aqa ict for as © hodder education 2008 chapter 1 health and safety in relation to the use of ict...
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AQA ICT for AS © Hodder Education 2008
Chapter 1Health and safety in relation to the
use of ICT systems
AQA ICT for AS © Hodder Education 2008
Health problems
Regular use of ICT equipment over a long period of time may lead to:
• repetitive strain injury (RSI)
• eye strain
• back problems
AQA ICT for AS © Hodder Education 2008
Health problems
Incidence of these problems can be reduced by taking sensible precautions:
• not using equipment for too long
• introducing adjustable chairs
• using wrist supports and screen filters.
AQA ICT for AS © Hodder Education 2008
The law says
Employers must:• provide adjustable chairs• provide adjustable screens• provide anti-glare screen filters• pay for appropriate eye and eyesight tests• plan work so that there are breaks from the
screen• provide information and training for ICT
users.
AQA ICT for AS © Hodder Education 2008
Software design
Software designers should:
• have clear screen layouts
• use muted colour schemes
• have readable text
• create help facilities and error messages
• use keyboard short cuts
• not have annoying sounds and flashing images
AQA ICT for AS © Hodder Education 2008
Symptom, cause, prevention
For each health problem, you should be able to explain:
• Symptom – what happens to the user?
• Cause – what has caused it?
• Prevention – how can it be prevented?
AQA ICT for AS © Hodder Education 2008
RSI
• Symptom – pain, stiffness and swelling in wrists
• Cause – repeated movements (typing or using mouse)
• Prevention – breaks, wrist rests, ergonomic keyboard
AQA ICT for AS © Hodder Education 2008
Eye strain
• Symptom – sore eyes
• Cause – staring at a screen for a long period
• Prevention – breaks, focussing on distant objects occasionally, good lighting, no glare
AQA ICT for AS © Hodder Education 2008
Back pain
• Symptom – pain in back, neck, ankles
• Cause – awkward sitting position, bad posture
• Prevention – correctly adjusted chair