' (too subjective).
> A testable requirement would be something like \'the user must enter their previously assigned password to access the application\'.
> Determining and organizing requirements details in a useful and efficient way can be a difficult effort; different methods are available depending on the particular project.
> Many books are available that describe various approaches to this task.
> Care should be taken to involve ALL of a project\'s significant \'customers\' in the requirements process.
> \'Customers\' could be in house personnel or out, and could include end-users, customer acceptance testers, customer contract officers, customer management, future software maintenance engineers, salespeople, etc.
> Anyone who could later derail the project if their expectations aren\'t met should be included if possible.
> Organizations vary considerably in their handling of requirements specifications. Ideally, the requirements are spelled out in a document with statements such as \'The product shall. \'Design\' specifications should not be confused with \'requirements\'; design specifications should be traceable back to the requirements.

In some organizations requirements may end up in high level project plans, functional specification documents, in design documents, or in other documents at various levels of detail. No matter what they are called, some type of documentation with detailed requirements will be needed by testers in order to properly plan and execute tests. Without such documentation, there will be no clear cut way to determine if a software application is performing correctly.

Date:2025-01-09 00:00:00

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