SafiServer is an engine that powers the applications (called Saflets) created using SafiWorkshop. SafiServer uses these applications to control communications (i.e. Asterisk) along with a multitude of other applications (database, email, etc).
Process flow designer that creates applications (Saflets) for us in the SafiServer engine. SafiWorkshop is used for the design, real time debugging and deployment of advanced flow based applications. Currently tailored for use with Asterisk PBX.