EML2322L-Engineering Change Notice

EML2322L-Engineering Change Notice - Engineering Change...

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Engineering Change Notice Definition An Engineering Change Notice (ECN) is a document authorizing and recording design changes throughout the prototyping and life-cycle phases of a product. ECN documentation contains the justification for changes made to a component or system once the initial design is complete. It also forces changes to be approved by the relevant authorities (often the project manager). An ECN must contain at least the following information (Ullman 2009): Identification of what needs to be changed. This should include the part number and name of the component and reference to drawings showing the component in detail or assembly. Reason(s) for the change. Description of the change. This includes a drawing of the component before and after the change. The drawings must clearly show the detail(s) affected by the change. List of documents (and in industry, the departments) affected by the change. The most important part of making a change is ensuring all pertinent groups are notified and all documents updated. Approval of the change. As with the detail and assembly drawings, the changes must be approved by management. Instruction about when to introduce the change—immediately (scrapping current inventory), during the next production run, or at some other milestone. Application for EML2322L On any engineering project, the design work should conclude before manufacturing commences. Sometimes we rush through the design phase because we are excited to begin fabrication. Design changes made in the manufacturing phase are much more costly than changes made during the initial design phase. To encourage groups to do the best job possible during the initial design phase, teams must fill out an ECN for any change(s) made once the second design report is formally submitted. For
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EML2322L-Engineering Change Notice - Engineering Change...

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