ETR 051 : 20001
Current
The latest, up-to-date edition.
HUMAN FACTORS (HF) - USABILITY CHECKLIST FOR TELEPHONES BASIC REQUIREMENTS
Hardcopy , PDF
English
Foreword
1 Scope
2 References
3 The usability component model
4 Usability checklist framework
4.1 Context of use
4.2 Intended usage
4.3 Intended users
4.4 Environmental requirements for use.
5 Identification of usability components
6 The usability checklist
6.1 Statement 1: Size and shape of the handset
6.2 Statement 2: Weight and balance of the handset
6.3 Statement 3: Physical dimensions of dial/key pad
6.4 Statement 4: Acoustic level of signalling tones
6.5 Statement 5: Electro-acoustic sensitivity for sending
and receiving
6.6 Statement 6: Sidetone attenuation
6.7 Statement 7: Size of numbers and letters on dial/push
buttons
6.8 Statement 8: Key pad lay-out
6.9 Statement 9: Push button operation feed-back
6.10 Statement 10: Incoming call indication
6.11 Statement 11: Answering and terminating a call
Annex A (informative): Usability checklist for telephones - list
of additional information
History
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