Teach-ICT A2 Level ICT OCR exam board - entity relationship diagrams (ERD), state transition diagrams, Data Flow Diagrams (DFD), flowcharts

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What its about

THEORY

Introduction

1. Introduction

modelling data and systems

2. Modelling data & systems

entity relationship diagrams

3. Entity Relationship Diagram

entity relationship diagrams

4. ERD continued

entity relationship diagrams

5. ERD continued

state transition diagrams

6. State Transition Diagrams

state transition diagrams

7. State Transition Diagrams

state transition diagrams

8. State Transition Diagrams

state transition diagrams

9. State Transition Diagrams

Data Flow Diagrams

10. Data Flow Diagrams

Data Flow Diagrams

11. Data Flow Diagrams

Data Flow Diagrams

12. Data Flow Diagrams

Data Flow Diagrams

13. Data Flow Diagrams

Data Flow Diagrams

14. Data Flow Diagrams

Data Flow Diagrams

15. Data Flow Diagrams

Data Flow Diagrams

16. Data Flow Diagrams

Data Flow Diagrams

17. Data Flow Diagrams

Flow Charts

18. Flow Charts

Flow Charts

19. Flow Charts

Flow Charts

20. Flow Charts

Flow Charts

21. Flow Charts

Flow Charts

22. Flow Charts

Flow Charts

23. Flow Charts

Summary

8. State Transition Diagrams (cont)

Door system state transition diagram

Two state diagram of door

Notice that you can have more than one event causing a transition between states.

challenge see if you can find out one extra fact on this topic that we haven't already told you

Click on this link: Creating State transition diagrams