The Bottom Line on RDLs
As suggested by Tables Table 31-1 and Table 31-2, the bottom line on RDLs is that the specific savings you can expect depends both on the specific language you're using now and on the specific RDL you switch to. It also depends on whether the kind of program you need to build is the kind the RDL is good at building. If you're currently using a 3GL, you can probably expect to cut construction effort by about 75 percent when you switch to an RDL. That amount will continue to improve as new and improved languages become available—but it probably won't improve as quickly as tool vendors will want you to believe!
If you can't switch ...
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