A Comparative Study of the Decisional Needs Engineering Approaches

Requirements Engineering (RE) is an important phase in a project of systems development. It helps design-analysts to design and to model the expression of the end-user needs, and their expectations vis-a-vis their future system. This engineering is studying two major issues that are: What should the system do in order to have a complete needs specification, and reason on the why: "Why do we need to build this system? ", without looking for how to build it. The vast majority of needs engineering approaches are based on two concepts: scenario or goal; there are generally three types of approaches: Scenario-Oriented Approaches, Goal-Oriented Approaches and approaches generated by the couple: goals and scenarios at the same time. In the remainder of this paper, we present a comparative study of the three types of the RE approaches, then models of needs representation, and finally we conclude with the conclusions.

@article{Ahmad2018,
  title     = {A Comparative Study of the Decisional Needs Engineering Approaches},
  journal   = {International Journal of Advanced Computer Science and Applications},
  volume    = {9},
  number    = {8},
  year      = {2018},
  publisher = {The Science and Information Organization},
  author    = {OUTFAROUIN Ahmad and ZAHID Noureddine and ABDALI Abdelmounaïm},
  doi       = {10.14569/IJACSA.2018.090855},
  url       = {https://doi.org/10.14569/IJACSA.2018.090855}
}