A data dictionary is created to define the contents of each data flow, each data store, each process to avoid ambiguity or confusion about what particular data is collected and stored.

What is a data dictionary?

A Data Dictionary is a collection of names, definitions, and attributes about data elements that are being used or captured in a database, information system, or part of a research project. … A Data Dictionary also provides metadata about data elements.

What is data dictionary in se?

A data dictionary in Software Engineering means a file or a set of files that includes a database’s metadata (hold records about other objects in the database), like data ownership, relationships of the data to another object, and some other data.