STEP 3.2: DATA MIGRATION TESTING

Once again I am going to say at this point that I am not going to try to teach you about the different stages of testing. Not least because testing strategies and quality assurance in general have filled more pages in more volumes than I can do justice to here. I am anticipating that the probable reader of this book will be as familiar with testing as I am.

So if we are all so good at testing why is it that so many projects have problems with the final, migrated, result? Usually after it is in production?

Hopefully I will have answered some of questions above. Typically we get it wrong because:

  • we make assumptions about the data sources;

  • we make assumptions about data quality;

  • we make assumptions about what is ...

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