Home > Requirements > MoSCoW Prioritisation To be successful projects need to be properly prioritised for both the requirements and the main project objectives. One mechanism is to use a number system, but this is flawed as it results in all elements being number one. A more useful method is to use a set of words that have meaning such as the MoSCoW method.
by Robert Japenga What Makes a Great Software Requirements Specification? There are many good definitions of System and Software Requirements Specifications that will provide us a good basis upon which we can both define a great specification and help us identify deficiencies in our past efforts. There is also a lot of great stuff on the web about writing good specifications. The problem is not lack of knowledge about how to create a correctly formatted specification or even what should go into the specification. The problem is that we don't follow the definitions out there.
Carnegie Mellon University 18-849b Dependable Embedded Systems Spring 1999 Author: Eushiuan Tran Abstract: Defining requirements to establish specifications is the first step in the development of an embedded system. However, in many situations, not enough care is taken in establishing correct requirements up front.
Without doubt the User Requirements Specification (URS), is the most critical of documents and yet, the most often bungled. Whether the system is purely mechanical, or a mix of electro-mechanical, or solely a software program, the successful compilation and execution of the Installation Qualification (IQ) (for installation), Operational Qualification (OQ) (for functionality) and the Performance / Product Qualification (PQ) (for operability), is dependent on an User Requirements Specification (URS) containing clear, concise and testable requirements. Once the end user requirements specification is documented, agreed and approved they form the basic URS Level-1 document. The engineers (or vendor) can then commence the preliminary design to establish exactly what functions are required for each of the items specified in the user requirements specification, the end user has listed. Once this functionality is documented and approved it forms URS Level-2 document.
Home > Requirements > User Requirements A good set of user requirements are needed for any project, especially computer system projects, to be successful. This is where many projects fail, in that they do not specify correctly what the system should do.
Home > Requirements > Requirements and Design When writing requirements it is very easy to end up producing a design rather than specifying what is wanted. IEEE 830 the IEEE Recommended Practice of Software Requirements Specifications (SRS) has a sentence in “4.7 Embedding Design in the SRS” which states:
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