Lean & 5S' in Construction #18 - January 2007

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Lean & 5S' in Construction - Newsletter #18 - January 2007

***************** Attack Waste of Over Processing
OVER-PROCESSING: This waste happens when there are unnecessary or extra steps in the process or if steps that do not create value. The more steps in any process, the more chances for mistakes in processing. In construction this waste includes over-engineering, having to have someone’s’ signature on a requisition, multiple handling of timesheets, duplicate entries on forms or data-entry fields, and getting double and triple estimates from suppliers. Over-processing is caused by a lack of standard methods or processes, by poor communication and/or poor planning. Even when a standard process exists, this waste often occurs as the process slowly changes over time and it is not updated. A good way to detect this waste is to do a value stream, or even basic processes mapping, and look at all non-value added steps. Are these steps even necessary?