Process models constitute valuable artifacts for organizations. A process model formally
captures the way an organization works internally and interacts with its customers and
partners. Over time, more models may be created as business practices evolve (leading to
different versions of models) or an organization expands, eg, through mergers or
acquisitions. It is not uncommon for large organizations to have to manage thousands of
process models. Retrieval of process models with desired properties then poses a …