Attributes are the equivalent of puzzle pieces that, when pulled together, form a complete picture. In an MDM database, attributes provide information about a member.

Examples of member attributes for a person can include name, phone number, address, Social Security or other personal identifier number, or date of birth. Object attribute examples can include company name, location, part numbers, or part manufacturer. As a whole, attributes define a member (for example, John Q. Public, 1043 W. Easy Street, Phoenix AZ).