Structured & Object Oriented Analysis & Design Methodology

Assignment – III

1. List advantages of using data flow approaches.
2. What is the difference between Logical DFD and Physical DFD?
3. Define Following terms
    (a) Event Response Table
    (b) Trigger
    (c) Base Element
    (d) Derived Element
    (e) Primitive Process
4. What is partitioning? List reasons for partitioning DFD.
5. Define the terms
    (a) Data Dictionary
    (b) Metadata
    (c) Data Repository
    (d) DTD
6. List need for understanding the Data Dictionary.
7. Explain with Example
   (a) Structured English
   (b) Decision Table
   (c) Decision Tree
8. Define Process Specification. List reasons for producing it.
9. What is horizontal balancing? Why it is desirable to balance each process?