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Management Information Systems (MIS) · Module 3 of 10

Data, databases and data quality

Storing data so it can be trusted.

📖 Key ideas

  1. Organisations store data in databases, usually relational tables.
  2. A database management system (DBMS) controls storage, access and security.
  3. Good data is accurate, complete, consistent, timely and relevant.
  4. Duplicate and inconsistent records lead to wrong reports and decisions.
  5. Data governance sets who owns data and the rules for keeping it correct.
💡 Real-life example: Like a class attendance register: if two teachers keep separate registers that do not match, nobody knows the real attendance.
DBMSSoftware that manages databases
Data qualityHow accurate and usable data is
RedundancyThe same data stored in several places
Data governanceRules and ownership for data