␡
- Introduction
- 20.1 Programming and Iterative, Evolutionary Development
- 20.2 Mapping Designs to Code
- 20.3 Creating Class Definitions from DCDs
- 20.4 Creating Methods from Interaction Diagrams
- 20.5 Collection Classes in Code
- 20.6 Exceptions and Error Handling
- 20.7 Defining the Sale.makeLineItem Method
- 20.8 Order of Implementation
- 20.9 Test-Driven or Test-First Development
- 20.10 Summary of Mapping Designs to Code
- 20.11 Introduction to the NextGen POS Program Solution
- 20.12 Introduction to the Monopoly Program Solution
This chapter is from the book
20.8 Order of Implementation
This chapter is from the book
This chapter is from the book
This chapter is from the book
20.8 Order of Implementation
Classes need to be implemented (and ideally, fully unit tested) from least-coupled to most-coupled (see Figure 20.7). For example, possible first classes to implement are either Payment or ProductDescription; next are classes only dependent on the prior implementations—ProductCatalog or SalesLineItem.
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Figure 20.7 Possible order of class implementation and testing.