Purpose

The purpose of engineering change orders is to facilitate, and document, engineering changes.

Best Practice

Have fun.  Enjoy the activity.  Write down what you're doing.

ECO Contents

1. Design ID.

2. Engineer ID.

3. Date of Order.

4. Statement(s) of Change.  

Description of ECO Contents

Design ID

Part number.  Also consider including: part name, part description, part drawing, etc.

Engineer ID

Engineer's name.  Also consider including: engineer's title, engineer's group, and engineer's contact information.

Date of Order

YYYYMMDD, or DDMMMYYYY.

Statement(s) of Change

This is the meat-n-potatoes of the ECO.

For each change, the ECO should state:

4. 1. Change.  In one or two sentences, say what is being changed.

   2. Risk.  In three sentences or less, say what risks are relevant to the change.  If a risk (increase) is significant, state how the risk is being mitigated.  If no relevant risks are significant, state "this change has no significant risks."

   3. Plan.  In as few sentences as possible, say what is planned regarding this change.  List all testing and results if complete.  List all documents (e.g. drawings, requirements and specifications, etc.) that will be updated.  If the plan is documented elsewhere, reference the plan.