According to Tim Bryce (Managing Director of M. Bryce & Associates),
If systems analysis is performed correctly, programmer productivity should improve as analysts should be providing good specifications for application assignments. In the absence of systems analysts, considerable time is lost by the programmer who has to second-guess what the end-user wants. Inevitably, this leads to rewriting software over and over again. Good data and processing specs, as provided by a systems analyst, will improve programmer productivity far better than any programming tool or technique. This means programmers are the beneficiaries of good systems analysis.
This brings up an interesting point, what should be the ratio of Systems Analysts to Programmers in a development organization? Frankly, I believe there should be twice as many analysts than programmers. By concentrating on the upfront work, programming is simplified.
Source: Bryce, Tim, “The Ratio of Analysts to Programmers”, Toolbox for IT, August 24, 2006.