The ongoing competitive situation requires of all companies a constant optimisation of the establishment of performance. Today, more than ever, the focus of lean management, the design of production systems and a supply chain is on the holistic optimisation of value streams across company boundaries. Value Stream Mapping is a simple technique for visualising the actual state in order to identify and analyse waste and potential for improvement in corporate processes. Based on this, the improved target state is then developed in the value stream design.
Value Stream Mapping is used to note and visualize the actual state of the process in detail. It is important to analyse the entire process and not just individual sub-steps of the process. For this purpose, all important figures, data and facts from the production processes as well as the material and information flow are included. The recording is visualised by simple symbols.
Value Stream Mapping is about the analysis of material and information flows with the goals:
Recording and conception of holistic value-producing processes:
Use of few, standardized symbols to represent the flows and process chains:
Use of current process data:
Transparency on waste:
Calculation of lead times and value added times
Detection of causes for waste and derivation of necessary implementation measures
Value Stream Design (builds on Value Stream Mapping and is used to redesign production towards an efficient and customer-oriented value stream. The result is a lean factory or a lean service operation. As with the value stream mapping, a diagram with corresponding symbols is used to visualise the desired improved state.
Value Stream Design is about the design of material and information flows with the goals:
Whereas value stream mapping was concerned with recording the current state, value stream design is used to
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