ABSTRACT
Ten common benefits of a Lean deployment are listed in Table 6.2. e first key benefit listed in Table 6.2 is higher customer on-time delivery (schedule attainment). A simple and standardized system will tend to execute its delivery schedule more consistently than one that is more complex and exhibits a high degree of process variation. Value stream mapping (VSM) is a very useful tool in identifying work tasks that do not have value. is information is used to eliminate the relative percentage of non-value-adding work within a process workflow. e elimination of non-value-adding (NVA) work tasks will increase the percentage of
Table 6.1 Competitive World Metrics: Value Flow
value-adding (VA) to NVA time in a workflow. Also, a higher throughput of materials or information can be achieved as a process is simplified, standardized, and mistake-proofed. roughput is also positively impacted by reductions in overall cycle time and inventory. Using a VSM to identify operations that constrain the flow of materials or information through a process, i.e., bottlenecks, allows a VSM team to focus Lean tools and methods to increase the available time of a system’s bottleneck. ese Lean improvements are usually seen as faster machine throughputs, or less time for job changeovers (especially at the system’s bottleneck resource), higher machine uptime (available time), and higher quality of work (reduced scrap, rework, warranty, and returns). Additional benefits of Lean deployments are less floor space utilized, lower system inventory, and lower overall system cost.
