Enterprise Modelling (EM) is an activity where an integrated model describing different aspects of an enterprise is created. An enterprise model consists of a number of related “sub-models” or perspectives, each describing the enterprise from a particular view, for example, processes, business rules, goals, actors, and concepts/information/data. The purpose of using EM in the context of capability management is to capture and document the existing organizational design. The overall vision of capability management approaches, such as Capability-Driven Development (CDD), is to use (and update if necessary) the enterprise models that the organization already has for capability design. However, if an organization does not have existing models or their use is deemed impractical (e.g., they are severely out of date or the quality of models is below acceptable), new models need to be created. The chapter gives an introduction to the topic of Enterprise Modelling, including perspectives captured in enterprise models, a typical modelling process, and existing modelling methods.