“…The DaCapo and later the META-Frame Tool can be regarded as first service-oriented environments where tool building blocks could be graphically composed into workflows [77,111,121]. After an industrial project with Siemens Nixdorf in 1995/96, where this tool was applied to construct a service definition environment for value-added services that has subsequently been sold to over 30 Telecoms world-wide [19,107], the META-Frame tool was again renamed, now to Application Building Center (ABC), and later on re-implemented as the jABC tool in Java since 2003 and applied in numerous industrial and scientific projects (such as [9,10,40,52,73,95]). Driving forces for the further development were the scientific workflow projects reported in more detail in the course of this paper.…”