The document discusses principles of user-centered design for developing products. It states that the requirements of the intended users should be determined by discussing users' needs and analyzing existing systems to identify problems. In developing a product, a variety of representations or models should be created and tested until a suitable design is produced. These models can be used to test ideas and make predictions about how users will interact with the product. The document advises that when developing a learning package, the requirements should first be determined by examining other packages, and analyzing the needs and abilities of the intended users/learners.

1. Principles of User-Centred Design

2. Requirement of the product Things to consider: discussing the needs of the people (user/learners) who will use the product. Cooperative design Participatory design Contextual design analyzing any existing systems to discover the problems of current design

3. Development of the product Things to consider: producing a variety of representations until a suitable artefact is produced. Eg. Range of representations is called models 1. The wind tunnel experiments show models being used to test ideas 2. The computer model is used to make predictions

4. Development of the product Requirement of the product Things to consider: 1. discussing the needs of the people (user/learners) who will use the product. .analyzing any existing systems to discover the problems of current design Things to consider: 3. producing a variety of representations until a suitable artefact is produced. (Visualize what users need to do) Product Eg. Range of representations is called models 1. The wind tunnel experiments show models being used to test ideas 2. The computer model is used to make predictions

5. Note: Excerpt from “ Interactivity by Design” Figure 10-1 Many of the early sketches of Timmy © Simon, M (2003) p. 53

6. THINK A. i) An ability to interpret map in geography the learner should …………….. (list of abilities) B. Create and interpret the representation according your subject area and write a statement that describe your model. (You may want to use diagram to describe your model). Things to consider in describing the model is a TASK DIY If you were to develop a learning package, you would first determine the requirements by critically examining other packages and analysing the intended user/learner’s needs and abilities.

7. Document 1 & 2 Document 1 Analyze the User Task (UT) and User Action(UA) on any possible gadget/machine Document 2 Identify subject area & target audience Identify topics and sub-topics