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CHAPTER 2 THE PROCESS 33

FIGURE 2.6 Team #3
The RAD Team #2
Business
model modeling
Business
Data
Team #1 modeling modeling
Process
modeling
Business Data
modeling modeling Application
generation
Testing
&
Process turnover
modeling
Data
modeling
Application
generation
Process
modeling Testing
&
turnover

Application
generation

Testing
&
turnover

60–90 days

acteristics (called attributes) of each object are identified and the relationships between
these objects defined. Data modeling is considered in Chapter 12.
Process modeling. The data objects defined in the data modeling phase are trans-
formed to achieve the information flow necessary to implement a business function.
Processing descriptions are created for adding, modifying, deleting, or retrieving a
data object.
Application generation. RAD assumes the use of fourth generation techniques
(Section 2.10). Rather than creating software using conventional third generation
programming languages the RAD process works to reuse existing program compo-
nents (when possible) or create reusable components (when necessary). In all cases,
automated tools are used to facilitate construction of the software.
Testing and turnover. Since the RAD process emphasizes reuse, many of the pro-
gram components have already been tested. This reduces overall testing time. How-
ever, new components must be tested and all interfaces must be fully exercised.