Information Quality Cluster – Use Case Development Working Session


The Information Quality Cluster’s objective is to bring together people from various disciplines to assess aspects of quality of Earth science data. During July through December 2015, the IQC has discussed an approach for developing and collecting use cases. Use cases provide a framework to identify specific needs of users regarding expressing information on data quality, and have proven useful in developing recommendations to meet those needs in the NASA Earth Science Data System environment. The IQC is planning to broaden consideration of use cases to include uses of data provided by other ESIP Federation members as well.

This session is a follow-on to the earlier session titled "Information Quality Cluster - Introduction, Reporting and Use Case Tutorial." The purpose of this session is to develop a number of use cases, employing a template developed by NASA's Data Quality Working Group during 2014-2015 and adopted by the IQC with some modifications during July-Nov. 2015.

Agenda (draft)

  • Introduction - H. K. Ramapriyan – 5*
  • Identification of use cases – All – 10
  • Breakout for developing use cases – Bob Downs – 5
  • Develop use cases in small groups – All – 55
  • Report Back to full group – one from each group – 15

*Numbers indicate minutes assigned to each agenda item


This is the second of two sessions of the Information Quality Cluster. The first session provided introduction to current activities of the cluster and a tutorial on developing use cases.

·      Rama: goal of sessions is to collect as many use cases as we can to move forward.

·      Rama: purpose of use case is to perform analysis of community needs to see what can be improved upon or optimized to meet the needs of the community.

·      Emily: (question) Is there a template for folks to follow for the use case.

  • Rama: Yes there is.

·      Emily: would be good to have a persistent location on the ESIP wiki site containing examples of use cases following the IQC use case template.

·      Bob: Was thinking about a use case for an integrated data product using inputs from multiple data sources. The problem would be, for this product, we would want to make some assumptions about its quality if we were going to use it. This is a problem because it’s a product that contains input from multiple datasets. This can pertain to all types of data sources, including satellite, in situ, airborne, etc…

·      Peng: developing a use case now. Title is “Appropriate amount of documentation for data use”.

·      Bob: one way to think about this is to think about how data quality information in the end could help facilitate the use of the data; for the use case you can reverse this and think about a situation in which you don’t necessarily have the data quality information that you would want.

·      Dan: situations arise in which data quality issues from one data source cascades into data products derived down stream. Relates to what Bob mentioned earlier.

·      Chung-Lin: Two-fold purpose of use case: 1) we already know what the data quality should be, so we need help getting the data to that point; 2) provide us with new information that we didn’t see before.

·       Bob: proposing just one breakout group to develop one use case collectively.

  • Peng is also in the process of developing her own use case.

  • We also have a developed use case provided by Sophie.

  • Peng’s use case has been completed in a spreadsheet.

  • The “Rice Cooker” use case is available and still modifiable, but Sophie will need to grant access to that.
K., H.; Peng, G.; Moroni, D.; Information Quality Cluster – Use Case Development Working Session; Winter Meeting 2016. ESIP Commons , October 2015