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Modelling assumptions and requirements in the context of project risk

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4 Author(s)
Miranskyy, A. ; Dept. of Appl. Math., Western Ontario Univ., Canada ; Madhavji, N. ; Davison, M. ; Reesor, M.

Many researchers have emphasized the importance of documenting assumptions (As) underlying software requirements (Rs). However, As and Rs can change with time for reasons such as: (i) an A or R was elicited incorrectly and subsequently needs to be changed; (ii) operational domain changes induce changes in the A and R sets; and (iii) the change in validity of an A, or desirability of an R, respectively, causes the validity of another A or desirability of an R to change. In Section 2, we describe our model and how it works. To put such a model into practice, we need to consider at least two scenarios. One is intra-release cycle-time, where invalidity risk is predicted at the start of the project for times between the inception and completion of the project. This would give us intra-release risk trends. The second scenario is prediction over multiple releases. This would give us a risk trend over a longer period of time. The full paper describes an algorithm to cover both of these scenarios and gives an example (from a banking application) of how the model could apply in practice. Here, we consider only the first scenario due to limitation of space.

Published in:

Requirements Engineering, 2005. Proceedings. 13th IEEE International Conference on

Date of Conference:

29 Aug.-2 Sept. 2005