Lesson 15. Manage data gaps

Once the issues have been collectively selected for assessment, the availability of data can strongly constrain the design of the assessment. If there is very little existing data on the chosen issue, the Triage process may conclude that data collection should be the main focus of the assessment. However, in most cases, the assessment should aim to re-use existing data rather than initiate primary data collection.

If primary data collection is carried out, it should be carefully designed to fill in key gaps in understanding the system. Missing data can be supplemented by expert advice or by using existing data as a proxy.

All data formats should be considered, not just numerical data. Some aspects can only be described by textual material. The assessment should explore ways of combining these different formats effectively. Remember that an important part is storytelling, and that the data should always be accompanied by a narrative.