please any 4 questions 80 words each references no plagarism

Create a thread and answer 4 of the following questions 
Enter your name as the Subject
Enter the question # you have chose at the start of each answer so that others know what question you have chosen. (i.e. Q2, Q4, Q5,Q6)

1. Describe a Data Dictionary and Data Repository.
2. Describe how data is represented (data type).
3. What are Process Specifications?
4. What is Structured English?
5. What are Structured Decision Analysis Techniques?
6. What is Business Process Management?
7. What is Business Process Re-engineering / Improvement?
8. Describe Decision Tables and Decision Trees.
9. What are Object-Oriented Concepts
10. What is Use Case Modeling and UML
11. What is an Activity Diagram - what would it look like when documenting the activities in Washing a Car or Fast-Food Purchases?
12. What is a Sequence Diagram - what would it look like when documenting the sequences in Washing a Car or Fast-Food Purchases?
13. What is a Communication/Collaboration Diagram - what would it look like when documenting the communications between players when Washing a Car or Fast-Food Purchases?
14. What is an StateChart Diagram?