Requirements Engineering: The Key to Building Software
Documenting requirements is an essential task, serving as the foundation for success in subsequent business analysis phases. The requirements document plays a crucial role in the design, development, creation of user manuals, and maintenance of the system, as well as facilitating future reuse for other projects by developers.
The following characteristics of a Requirements Document are necessary:
Clear Structure: Α clear structure is necessary. Every involved part with access to the document must find what he is looking for easily. He can skip parts that does not need and to focus on the valuable elements.
Traceability in document and in requirements: The traceability of relationships between requirements documents and other documents (e.g., business process model, test plans, or design plans) is one of critical success. Moreover each requirement itself must be traceable. A unique identifies and some structured information fields per requirement may serve this goal. Furthermore, in Requirements Life Cycle Management Knowledge Area of BABOK® Guide a traceability Repository is suggested. Requirements management tools can provide significant benefits when there is a need to trace a large number of requirements that may be deemed unmanageable with manual approaches.
Consistency: Εvery requirement included in a BRD or FRD must be understandable, clearly stated without any chances of misinterpretation. Requirements documents can be consistent and unambiguous only when the individual requirements are consistent and unambiguous.
Holistic View: Νever forget that a requirement document except detailed requirements must present the larger picture. Getting and documenting a wider view of the business problem, integrating different views of the problem and the conditions cause the problem and grasping the connections between requirements, design, and testing in the solution domain must be mirrored in a requirements document.
In conclusion, a well-structured and detailed requirements documents is crucial for the success of a software development project. By ensuring traceability, consistency, and a holistic view of the problem, the requirements document can guide the development team in building a system that meets the needs of the stakeholders and users.
"No matter how good the team or how efficient the methodology if we're not solving the right problem, the project fails." - Woody Williams.