title: Are there any workflow engines in existence that don't use BPMN and BPEL?
body: <p>Our business is planning on building a rather large business application with about 2000 or so users.</p>
  
  <p>Many objects in the system require a mildly complex series of approvals, notifications, etc.</p>
  
  <p>For various reasons, our company has decided to reject formal use of BPMN or BPEL.  What I am looking for is a workflow engine that I can pass these objects to as a means of facilitating, tracking, and managing the state of these objects.  We are implementing this project using EJB 3.1 with a WebSphere AS.</p>
  
  <p>Am I correct in my understanding of a workflow engine? Everything seems tied to BPMN or BPEL...am I just missing something here as to why most solutions seem to implement BPMN or BPEL?  Some advice would be wonderful!</p>