Answer: Constraint
Step-by-step explanation: Constraint is the term that is used for maintaining the integrity of the information that is being enter in the system.The constraints act as a collection of rules that implies on the data. They maintain the integrity of the data by the keeping attention functions such as the updating of data, insertion of data etc do not alter the information quality .Thus constraint s work on the collection of the data in a system for the maintenance and quality factor.