Marie
It depends on where you're coming from!
Might I suggest that there's a difference between single switches (1DF on/off) and multiple switches like the TASH wafer, star, rocker & penta, QED seesaw (nDF on/off). I would have thought that the switch joysticks fit here.
Although if you're looking for something with the physical shape of a joystick, it might not matter too much whether it's switch or proportional.
Barry Taylor, Clinical Scientist
Bioengineering Department
Tulley Medical Physics Building, Hull Royal Infirmary
Anlaby Road, Hull HU3 2JZ
Tel 01482 675928, fax 01482 675750
-----Original Message-----
From: Marie Kelman [mailto:[log in to unmask]]
Sent: 15 April 2004 11:50
To: [log in to unmask]
Subject: Definition of a joystick and switch
We are looking to categorise mice, joysticks and switches on a database. The
definition we currently have is:
1. Switch - a single degree of freedom control which may be on/off or
proportional.
2. Joystick - A multiple degree of freedom controller which may be on/off
or proportional.
However, it may be more appropriate to categorise as follows:
1. Switch - an on/off device which has one or more degrees of freedom.
2. Joystick - a proportional device with multiple degrees of freedom.
The first definition would classify the TASH mini joystick as a 'joystick'
while the second would classify it as a 'switch' as in the TASH catalogue.
I ask this so that when someone uses the database to search for a switch or
joystick they will see the correct devices listed.
Best regards,
Dr. Marie Kelman
Research and Development Manager
Foundation for Assistive Technology
12 City Forum
250 City Road
London EC1V 8AF
Tel: 020 7253 3303
Fax: 020 7253 5990
http://www.fastuk.org
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