Do column totals equal? Is information updated? Is the name spelled correctly? Is the address complete? Are there duplicate customers? Accurate Complete Consistent Timely Unique Is there an incorrect value in the data? Example: Is the name spelled correctly? Is the dollar amount recorded properly? Is a value missing from the data? Example: Is the address complete, including street, city, state, and zip cod Is aggregate or summary data in agreement with detailed data? Example: Do all total columns equal the true total of the individual item? Is the data current with respect to business needs? Example: Is information updated weekly, daily, or hourly? Is each transaction and event represented only once in the data