Aim:

1. To enable students to select and justify the choice of appropriate input/output devices and communication styles for interactive systems.
2. To enable students to analyze and design usable interfaces.

Learning outcomes:

1. Explain and justify the need for good HCR practice.

2. Discuss the role of cognitive psychology in the design of user interfaces.

3. Select appropriate communication styles for interactive systems.

4. Perform user modelling and task analysis in the context of user interface design.

Your task is to design an iPad app, called iCOPE which will allow older users (with possible physical and cognitive impairments due to age) to interact with on-line shopping sites in a clear, simple, personalized and consistent way.

You must choose 3 shopping sites e.g. Tesco, Amazon, Debenhams, and design an interface which would enable a user to perform typical on-line shopping activities via a common interface. Such activities include, but are not limited to:

• Searching and browsing
• Adding and removing from a cart/basket
• Checking out and payment (assume that all personal and banking details are already in the system)

It is important that although the interface is consistent, each company's image and ethos must be maintained. The users should be given a shopping experience appropriate to the one projected by the company.

You are also expected to demonstrate an alternative screen design for a user with a visual impairment beyond the usability level appropriate for your main design. What would you do to make your app accessible for them?