Release 2023.1-rev0

New in 2023.1

Changes in "1. Domain, model, and ubiquitous language"

• Merged learning goal 1-3 into learning goal 1-2
• Changed learning goal 1-2: "Understand the role of domain-specific terminology in the construction of a ubiquitous language"
  • Redefined Ubiquitous Language
  • Add focus on formalization of the Ubiquitous Language and on the necessity to create it using a collaborative approach
• Changed ID of learning goal 1-4 to 1-3: "Know and be able to explain the building blocks of domain-driven design"
• Changed ID of learning goal 1-5 to 1-4: "Know and be able to explain the connections between the building blocks"

Changes in "2. The path to the model"

• Renamed chapter
• Added terms and principles: Agile and evolutionary modeling
• Changed learning goal 2-7: "Get an overview of Collaborative Modeling, its methods, and how it relates to DDD."
  • Focus is on common values and principles of Collaborative Modeling techniques
  • Event Storming is only one possible methods among others (Domain Story Telling, User Story Mapping)
  • Facilitiation of Event Storming is now part of learning goal 2-9
• Added learning goal 2-9: "Be able to conduct a collaborative modeling workshop"
• Added learning goal 2-10: "Understand agility as a foundation of DDD"

Changes in "3. From the model to implementation"

• Moved terms and principles to chapter 7:
  • CRC cards
• Changed learning goal 3-2: "Be able to model interfaces for domain classes"
  • Removed CRC cards: Moved to chapter 7

Changes in "4. The model in the application architecture"

• Renamed learning goal 4-1: "Be able to design a ports & adapter architecture for the domain model"
• Moved terms and principles to chapter 7:
  • Werkzeug- und Materialansatz (WAM)
• Changed learning goal 4-1: "Be able to design a ports & adapter architecture for the domain model"
  • Focus on ports & adapter as a collection of architecural approaches
  • Hexagonal architecure is only one style among others (Onion, Clean)
  • Remove details regarding hexagonal architecture
  • Remove CQRS: Moved to chapter 7
• Changed learning goal 4-2: "Be able to formulate correlations and distinctions between DDD and BDD"
  • Removed Werkzeug- und Materialansatz (WAM): Moved to chapter 7

Changes in "5. Cutting and distinguishing models from one another"

• Renamed chapter to focus on strategic design: "Strategic Design 1: Cutting and distinguishing models from one another"
• Removed from terms and principles:
  • Model consistency
• Moved terms and principles to chapter 6:
  • Shared Kernel
  • Customer/Supplier Teams
  • Open Host Service
  • Domain Event
• Added terms and principles:
  • Problem Space and Solution Space
  • Subdomain
  • Core vs supporting vs generic
• Changed ID of learning goal 5-3 to 5-5: "Be able to describe model boundaries of Bounded Contexts in a Context Map"
• Changed ID of learning goal 5-7 to 5-6: "Be able to use Domain Events as a means of communication between Bounded Contexts"
• Changed learing goal 5-2: Conway's Law has only descriptive properties
• Removed learning goal 5-4: Moved to learning goal 6-4
• Removed learning goal 5-5: Moved to learning goal 6-1
• Removed learning goal 5-6: Moved to learning goal 6-2
• Removed learning goal 5-7: Moved to learning goal 6-6
• Added learning goal 5-3: Be able to move on from problem to solution space
• Added learning goal 5-4: Distill the core

Changes in "6. Maintaining local model consistency"

• Renamed chapter to focus on context mapping: "Strategic Design 2: Context Mapping"
• Removed from terms and principles:
  • Continuous Integration
• Added terms and principles from chapter 5:
  • Shared Kernel
  • Customer/Supplier Teams
  • Open Host Service
  • Domain Event
• Removed learning goal 6-1: Continuous Integration
• Changed ID of learning goal 6-2 to 6-3: "Be able to isolate your own model from external influences"
• Changed ID of learning goal 6-3 to 6-5: "Understand the circumstances in which it is appropriate to divide the model (Separate Ways)"
• Added learning goal 6-1 (former 5-5): "Be able to use interfaces for customer/supplier teams"
• Added learning goal 6-2 (former 5-6): "Be able to design a system as an open host service (OHS)"
• Added learning goal 6-4 (former 5-4): "Be able to reuse core elements of several partial models in a shared kernel"
• Added learning goal 6-6 (former 5-7): "Be able to use Domain Events as a means of communication between Bounded Contexts"

Introduced "7. Related Topics"

• Add a new chapter with optional related topics which are not part of the core curriculum

Changes in "References"

• Updated list of references