Today we learned about quality of data

As well as being:
accurate, up-to-date, complete,

Data must also be:
reliable
timely
accessible
relevant
understandable

Example of websites on quality of data

http://www.ed.gov/about/offices/list/os/technology/plan/2004/site/docs_and_pdf/Data_Quality_Audits_from_ESP_Solutions_Group.pdf