Requirements come in a number of forms from a wide range of sources. For consistency, communication and change-control purposes, it is important to document and store them in a standard way across the organisation. The level of detail and specific content of this standard documentation set will depend on a number of factors, including; Local policy, lifecycle for delivery, structure of development team, the level to which requirements apply, the relationships between requirements and any supporting models.
The requirements documentation is an integral part of the business analysis work as it will usually form the basis from which the final business solutions are delivered to the organisation. After the requirements have been documented fully they will then be reviewed by all interested stakeholders to ensure they are all correct, with appropriate and clear descriptions.
The requirements are elicited through the various analytical techniques used throughout the earlier phases in the business analysis lifecycle.
The completion of the requirements document is usually the responsibility of the business analyst, who will have spent sufficient time gathering and eliciting the requirements through various analytical techniques earlier on in the business analysis lifecycle.
Traditionally the requirements document will be laid out in the following manner:
Requirements can usually be split into the following categories. Although not exhaustive, this list represents some of the most common requirements.
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It is important to make sure all requirements are signed off by their responsible owners. At which point the requirements document can be passed over to IT or the project team to deliver the changes. It is worth noting that the requirements document may require some supporting system models such as class diagrams or use cases.