Data Quality Profiling and Assessment – Some Questions for the Client
Yesterday our company was approached to provide a proposal for a data quality assessment project as part of a more comprehensive data quality assurance effort. When we get these types of requests, I am always amused by the fact that key pieces of information necessary for determining the amount of work. We typically have some basic questions in order to scope the level of effort, including:
• What data sets are to be used as the basis for analysis?
• How many tables?
• How many data elements?
• How many records in each table?
• Are reference data sets available for the common value domains?
• How many business processes source data into the target data set?
• How many processes use the data in the target data set?
• What documentation is available for the data sets and the business processes?
• What tools are in place to analyze the data?
• Will the client provide access to the sources for analysis?
• How is the organization prepared to take actions based on the resultant findings?
In general, I like to think that my company is pretty good at doing these types of assessments – of course, I wrote the book (or at least, a book) on the topic ;-).