Patterns for Data Migration Projects
نویسندگان
چکیده
First, you don’t know what exactly is in the legacy system. The older the legacy system is, the less likely it is that its original developers are still members of the development team or that they are at least available to support the data migration project. Additionally, even if the legacy system has been well documented in the beginning, you often cannot rely on the correctness and completeness of the documentation after years of change.
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