- From: Ian Jacobs <ij@w3.org>
- Date: Mon, 17 Jul 2000 18:15:52 -0400
- To: w3c-wai-ua@w3.org, tantek@cs.stanford.edu
Hello, This email is part two of a series of emails about issues raised about the 7 July UA Guidelines [1] during an evaluation of MAC IE 5 [2] conducted with the lead developer, Tantek Çelik. Refer to part one [3] of this series for issues raised about Guidelines one through seven. This email covers issues raised in Guidelines 8, 9, and 11. While these are issues that could be raised during a last call review, some of them are directly related to our efforts to establish more precise requirements, and so I am sending them as part of the process of refining and clarifying the document. The issues follow my signature. Below, I summarize the seven issues that were raised. - Ian P.S. I hope to send the results of the review of Guideline 10 in the near future. [1] http://www.w3.org/WAI/UA/WD-UAAG10-20000707 [2] http://www.microsoft.com/mac/ie/ [3] http://lists.w3.org/Archives/Public/w3c-wai-ua/2000JulSep/0060.html -- Ian Jacobs (jacobs@w3.org) http://www.w3.org/People/Jacobs Tel: +1 831 457-2842 Cell: +1 917 450-8783 ISSUES Issue 1) Checkpoint 8.8 reads: Implement selection, content focus, and user interface focus mechanisms. Implement them according to system conventions per checkpoint 5.8. Proposal: Add a clarification that this checkpoint is about the semantics of these mechanisms (selection, focus) and not their presentation. Their presentation is covered in checkpoint 8.9. Issue 2) The definition of "recognize" needs review. I don't have a proposal right now. Issue 3) Define set of explicit submit controls for HTML Checkpoint 11.2 reads: Allow configuration so the user is prompted to confirm any form submission not caused by explicit activation of a form submit control. Proposal: Add to the Note following the checkpoint that in HTML 4, the only explicit controls are INPUT type="submit" and type="image", and BUTTON type="submit". Issue 4) Change percentage back to proportion. Checkpoints 9.4 and 9.5 used to say "proportion" and now they say "percentage". I propose that was return to "proportion". For example, saying that 1 Mbyte of 10 Mbytes has been transferred is just as useful as saying 10% has been transferred, and it is also gives size information. Proposal: a) Change "percentage" back to "proportion" b) Give two examples of indicating proportion: percentage and "X of total Y". Issue 5) Definition of "stalled". Checkpoint 9.4 reads: 9.4 When transferring content (e.g., a document, image, audio, video, etc.) indicate what percentage of the content has been transferred and whether the transfer has stalled. Issue: What is the definition of "stalled"? What is the length of time before the transfer should be considered stalled. Proposal: Specify that user agents should refer to specifications of underlying protocols (e.g., tcp/ip) that may specify timeout parameters. I am not familiar with these specifications, so any advice (notably URIs) would be appreciated. Issue 6) Does relative position of the viewport include horizontal position? Proposal: Yes. In fact, the dimensions depend on the viewport. An audio viewport would not (I believe) have this issue since the output is one dimensional. Issue 7) General advice about implementation of optional features of a specification. Proposed: Add the following statement to the spec (as a Note to either to checkpoint 6.1 or 6.2): "Developers should not implement an optional feature of a specification if that feature may pose accessibility problems and if the user cannot turn off the feature in the user agent."
Received on Monday, 17 July 2000 18:15:56 UTC