workflow-engine

For (application) server development with Delphi, I would like to use a workflow engine similar to the existing implementations for other programming languages (see http://en.wikipedia.org/wiki/Workflow_engine ). Is there already an implementation or should I better write my own? There is another one: Workflow studio from Tms Software http://www.tmssoftware.com/site/workflow.asp There's a commercial product Common Knowledge which incorporates workflow and business rules. 来源： https://stackoverflow.com/questions/3492725/is-there-a-workflow-engine-implementation-for-delphi

I'd like to know about specific problems you - the SO reader - have solved using Workflow Engines and what libraries/frameworks you used if you didn't roll your own. I'd also like to know when a Workflow Engine wasn't the best choice and if/how you chose something simpler, like a TaskList/WorkList/Task-Management type application using state machines. Questions: What problems have you used workflow engines to solve? What libraries/frameworks did you use? When did a simpler State Machine/Task Management like system suffice? Bonus: How did/do you make the distinction between Task Management and