The Open University since 2006
Alternatively you can skip the navigation by pressing 'Enter'.
Thinking Allowed 2016: A special programme on Pierre BourdieuMonday, 27th June 2016 00:15 - BBC Radio 4This special episode of Thinking Allowed explores the ideas of French socialist Pierre Bourdieu. Read more: Thinking Allowed 2016: A special programme on Pierre Bourdieu
Genius of the Modern World: NietzscheAvailable until Friday, 29th July 2016 00:00Bettany Hughes takes us on an exploration of Friedrich Nietzsche's life and works. Read more: Genius of the Modern World: Nietzsche
The Big C & Me: Episode 2Available until Sunday, 24th July 2016 02:05
The Big C & Me: Episode 3Available until Friday, 22nd July 2016 23:55
Thinking Allowed 2016: A special programme on Pierre BourdieuAvailable for over a year
The UK votes out; the EU shrinks; the world reactsReaction from academics around the planet as UK voters elect to leave the E Read more: The UK votes out; the EU shrinks; the world reacts
Genius of the Modern WorldIn this three-part OU/BBC co-production for BBC Four, Bettany Hughes explores the life and works... Watch now: Genius of the Modern World
Grammar mattersGrammar matters because, combined with vocabulary choice, it is our main way of making meaning.... Try: Grammar matters now
Forensic psychologyIn this free course, Forensic psychology, you will discover how psychology can help obtain... Try: Forensic psychology now
Models are mechanisms for communication. This free course, Models and modelling, looks at what a model is and what the process of modelling is about. The techniques discussed here are applicable to a wide range of systems and have one thing in common: they are all commonly used diagramming techniques. The five techniques are: data flow diagrams, use case modelling, activity diagrams, entityrelationship diagrams and state machines.
After studying this course, you should be able to:
- explain why modelling plays a key role in eliciting requirements
- identify the different kinds of model used in eliciting requirements
- explain the need for modelling languages
- interpret a data flow diagram describing a simple process
- interpret a use case diagram describing a system's response to a business event.
- Current section: Introduction
- Learning outcomes
- 1 Models and modelling
- 2 Models
- 3 Modelling languages
- 4 Data flow diagrams
- 5 Four other diagramming techniques
- 6 Use cases and actvity diagrams
- 6.1 Use case modelling
- 6.2 Actors
- 6.3 Describing use cases
- 6.4 Scenarios
- 6.5 More about actors
- 6.6 Modelling the relationships between use cases
- 6.7 Stereotypes
- 6.8 Sharing behaviour between use cases
- 6.9 Alternatives to the main success scenario
- 6.10 To extend or include?
- 6.11 Issues with use cases
- 6.12 Self-assessment questions
- 6.13 Exercises
- 7 Modelling users' routines
- 8 Entity–relationship data modelling
- 9 An introduction to state machines
- Keep on learning
Study this free course
Enrol to access the full course, get recognition for the skills you learn, track your progress and on completion gain a statement of participation to demonstrate your learning to others. Make your learning visible!
Models and modelling
Models are mechanisms for communication. This course looks at what a model is and what the process of modelling is about. The techniques discussed here are applicable to a wide range of systems and have one thing in common: they are all commonly used diagramming techniques. The five techniques are: data flow diagrams, use case modelling, activity diagrams, entity–relationship diagrams and state machines.
This OpenLearn course provides a sample of postgraduate study in.
This free course includes adapted extracts from an Open University course which is no longer available to new students. If you found this interesting you could explore more free Computing and ICT courses or view the range of currently available OU Computing and ICT courses.
Copyright & revisions
Originally published: Friday, 15th July 2011
Last updated on: Monday, 22nd February 2016
- Creative-Commons: The Open University is proud to release this free course under a Creative Commons licence. However, any third-party materials featured within it are used with permission and are not ours to give away. These materials are not subject to the Creative Commons licence. See terms and conditions. Full details can be found in the Acknowledgements and our FAQs section.
- This site has Copy Reuse Tracking enabled - see our FAQs for more information.
If you enjoyed this, why not follow a feed to find out when we have new things like it? Choose an RSS feed from the list below. (Don't know what to do with RSS feeds?)
Remember, you can also make your own, personal feed by combining tags from around OpenLearn.
All our alternative formats are free for you to download, for more information about the different formats we offer please see our FAQs. The most frequently used are Word (for accessibility), PDF (for print) and ePub and Kindle to download to eReaders*.
- Word (1.1 MB)
- PDF (2.1 MB)
- ePub 2.0 (808 KB)
- RSS (359 KB)
- HTML (1.2 MB)
- OUXML Package (43 KB)
- OUXML File (156 KB)
*Please note you will need an ePub and Mobi reader for these formats.