Recently, the word accretion has been popping into my head quite a bit. I like it. It neatly describes the process by which a large software project can accumulate a mountain of legacy code. One little hack might not seem that bad when you’re doing it, but over time they build up.
Still, if working with legacy code can present difficulties, there’s always a silver lining to be had. Even a compromised design for new code can be a major improvement over what’s already there. Big gains can be relatively simple to come across. I used to dread working in legacy code at my last job, but these days, I’m learning to enjoy it. I may not have the comfort factor of unit tests, but development doesn’t have to be hell. Just managing to understand code can provide its own rewards. Today, I’m a happy bunny. :)
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