Case studies
Two projects, one approach: get the source back, write down what it does today, prove it with tests, then fix what the proof exposes.
A nightly Epicor import ran for years from a compiled assembly with no source, no version control and no documentation. We recovered it, documented it, tested it against real data, fixed 20 defects, and moved it to Dynamics 365 Online.
20 defects fixed · 207 offline tests · 52,042 rows of real data
Read the case studyWe refactored a widely used open-source set of custom workflow activities, then proved with an automated before-and-after test that existing workflows behaved the same after the upgrade.
96 activities · 79 covered by the upgrade test · 354 automated tests
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