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Practical Data Migration by Johny Morris

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10 GAP ANALYSIS AND MAPPING

In this chapter I will look at how the artefacts from the previous chapters help you overcome the challenges of data mapping and data gap fixing. I will also cover the ‘one-way street’ problem and the impact that it has on data lineage.

GAP ANALYSIS

The gap analysis and mapping (GAM) module is where the technical tools and techniques PDMv2 makes available to you to discover, analyse and quantify data gaps are documented. This is because, whether the data gaps appear in LA, GAM itself, the DQR process or even MDE, those tools and techniques should be consistent. From a practical perspective, when it comes to planning and staffing, the skills needed are best defined in one place. In this sense the gap analysis part ...

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