Achieving a balance between the quality characteristics that need to be addressed during the development of a software product may determine the success of a software project. However, few software organizations deal with interactions between the quality characteristics that could be present in a software project. In order to support organizations, we have developed a process framework, SQIMF,
... [Show full abstract] which can be used to manage this type of interactions. In this work we describe one of the SQIMF processes - that which is employed to monitor product quality requirements - in order to support software organizations as regards identifying interactions between quality requirements, in addition to characterizing them and identifying relevant contextual factors. An exploratory case study was conducted in order to initiate the validation of the proposed process, as the result of which we found interactions between usability and security during the inception phase of a software project.