1. Optimizing value in construction

16% of on-site operations create value for the customer (what he pays for). For example, the time it takes to set a poured concrete slab brings no value to the customer (who expects a functional slab ready to receive other equipment). The first step in Lean is to reference all the tasks directly linked to value for the customer, in order to bring them to the fore (quality gain), and to optimize the other tasks to minimize their impact (cost/delivery gain).

The main objective of Lean is to clearly and objectively define execution-related tasks directly associated with a real customer need. Final acceptance will be based solely on the points of value on the site. The remaining 33% are tasks that have value but no real value for the customer (they participate in and are necessary for the completion of the 16% of tasks with value). The remaining 50% of tasks are purely...