1. Switch Access Scanning MICHAEL GRAHAM – ACCESSIBLE COMPUTING (CMPT 480) – 2015-12-03

2. Justification  Many users do not have the mobility to use a mouse and keyboard  Switch access scanning (SAS) allows these users to use a PC by using a single switch.  This switch can be activated in multiple ways.  SAS allows a group of users access to computers that would not have it otherwise.

3. Analysis I  In order to figure out how SAS makes computing more accessible, you must first understand the underlying scanning techniques.  Constantinou & Steriadis identified four main types of scanning:  Cell  Row/column  Block/matrix  Diagonal scanning

4. Analysis II  Brian Russel and Chris proposed a far more optimal keyboard layout to use with SAS systems than that of the QWERTY layout.  In following this design the overall efficiency of the system could be greatly increased. _EAICF <- ONDG, T RHM." S LPB-' U WKJQ$ Y VXZ:;

5. Implementation I  I created an ADE based off of Apple’s Switch Control.  It is accessibility software found on all iOS systems.  Users were tested using Switch Control, and instructed to perform various tasks. A screenshot of Switch Control’s keyboard

6. Implementation II  These tasks included:  Navigating & logging into various webpages.  Typing using switch control  Using Apple’s “point” scanning technique  Attempting to solve a simple puzzle using Switch Control  Some users were not able to login to proposed webpages.

7. Results  I strongly believe I should have tested more people.  I cannot demonstrate this ADE, as I do not have a Mac.  Video of Switch Control in action: https://youtu.be/1AfbGQ2DYjg?t=2m18shttps://youtu.be/1AfbGQ2DYjg?t=2m18s  This ADE took on average the same amount of time that it took me to accomplish most ADEs.  No users needed any additional assistance or information in performing the tasks either than what was provided in the ADE.  Users were not sure what to take away from it, despite it being outlined in the intro  The ADE was somewhat a success, as it got most users to think about SAS, even if they weren’t that interested in the topic in the first place.

8. Conclusion & Recommendations  This ADE does introduce people to the issues that SAS users may face therefore it is good enough to be used  It is not the most “entertaining” thing ever, but none of the ADEs really were; they were there to introduce you to the topic.  Recommendations:  Limit or eliminate the need for users to login to pages  Use more simplistic English to ensure it can be properly translated  Specify exactly what users should take away from it.