With the novel module PP-PI, the standard software SAP-R/3 offers the
opportunity to control and coordinate business processes on the plant
floor. The functionality of this module covers different working field
s such as material management, process order management or quality man
agement and it contains some elements of batch control. These function
alities are embedded in the business functions of SAP-R/3. SAP also of
fers standard interfaces to lower level systems, as DCS or LIMS. Altog
ether it may be considered as backbone of a Manufacturing Execution Sy
stem (MES) with a strong integration into the business world. In the a
pplication part of the contribution, experiences from implementation p
rojects in chemical production will be reported. In the more theoretic
al part, the relationships between the recipe-model of SAP-R/3 and of
ISA-S88 and the resulting application scenarios of PP-PI in batch cont
rol applications will be discussed. Also, general experiences with SAP
-implementations, which are critical for the success of an MES-project
with SAP, will be reported. Finally, a future MES-scenario will be di
scussed. As the backbone of a manufacturing execution system SAP will
cooperate with specialized, technically oriented subsystems, as for ex
ample SCADA systems, batch control systems, scheduling systems and LIM
S. (C) 1997 Published by Elsevier Science Ltd.