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Reverse engineer and replace. It turned out the green screens were pretty simple to grok where everything was either the non-editable display of a record or the
by 0x445442 7y ago
Reverse engineer and replace. It turned out the green screens were pretty simple to grok where everything was either the non-editable display of a record or the editable display of record. And the transitions from screen to screen were very deterministic so a one to one mapping of screens to web pages wasn't that difficult.
- jacobush 7y agoFrom which I infer that the database actually was at least remotely comprehensible? Or did you transition to a completely new system - new storage / database everything?
- 0x445442 7y agoThe new system was backed by an Oracle DB and that was provided, with schemas defined and another engineer was responsible for the ETL of the mainframe data to the Oracle DB. This was obviously helped a lot.