1. A method of managing a plurality of processes in a repository of a computer system, the method comprising: summarizing a collection of processes stored in the repository of the computer system, wherein summarizing comprises summarizing content included in process descriptions of the plurality of processes in the repository, wherein summarizing comprises: forming a difference model comprising one or more features that are used to discern differences between processes in the collection of processes, wherein the one or more features include one or more semantic features that describe what a process does; forming a priority model that represents a priority among the one or more features of the difference model, wherein the priority of a given feature is indicative of a relative importance of the given feature in discerning differences between processes in the collection of processes; generating a content-based summary of the plurality of processes in the repository using the difference model and the priority model, wherein generating a content-based summary comprises parsing the plurality of processes into components, using the difference model to identify parsed components of the plurality of processes which are associated with the one or more features of the difference model, computing distance measures between the identified parsed components of the plurality of processes, and processing the distance measures to generate the content-based summary; and organizing the plurality of processes in the repository of a computer system according to the content-based summary; wherein the summarizing, forming, generating, and organizing steps are implemented by a processor device.