What is DFD and its symbol?

Related questions

1. What are dynamic diagrams in UML?
2. What is the use of component diagram in UML?
3. What is UML and its features?
4. What is 2nd level DFD?
5. What are UML models?
6. Which software is used to draw DFD?
7. What is Sparx tool?
8. What is UML collaboration diagram?
9. What is a class diagram UML?
10. What is a logical flow diagram?

Tags

1. #instead
2. #flowchart
3. #defines
4. #external
5. #process
6. #control
7. #define
8. #graphical
9. #symbols
10. #entity
11. #differs
12. #through
13. #store
14. #problems
15. #system
16. #diagram
17. #representation
18. #program
19. #shows
20. #informative