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> We wanted to be in charge of this system, and we work in C#.

What was the estimated cost of developers being literate in more than one language? How significant was this in the decision?

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I don't think it had a visible cost in our case. For starters, my team understood the system adequately to not need to reference the original source code so closely. (Much of the work happened before even beginning to read the original source code.) Secondly, we all had enough Java exposure to be comfortable porting behavior over when it was needed.

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