1. Define each of the following data dictionary notation symbols: =, + , [] , / , () , {} ,**.

2. What is an Elementary Data Element? How does it compare with a functional primitive?

3. Compare the advantages and disadvantages of each of the following process specification formats:

-Pseudocode

-Case

-Pre-Post Condition

-Matrix

4. What is an entity? How does it relate to a data store of a DFD?

5. What establishes a relationship between two entities?

6. Define the term "association".