Functional change impact analysis in use cases: An approach based on COSMIC functional size measurement

Evaluating Software Security Change Requests: A COSMIC-Based Quantification Approach

“…On the other hand, customers use software size to control their suppliers' price/performance, the delivered product quality, etc. In addition to its advantages compared to the first FSM generation methods, COSMIC has been successfully used for approximate sizing variants for use in early/rapid project estimation [11], guidance on how to deal with non-functional requirements (cf., [2], [12]), sizing functional change requests (cf., [9], [10]), and making decisions on software project development (cf., [21], [3]). Fig.…”

“…Compared to other FSM methods, COSMIC is designed to objectively measure the functional size of a change to software as well as the size of software that is added, changed or deleted [8]. In our previous studies (cf., [9], [10]), we used COSMIC to quantify requirements change requests that affect the functional user requirements. Based mainly on the functional size of the change, we evaluated the change status in order to identify changes that may lead to significant impact on the software development progress.…”

“…The main question that we address in this paper is: how change requests in system-NFR, in particular security requirements, affect the software development progress? Towards this end, we complement our COSMIC-based approach for functional change requests evaluation (i.e., change requests that affect software-FUR) proposed in [10] by evaluating technical change requests (i.e., change requests that affect system-NFR). We believe that the functional size of a technical change will certainly provide a more realistic evaluation of the change request, and hence a tighter estimate of the effort/resources needed to implement the change.…”

Analyzing Functional Changes in BPMN Models using COSMIC

“…FP) are identified, to the dynamic level where each process is decomposed into tasks. Indeed, the COSMIC-FSM method can be applied adequately in dynamic level where the sub-processes are identified (Haoues et al, 2016).…”

“…Compared to other FSM methods, COSMIC focuses on the "functionality" as described by the FUR and it can be applied at any phase of the software life-cycle. In particular, COSMIC can be applied in the requirement specification phase to predict the size of a software (Sellami and Ben-Abdallah, 2009), and the impact/cost of requirement changes (Haoues et al, 2016) which can assist in project management.…”