Manufacturing has since the 1930s been commonly understood as a set of linked processes, each adding value to deliver an end output to a customer. This insight provides powerful insights into the way work is done and how it can be improved.  More recently, we have seen that this processes model of work is equally applicable to service businesses. Hirsch Technical Ltd has extensive experience. In analysing and mapping work processes and using modelling techniques to design and implement improvements. This work has provided objective evidence for decision making and resulted in significant cost savings and efficiency improvements while at the same time improving the quality of the work.