Assignments chapter 3

• How is a DBMS distinguished from a file-based system?

There are no concurrency issues, data redundancy or integrity problems.

• What is data independence and why is it important?

De seperation of data description and metadata from application programs, because of this you can change isolated parts and you don’t have to change things in ither keveks too.

• What is the purpose of managing information?

Having quick acces to important or useful data when needed.

• Discuss the uses of databases in a business environment.

By using databases in a buisness environment you are able to create clear tables and files. This is important, for example when handeling oreders or transactions with money.

• What is metadata?

Data describing data.