By Marco Mulder
Continuous improvement is a key principle of Scrum. Yet, though most Scrum teams conduct a sprint review and a retrospective at the end of each sprint, too many teams fail to implement the improvements they identify. In my experience, there are two common causes for this:
- Teams don’t have or maintain explicit standards for their product and process;
- Teams don't use the product backlog to schedule improvements.
Set a Dynamic Standard
A definition of done in Scrum defines general acceptance criteria to which all implemented features should adhere. This ensures that everyone has the same understanding of what it means for a feature to be “done.” Team members must all know these general acceptance criteria so that they know when they’re finished. The product owner and stakeholders need a definition of done so that they know what they can expect from the features delivered by the team. That does not mean, however, that the initial definition of done is the one you will want to use throughout the project's lifecycle. In fact, one of the reasons why an explicit definition of done is important is that it not only says what will be included in each feature, it also makes explicit what is not included. Some of the things not included may be planned additions later in the project.
