An engineering change order (ECO), also called an engineering change note, engineering change notice (ECN), or engineering change (EC), is an artifact used to implement changes to components or end products. The ECO is utilized to control and coordinate changes to product designs that evolve over time.
The need for an engineering change may be triggered by a number of events and varies by industry. Typical engineering change categories are:
Cost Reduction - a change resulting in lower overall cost to produce or maintainProduct Performance - a change that improves the capabilities of the itemSafety - a change required to enhance the safety to those using or interacting with the item reference
