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Whenever you have a big change in your software environment (platform, personnel, or requirements) it's time to reexamine your past software development practices. What worked for a highly constrained platform isn't always the best fit for a less constrained platform. The processes needed for a small team don't usually fit a much larger team. The practices for an embedded system might no longer work if it moves to a web-based application. #donotfearchange
A good metrics program can help you to decide the direction needed for changes. Capers Jones' Applied Software Measurement has data showing what languages and processes are most productive for different sizes of projects and different development targets, but to really tailor your development, you need to collect your own metrics.