This paper introduces a framework for classifying and comparing three domains related to the process technology. More particularly, it gives process definitions, characteristics, modeling objectives, process model constituents, process context and scope proper to the Software Process Engineering (SPE), Business Process Management (BPM) and Workflow Management (WfM) domains. It also tends to clarify the relationship between these three process domains. Relationship, which is still a source of ambiguities for many process managers and company's deciders in their choices of the appropriate process technology that will stratify their process modeling goals.