One of the common themes in this book is that data integration is not traditional application development, where in the development phase there is still a considerable amount of work in terms of coding.
In data integration, the bulk of the work is completed prior to what is considered traditional development. The “diamond” nature of the data integration development life cycle places the bulk of the effort in the design phases, as illustrated in Figure 11.1.
Figure 11.1. Application versus data integration development cycle
For the data integration Systems Development Life Cycle, the development phase ...