ACM02DataQAssesment -Pipino

"Data Quality Assessment", L.Pipino, Y.Lee, R.Wang

Completeness can be defined as:

• schema completeness : entities and attributes are not missing from the schema
• column completeness : a function of missing values in a column of a table
• population completeness : given the set of values a column should have, count how many are missing
  

All can be measured as a ratio =1- #incomplet items/total #of items