Metrics-based process mapping is a complementary, not a replacement tool, for value stream mapping. Creating a metrics-based process map is often a necessary step in documenting the details behind the value stream map and discovering the root cause of waste within specific value stream mapping process blocks. Metrics- Based Process Mapping: An Excel-Based Solution provides a unique approach to value stream mapping. It introduces the essentials of value stream mapping and offers access to an electronic tool that can help readers improve their value stream maps.