Taxonomy

Taxonomy

From a note from David Wysocki on 2/23. Questions and comments under each section.

gc+sn = Gina Caldanaro and Sueann Nichols

Hardware Accessibility Interfaces

1 Electronic Interfaces

<gc+sn>Why the distinction between Electronic and Mechanical? There is some redundancy. 
Why not simplify the list to just Input and Output? Or should the text be changed to "mechanically and electronically 
operated controls and keys"? </gc+sn>

The current standard specifically states "mechanical" ... 
(a) All mechanically operated controls and keys shall comply with §1194.23 (k) (1) through(4).

1.1 Electronic Input

1.1.1 Human

1.1.1.1 Keyboard

Current standard statement covering this item is under "mechanical": 
(1) Controls and keys shall be tactilely discernible without activating the controls or keys.
(2) Controls and keys shall be operable with one hand and shall not require tight grasping, pinching, or twisting of the wrist. 
The force required to activate controls and keys shall be 5 lbs. (22.2 N) maximum.
(3) If key repeat is supported, the delay before repeat shall be adjustable to at least 2 seconds. 
Key repeat rate shall be adjustable to 2 seconds per character.
(b) If a product utilizes touchscreens or touch-operated controls, an input method shall be provided that 
complies with §1194.23 (k) (1) through (4).

<gc+sn>The reason we've added (b) is because a touchscreen or touch-operated control is a form of keyboard</gc+sn>

<gc+sn>Other than the marks on the F and J keys, what other tactile changes can be recommended or required?</gc+sn>

<gc+sn>Should keyboards be listed under "mechanical"? Why under "electronic"?</gc+sn>

<gc+sn>Refer to this article on "Keyboard technology" [1]
* Dome-switch or direct-switch keyboard (most commonly used in mass market today). 
* Dome Membrane switch keyboard (most common on desktop computers)
* Scissor-switch keyboard (used mainly on laptops)
* Capacitive keyboard (common in PC keyboards)
* Mechanical-switch keyboards (more expensive than membrane keyboards)
* Buckling-spring keyboard (The old IBM keyboards that make the clicky sound)
* Hall-effect keyboard (use magnets, used in ultra-high reliability applications)
* Laser keyboard (Lack of reliability, no tactile feedback)
* Membrane keyboard (flat and usually on microwaves or photocopiers, a beep or a flash of light when pressed)
: Example compliant keyboard "IntelliKeys" site=itc and software from Madentec [2]
* Roll-up keyboard (rubber,little tactile feedback)
* Waterproof keyboards
</gc+sn>

1.1.1.2 Navigation

<gc+sn>What do you mean by navigation for an Electronic Interface? Example please.</gc+sn>

1.1.1.3 Utility Controls

<gc+sn>Under Mechanical Interfaces you mention Utility Controls as (On/Off buttons, reset buttons). 
For Electronic Interfaces what would be the Utility Control?</gc+sn>

1.1.1.4 Auditory Input

Current standard text that might apply:
(2) Controls and keys shall be operable with one hand and shall not require tight grasping, pinching, 
or twisting of the wrist. The force required to activate controls and keys shall be 5 lbs. (22.2 N) maximum.

1.1.1.5 Video Input

<gc+sn>What kind of video were you imagining would be input into a hardware device? The ability to record video? 
Are you thinking a handheld device with a video input (i.e. camera)? </gc+sn>

Current standard text that might apply:
(2) Controls and keys shall be operable with one hand and shall not require tight grasping, pinching, or 
 twisting of the wrist. The force required to activate controls and keys shall be 5 lbs. (22.2 N) maximum.

1.1.1.6 Motion / Haptic

1.1.1.7 Biometrics

Current standard text:
(c) When biometric forms of user identification or control are used, an alternative form of identification 
or activation, which does not require the user to possess particular biological characteristics, shall 
also be provided.

1.1.1.8 Other

1.1.2 Machine

<gc+sn>Why is there a distinction between Machine and Human under Electronic Interfaces? A Keyboard 
is a Machine, right? A Human interacts with a Port, right? We don't see why a distinction needs to be made. 
Explain please. </gc+sn>

1.1.2.1 Ports

Current standard text:
(d) Where provided, at least one of each type of expansion slots, ports and connectors shall comply 
with publicly available industry standards.

1.1.2.2 Power

<gc+sn>What kind of input would Power have? Just a cord to plug into the wall or other power source?</gc+sn>

1.1.2.3 Other

1.2 Electronic Output

1.2.1 Human

1.2.1.1 Display

1.2.1.2 Auditory

1.2.1.3 Haptic

1.2.1.4 Smell

1.2.1.5 Temperature

1.2.1.6 Electrical Stimulation

1.2.1.7 Other

1.2.2 Machine

1.2.2.1 Ports

<gc+sn>What kind of output would a port have?</gc+sn>

Current standard text:
(d) Where provided, at least one of each type of expansion slots, ports and connectors shall comply with 
publicly available industry standards.

1.2.2.2 Power

<gc+sn>What kind of output would "power" have?</gc+sn>

1.2.2.3 Other

2 Mechanical Interfaces

2.1 Human

2.1.1 Latches

Current standard text:
(1) Controls and keys shall be tactilely discernible without activating the controls or keys.
(2) Controls and keys shall be operable with one hand and shall not require tight grasping, pinching, 
or twisting of the wrist. The force required to activate controls and keys shall be 5 lbs. (22.2 N) maximum.

2.1.2 Location of ports & other interfaces

Current standard text:
(d) Where provided, at least one of each type of expansion slots, ports and connectors shall comply with 
publicly available industry standards.

<gc+sn>This does not say anything about the location. Perhaps that can be expanded on? Height? Front/back/side? </gc+sn>

2.1.3 Size of connectors

Current standard text:
(d) Where provided, at least one of each type of expansion slots, ports and connectors shall comply with 
publicly available industry standards.

2.1.4 Color coding

2.1.5 Other

2.2 Machine

2.2.1 Security locks

<gc+sn>Would a security lock be considered a control or key? Like it seems latches seem to fall under "controls and keys"</gc+sn>

Current standard text that might apply:
(1) Controls and keys shall be tactilely discernible without activating the controls or keys. 
(2) Controls and keys shall be operable with one hand and shall not require tight grasping, pinching, or 
 twisting of the wrist. The force required to activate controls and keys shall be 5 lbs. (22.2 N) maximum.
(4) The status of all locking or toggle controls or keys shall be visually discernible, and discernible 
either through touch or sound.

2.2.2 Mounting

2.2.3 Utility Controls (On/Off buttons, reset buttons)

Current standard text:
(1) Controls and keys shall be tactilely discernible without activating the controls or keys.
(2) Controls and keys shall be operable with one hand and shall not require tight grasping, 
pinching, or twisting of the wrist. The     force required to activate controls and keys shall 
be 5 lbs. (22.2 N) maximum.
(4) The status of all locking or toggle controls or keys shall be visually discernible, and 
discernible either through touch or sound.

2.2.4 Power

2.2.5 Other

Listing of the current standards

§ 1194.26 Desktop and portable computers.

(a) All mechanically operated controls and keys shall comply with §1194.23 (k) (1) through(4).

(k) Products which have mechanically operated controls or keys, shall comply with the following:

(1) Controls and keys shall be tactilely discernible without activating the controls or keys.

(2) Controls and keys shall be operable with one hand and shall not require tight grasping, pinching, or twisting of the wrist. The force required to activate controls and keys shall be 5 lbs. (22.2 N) maximum.

(3) If key repeat is supported, the delay before repeat shall be adjustable to at least 2 seconds. Key repeat rate shall be adjustable to 2 seconds per character.

(4) The status of all locking or toggle controls or keys shall be visually discernible, and discernible either through touch or sound.

(b) If a product utilizes touchscreens or touch-operated controls, an input method shall be provided that complies with §1194.23 (k) (1) through (4).

(c) When biometric forms of user identification or control are used, an alternative form of identification or activation, which does not require the user to possess particular biological characteristics, shall also be provided.

(d) Where provided, at least one of each type of expansion slots, ports and connectors shall comply with publicly available industry standards.