Modelling the real life plays a significant role in Information Systems Development (ISD). There are several approaches that can be utilized, with different emphases on methods and notations. Some of them are well-known, like the traditional process modelling approach, while some newer ones are not widely known, like the Activity Driven Approach. In this paper we study modelling approaches in the early phases of ISD with two dimensions–the scope (technical–social) and the degree of structure–and create a map of modelling approaches. Traditional process modelling, socio-technical and Activity Driven approaches are located on the map in order to provide an overview of the approaches and their relations with each other.