Pos system based on bpm 20

Can you suggest a pos system based on bpm 20? What is a simple and rock solid Point Of Sale (POS) application that has a flexible graphical interface and can easily be connected to different backoffice/ERP systems? I also need solutions to problems that range across a variety of topics: excessive diversity in the field of study, data quality and information system integration problems, lack of linkage to strategy, fundamental differences in how a strategy is formulated and executed, ill-defined metrics identification processes, and high levels of change in BPM systems.