Requirement engineering is generally accepted to be the most critical and complex process within the development of socio-technical systems [3, 4, 5]. In this way, it helps to describe a multidisciplinary role of requirements engineering process as well as the patterns for social interaction. The main reason is that the requirements engineering process has the most dominant impact on the capabilities of the resulting product. Furthermore, requirements engineering is a process in which most diverse set of product demands from the most diverse set of stakeholders, which is already being considered by the practitioners. These two reasons make requirements engineering complex as well as critical.