Look past that. This is super useful - high scale services often have loosely coupled services which pass data from one stage to the other and act on it based o

Look past that. This is super useful - high scale services often have loosely coupled services which pass data from one stage to the other and act on it based on various decision factors. Almost everyone I know invents their own mechanism for gluing these things together - the SWF seems super useful there. Windows Azure (my former team) actually tried to do this with Azure Workflow Services several years ago, but that got killed around a year into it's existence.