Menu
Home
People
Places
Arts
History
Plants & Animals
Science
Life & Culture
Technology
Reference.org
Engineering change order
open-in-new
<p>An engineering change order (ECO), also called an engineering change notice (ECN), engineering change (EC), or engineering release notice(ERN), 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. </p><p>The need for an engineering change may be triggered by a number of events and varies by industry. Typical engineering change categories are: </p> <ul><li>Product Evolution - a change resulting in applying an existing part to a new application and maintaining backwards compatibility</li> <li>Cost Reduction - a change resulting in lower overall cost to produce or maintain</li> <li>Product Performance - a change that improves the capabilities of the item</li> <li>Safety - a change required to enhance the safety to those using or interacting with the item</li></ul>