RDLs' Interactions with Other Practices
Nearly all of the general guidelines for using productivity tools (Chapter 15) apply to RDLs.
RDLs provide schedule-reduction leverage because of their ability to reduce construction time. Because they reduce construction time so much, they also make new kinds of lifecycle models possible. If switching from a 3GL to an RDL cuts detailed design and coding effort by 75 percent (which is a good rule of thumb), that will significantly reduce the amount of time between iterations in an iterative lifecycle model. An iteration that takes 2 months in C might be cut to as little as 2 weeks in Visual Basic. The difference in those two time periods is the difference between customers or end-users seeing you as responsive ...
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