If you're running at a different cadence, someone is always falling behind.

If you’re running at a different cadence, someone is always falling behind.

The Scaled Agile Framework Enterprise (SAFe) uses the concept of a hierarchy to translate business strategy and needs to the work a Scrum team does on a daily basis. The hierarchy begins with value streams that are actualized by agile release trains (ART). ARTs are a long lived team of teams this is organized to deliver the support the value stream. While the value stream provides a goal and the ART the long term vehicle for the that support additional structure is needed before teams are set loose. As anyone that has watched teams interact knows, without structure shenanigans will ensue. The program increment provides a structure to connect the long term vision and the scrum teams. Program increments are similar to sprints, but at higher level.

The scrum teams within an ART use sprint cadence as a synchronization and motivational tool to develop solutions in a coordinated manner. Cadence provides short feedback cycles that provide focus. Program increments aggregate a fixed number of sprints together to peruse a common theme or goal such as a group of related features that might comprise one or more releases. The program increment process provides a framework to synchronize planning and development through group planning, group demonstrations and larger scale retrospectives. The program increment functions in much the same manner as the Sprint in Scrum. Here are the attributes of a program increment:

  1. Time-bound planning cycle. Program increments are typically 8 – 12 weeks, four two-week or three-week sprints.
  2. Common theme/goal. The program increment acts a container to focus development on the features and functions needed to deliver common theme or goal. The program increment and release plan do not have to synchronize. Using an example of a hypothetical customer facing website. A program increment could be focused of developing an integrated shopping cart solution with releases being made during the 8 – 12 weeks as major components reach done.  The mantra of SAFe and Agile development is, “develop to cadence, release on demand.” Said more bluntly, develop using sprints and program increments to provide cadence and synchronization and be ready to release when the business needs the functionality.
  3. Ceremonies demarcate program increments. Much like sprint planning and demonstrations and retrospectives mark the beginning and the ending of a sprint, program increments are bounded by ceremonies. The release planning meeting marks the beginning of the program increment and the “inspect and adapt cycle” marks the outer boundary.

A program increment is a time-boxed container with a common theme or goal that helps the multiple teams involved in an ART to stay synchronized. Teams further enhance their synchronicity by integrating frequently, participating in Scrum of Scrums, management dependencies as well as team and system-level demonstration. The duration of the program increment is often syncronized to release schedules and plan, however the two concepts do not have to be synonymous. Agile development is about building implementable functionality every sprint, the macro cadence of the program increment allows that functionality to be bundled into features which can be released as planned or as needed.

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