2 Comments

  1. Posted November 29, 2008 at 1:53 am | Permalink

    Very valid point Peter, although it would appear obvious that there is a clear relationship between DQ, DG and metadata, it often gets ignored.

    I think managing data quality at a metadata level is also important.

    I’ve seen companies create metadata in a one-off fashion but surely it should be monitored, measured and improved continuously as systems, processes and our business adapts.

    As ever, it depends on the type of metadata.

    Basic metadata such as structural or relationship information across entities can be very forgiving of defective data as even if the data is 20% incomplete or a relationship is invalid, the original metadata rules are still accurate.

    So I think the key is to combine our metadata rules with a traditional data quality management process. Metadata are simply another form of data quality rules after all.

    That way we can have a complete hierarchy from governance to metadata to current DQ. It’s a simple process to then validate precisely what hit our data is impacting on our metadata.

  2. Posted December 12, 2008 at 10:51 am | Permalink

    Dylan,

    You are absolutely correct. Accurate and consistent metadata definitions depend on having a mature data quality planning, design, and implementation process. The consequences of not having one include incorrect interpretations of the information used by business users which can result in increased regulatory fines, higher marketing spend, and customer dissatisfaction. Therefore, metadata provides the context for data quality and data quality processes support the ability to define accurate metadata. This symbiotic relationship is absolutely essential for successful data governance. Companies who ignore this position will continue to be exposed to incomplete and inaccurate information and will fail to meet their data governance objectives.

    Peter

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