Original Date: 10/10/2005
Revision Date: / /
Best Practice : Circuit Card Assembly Metrics
Circuit Card Assembly Metrics is a web-based reporting tool that provides a central location for viewing manufacturing data to produce value stream graphs, eliminating manual data collection efforts and reducing cycle times from one week to one day. Twenty-four-hour snapshots of production data are gathered from a flat file generated by a legacy database.
In 2001 Raytheon developed Circuit Card Assembly (CCA) Metrics, a web-based reporting tool that has reduced cycle times from 1 week to 15 minutes. Raytheon takes 24-hour snapshots of production data gathered from a flat file generated by a legacy system to analyze data and turn it into information than can be displayed graphically (Figure 2-1). Metrics charts and detail data can easily be downloaded in Excel to a user’s local PC from a specified set of CCA value streams on a drop-down menu that serves as a central location for viewing manufacturing metrics data. Work-in-process (WIP) data is updated daily against manufacturing requirements for each value stream and program.
CCA Metrics is a corporate force multiplier that not only benefits Raytheon, but also its customers by facilitating data sharing. Web access to manufacturing data has eliminated the former manual method of data collection, attributing to cost savings of approximately $700,000 for the Andover facility. Future plans include the integration of this application into the fourth spiral of the Raytheon Web portal.
Figure 2-1. CCA Requirements Data Over A One-Year Period
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