mydbms

3. Various methods of building a system so that if something fails, other components pick up the load without losing the entire transaction or application.
4. Performing two (or more) operations on the same data at the same time. The DBMS must sequence the operations so that some of the changes are not lost.
6. A diagram that shows the associations (relationships)between business entities.
7. A database system that holds objects, including properties and methods. It supports links between objects,
9. Providing a verification system to determine who actually wrote a message. Common systems use a dual-key encryption system.
11. Software that defines a database, stores the data, supports a query language, produces reports, and creates data entry screens.

1. A data integrity constraint where data can be entered into a foreign key column only if the data value already exists in the base table
2. In a database application it is a set of changes that must all be made together.
5. The acronym for transactions that specifies the four required elements of a safe transaction: atomicity, consistency, isolation, and durability
8. A situation that exists when two (or more) processes each have a lock on a piece of data that the other one needs.
10. inheritance