Migrating from legacy HL7 technology to Iguana


So you’ve just started as the interface guy at a new company. They just buried the last interface manager six feet under and you are the lucky guy that got to inherit a rich software legacy of over 30 point to point interfaces implemented in a ‘mashup’ of Powerbuilder, perl and DOS batch files than only run on a 16 bit windows 3.1 machine.

The last time source code was seen was 1999 and it doesn’t bear any resemblance to what is running in production today…

Not only do you have maintain all this but you are under pressure to deliver new functionality at the same time.

So other than polishing up your resume to find another job, what are some practical ways you can go about improving the situation? This section outlines some steps you can take make things work better.

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