evolutionary architecture and the Role of DDD

src: Evolutionary Architecture and the Role of DDD - Rebecca Parsons - DDD Europe 2024 - 2025-03-08

Abstract

How is long-term planning possible under constant change? An evolutionary architecture supports guided incremental change across multiple dimensions:

• 2 aspects of incremental change: application & operations
• dimensions: *ilities

Techniques:

• DDD
  • Our responsibility to help business people understand the technology consequences of the decisions that they are making.
  • Having the right language to do that is crucial.
  • Ubiquitous language
• database refactoring
  • Data migration is hard.
• Choreography
  • A choreograph system gives you more flexibility to move your boxes around because you don’t have to change the orchestrator every time you want to move the boxes around.
  • You don’t have to understand all the different impacts in the orchestrator are going to be if you move your box around.
• Contract testing
  • Need to have tests break and talk only to the right people, instead of having lots of meeting for contract changes.
• Continuous Delivery
  • You are confident you know you can roll back.
• Platform for Experimentation
• Culture for Experimentation
• Governance
• Fitness function driven
• Outcomes not implementations