Problem frames: analyzing and structuring software development problems
Problem frames: analyzing and structuring software development problems
Bridging the gap between requirements and design: An approach based on Problem Frames and SysML
Journal of Systems and Software
Requirements analysis and modeling with problem frames and SysML: a case study
ECMFA'10 Proceedings of the 6th European conference on Modelling Foundations and Applications
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The approach to requirements modelling based on problem frames is gaining increasing attention and popularity. This paper reports an experience in the application of problem frames to modelling the requirements of a system for monitoring the transportation of dangerous goods (namely, petrol and other types of fuels) by trucks. The paper shows that in general the main requirements of the system can be modelled by means of problem frames or problem frame compositions. In the considered system, the requirements are deeply affected by the central role played by the database that stores the data collected from trucks. In one case, the presence of the database made it difficult to identify a problem frame, among those available, to describe the user requirements: this resulted in the proposal for a new problem frame. Another consequence of the presence of the database is that several frame compositions are structured according to a sequential pattern, governed by accesses to the database.