What is DFD and its levels?

Related questions

1. What are the characteristics of Level 0 DFD?
2. What DFD 0?
3. What is a Level 1 DFD?
4. What is a Level 0 DFD?
5. What is the difference between DFD and context diagram?
6. What are the symbols used in DFD?
7. What is the purpose of DFD?
8. What are the types of data flow diagram?
9. What is Level 1 Data Flow Diagram?
10. What is level 1 in data flow diagram?

Tags

1. #functional
2. #partitioned
3. #beyond
4. #drawn
5. #level
6. #higher
7. #different
8. #hacking
9. #diagram
10. #represent
11. #abstraction
12. #system
13. #numbered
14. #software
15. #engineering
16. #information
17. #elements
18. #levels