The information flow among business
functions is defined by answering questions like what information drives the
business process, what information is generated, who generates it, where
does the information go, who process it and so on.
The information collected from business
modeling is refined into a set of data objects (entities) that are needed to
support the business. The attributes (character of each entity) are
identified and the relation between these data objects (entities) is
The data object defined in the data
modeling phase are transformed to achieve the information flow necessary to
implement a business function. Processing descriptions are created for
adding, modifying, deleting or retrieving a data object.
Automated tools are used to
facilitate construction of the software; even they use the 4th GL
Testing and Turn over:
Many of the programming
components have already been tested since RAD emphasis reuse. This reduces
overall testing time. But new components must be tested and all interfaces
must be fully exercised.