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Foundations of Programming

by Karl Seguin

Goals

  • Maintainability
    • Simplicity
    • YAGNI (from XP)
    • Last Responsible Moment
    • DRY (Object encapsulation and highly cohesive code can help us reduce duplication)
    • Explicitness and Cohesion
    • Coupling
    • Unit Tests and Continuous Integration

Domain Driven Design

focuses on the problem domain as a whole, which not only includes the data, but also the behavior. So we not only focus on the fact that an employee has a FirstName, but also on the fact that he or she can get a Raise.

  • Users, Clients and Stakeholders
    • the ultimate measure of a system's success will likely be how users feel about it.
  • The Domain Object