Normalization Problems and Solutions › Common Design Problems

Common Design Problems

Many common design problems are a result of violating one of the normal forms. Common problems include:

• Repeating data groups
• Multiple use of the same attribute
• Multiple occurrences of the same fact
• Conflicting facts
• Derived attributes
• Missing information

When you work on eliminating design problems, the use of sample instance data can be invaluable in discovering many normalization errors.