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the Problem Frames (PF) approach is a prospective tool for classifying, analyzing and structuring software development problems. However, it at current stage lacks a practical way to capture NFRs. This paper aims to extend the PF Approach for helping system analysts to capture non-functional requirements within the PF approach systematically. A new problem model and a model-guided process have been...
As the embedded systems are becoming more and more complex, requirements engineering approaches are needed for modeling requirements, especially the timing requirements. Among various requirements engineering approaches, the Problem Frames(PF) approach is particularly useful in requirements modeling for the embedded systems due to the characteristic that the PF pays special attention to the environment...
In the Problem Frames (PF) approach there are five basic problem frames and some variants to them. When a problem is being analysed, it is initially matched against these frames. If the problem does not fit into the basic problem frames or their variants, then problem analysis is performed. It has been recognised that `projection' is an effective technique for analysing problems. That is, each sub-problem...
Problem analysis has long been recognized as key to requirements engineering, for which problem frames approach offers a structured way by means of providing a generic paradigm for analyzing problems of various types. Problem decomposition is an important concern in structuring problem which has also been recognized as the key to mastering problem size and complexity. However, at present it still...
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