Mission Critical Agile
Adopting agile practices for mission critical systems, creating a “insurance policy”:
- sustainable pace
- broccoli planning, using a season beat as well as a heart beat; use the season beat to deploy small releases (to mitigate risks and grow confidence and credibility); synchronize your releases and system integration tests to the season beat, not the other way around
- use the week out of time between any two consecutive season beats to celebrate and reflect on the previous beat and plan the next
- order the product backlog:
- broccoli governance, a.k.a. sociocracy—in fact, holacracy is the fruitful allegation of agile and sociocracy.
- test-driven development—evolve an ever growing test suite guarantees quality (also see Jini Community Pattern Language)
- continuous integration
- continuous deployment
- acceptance test-driven development using Gherkin language to specify acceptance criteria that can be tested automatically.
- vibrant personas
- persona teams
- customer on site
- scenarios define the wish
- gilb p-language
- behavior-driven development
- slash the code base and prune any code—smaller code bases are easier to grasp, contain less bugs; continuously refactor code using an ordered refactoring wish list.
- stable teams
- elegant design—simplicity, efficiency, consistency, completeness, coherence
- identify high-risk areas
- multidisciplinary teams
- cook a team
- pair programming to
- evolutionary prototype everything
- Use sacred ceremonies like sprint planning meeting, weekly product backlog grooming meeting, sprint review meeting, daily scrum meeting
- Drive the product backlog order by a shallow hierarchy of goals
- trunk only revisions minimizes or even eliminates the effort to merge, synchronize and coordinate branches and eases configuration management
- product owner formally accepts results
- foreign eyes audit quality—use an external party that reviews, audits, scrutinizes the product as a whole.
- Aim for low defect density, defined as the number of SIT (System Integration and Test) found defects per KLOC.
- Set a bug count ceiling and technical debt ceiling and make them come down.
- Define criticality class governs rigour (see http://artisansoftwareconsulting.com/blogs/?tag=agile-development)
- see sources at broccoli planning
Facts about "Mission Critical Agile"