Q. How does quality data in a data warehouse contribute to improved productivity?

View solution

Q. Why is reliable strategic decision-making essential in a data warehouse?

View solution

Q. What is the potential issue with old product codes when used in a data warehouse that stores historical data?

View solution

Q. What is the result of the unofficial use of fields in data records?

View solution

Q. What is a common issue with cryptic values in old legacy systems?

View solution

Q. Which of the following is a violation of a basic business rule in a personnel and payroll system?

View solution

Q. What is the problem with reused primary keys when capturing data in a data warehouse?

View solution

Q. When identifiers for product codes are different in various systems, what problem does this cause?

View solution

Q. What is the issue with inconsistent values for policy types in different legacy systems?

View solution

Q. What problem is associated with multipurpose fields that can be used differently by various departments?

View solution

Q. What integration issues arise in an auction company when the same customer is both a buyer and a seller?

View solution

Q. Why do integration problems often arise in legacy systems?

View solution

Q. What is the primary goal of data cleansing for a data warehouse?

View solution

Q. Where does data pollution typically occur in the context of a data warehouse?

View solution

Q. Why is it challenging to address data pollution problems from old operational systems?

View solution

Q. How does data aging affect data quality in source systems?

View solution

Q. What is a potential issue related to heterogeneous system integration in the context of data quality?

View solution

Q. How does a good database design contribute to data quality?

View solution

Q. What is the role of entity integrity and referential integrity rules in preventing data pollution?

View solution

Q. What can be a result of incomplete information at the time of data entry for an entity?

View solution