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Bonjour Mounir,
Thank you for your precious question, I hope the below narrative answer your question.
Value Engineering is a management technique that seeks the best functional balance between cost , reliability and performance of a product, project, process or service.
The value methodology works through a VE / VA / VM study that brings together a multidisciplinary team of people who own the problem and have the expertise to identify and solve it. A VM study team works under the direction of a facilitator who follows an established set of procedures - the VM job plan - to review the project, making sure the team understands customer requirements and develops a cost-effective solution.
Value Engineering is:
_ Systematic problem solving process
_ Multi-discipline team approach
_ Life-cycle cost oriented
_ Value oriented
_ Function-based analysis
_ Free of normal design restrictions
_ A proven management technique
Value Engineering is not:
A Design Review
• It is not intended to correct omissions in the design, nor to review calculations made by the designer.
A Cost Cutting Process
• It does not cut cost by sacrificing needed quality,reliability, or performance.
Routinely Done on all Designs
• It is not a part of the normal design process, but a formal cost and function analysis.
The VE job plan can be applied to any subject. It is a mechanism for guiding a study from inception to conclusion. By adhering to certain formalities, the VE job plan ensures that consideration is given to all necessary facets of the problem. Although the job plan divides the study into a distinct set of work elements, judgment is necessary to determine the depth to which each phase is performed as a function of the resources available, the results expected, and the people involved (often the most important determinant).