2.2 Human Computer Interface

Use of Colour 

• The colours used should follow corporate colours, colours should not clash
• Colours should be visable for users who have a sight impediment
• The colours that are used should be able to trigger the memory of the user
• The number of colours used should be limited to four per a screen and seven for the whole sequence
• Colours can be used to code information but the end usrt must be able to understand the code and the colours should match the user's expectations
• Colours can be used to attract the user's attention. the most effective colours are white, yellow and red

Layout 

• All screens oof the HCL should have a consistent layout, following the house style or corporate image of the business
• The layout should follow that of the original source documents
• The layout of the information given and that to be input by the user should follow in a logical order
• The layout should include some white space
• Information that needs attending to immdiately should always be displayed in a prominent position
• A consistent layout will enable users to become familiar with the…