{"id":293,"date":"2019-06-04T15:47:29","date_gmt":"2019-06-04T19:47:29","guid":{"rendered":"https:\/\/pressbooks.library.ryerson.ca\/iwacc\/?post_type=chapter&#038;p=293"},"modified":"2019-07-30T21:50:03","modified_gmt":"2019-07-31T01:50:03","slug":"3-3-input-assistance-level-aa-and-aaa","status":"publish","type":"chapter","link":"https:\/\/pressbooks.library.torontomu.ca\/iwacc\/chapter\/3-3-input-assistance-level-aa-and-aaa\/","title":{"raw":"3.3 Input Assistance (Level AA and AAA)","rendered":"3.3 Input Assistance (Level AA and AAA)"},"content":{"raw":"<div style=\"margin: 1em 0;padding: 1em;border: 1px solid #ddd;border-left: 10px solid #ffcb05\">\r\n<h3><strong><a id=\"3.3.3\"><\/a>Success Criterion 3.3.3<\/strong> Error Suggestion<\/h3>\r\nLevel AA\r\n\r\nIf an <a href=\"https:\/\/www.w3.org\/TR\/WCAG21\/#dfn-input-error\">input error<\/a> is automatically detected and suggestions for correction are known, then the suggestions are provided to the user, unless it would jeopardize the security or purpose of the content.\r\n\r\n<\/div>\r\n<h4>Error Suggestion Explained<\/h4>\r\nWhen designing online forms, provide suggestions for fixing problems when input errors are detected.\r\n\r\nThis is a more stringent version of <strong>SC 3.3.1<\/strong>, which requires that errors be identified. To conform to <strong>SC 3.3.3<\/strong>, the errors must not only be identified, but suggestions on how to correct them must be provided.\r\n\r\nExplaining how to correct input errors may help people who, due to disability, have difficulties completing and submitting online forms. This includes people with learning disabilities, cognitive disabilities, visual impairments, and motor impairments.\r\n\r\nFor example, an input field asks users to type a month name. If a user enters \u201c12,\u201d suggestions for correction may include:\r\n<ul>\r\n \t<li>A list of the acceptable values: <strong>Choose one of: January, February, March, April, May, June, July, August, September, October, November, December<\/strong>.<\/li>\r\n \t<li>A reworded prompt: <strong>Type the month name.<\/strong><\/li>\r\n \t<li>A conversion of the input data in an interactive popup window: <strong>Do you mean \u201cDecember?\u201d<\/strong><\/li>\r\n<\/ul>\r\n<div style=\"margin: 1em 0;padding: 1em;border: 1px solid #ddd;border-left: 10px solid #0000ff\">\r\n\r\n<strong>Suggested Reading:<\/strong>\r\n<ul>\r\n \t<li><a href=\"https:\/\/www.w3.org\/WAI\/WCAG21\/Understanding\/error-suggestion.html\">Understanding Error Suggestion<\/a><\/li>\r\n \t<li><a href=\"https:\/\/www.w3.org\/WAI\/WCAG21\/quickref\/#error-suggestion\">How to Meet Error Suggestion<\/a><\/li>\r\n<\/ul>\r\n<\/div>\r\n<div style=\"margin: 1em 0;padding: 1em;border: 1px solid #ddd;border-left: 10px solid #ffcb05\">\r\n<h3><strong><a id=\"3.3.4\"><\/a>Success Criterion 3.3.4<\/strong> Error Prevention (Legal, Financial, Data)<\/h3>\r\nLevel AA\r\n\r\nFor <a href=\"https:\/\/www.w3.org\/TR\/WCAG21\/#dfn-web-page-s\">web pages<\/a> that cause <a href=\"https:\/\/www.w3.org\/TR\/WCAG21\/#dfn-legal-commitments\">legal commitments<\/a> or financial transactions for the user to occur, that modify or delete <a href=\"https:\/\/www.w3.org\/TR\/WCAG21\/#dfn-user-controllable\">user-controllable<\/a> data in data storage systems, or that submit user test responses, at least one of the following is true:\r\n<ul>\r\n \t<li><strong>Reversible<\/strong>: Submissions are reversible.<\/li>\r\n \t<li><strong>Checked<\/strong>: Data entered by the user is checked for input errors and the user is provided an opportunity to correct them.<\/li>\r\n \t<li><strong>Confirmed<\/strong>: A mechanism is available for reviewing, confirming, and correcting information before finalizing the submission.<\/li>\r\n<\/ul>\r\n<\/div>\r\n<h4>Error Prevention (Legal, Financial, Data) Explained<\/h4>\r\nWhen designing websites that allow people to make financial transactions, establish legal commitments, update data, or take tests, you need to help users avoid serious consequences of their mistakes.\r\n\r\nThe aim of <strong>SC<\/strong> <strong>3.3.4<\/strong> is to give users a second chance if they accidentally input the wrong information or activate the wrong control. In the following examples, the mistakes involve transactions that occur immediately and without the ability to alter them:\r\n<ul>\r\n \t<li>Purchasing non-refundable and non-exchangeable airline tickets online can have serious financial consequences. If a user specifies the wrong travel date, they may wind up with a ticket they cannot use.<\/li>\r\n \t<li>Accidentally deleting or modifying information stored in a travel service database may have dire consequences if the person later needs to access information about a flight.<\/li>\r\n \t<li>While taking an online examination, accidentally clicking the \u201cSubmit\u201d button before answering all questions could result in a poor score.<\/li>\r\n<\/ul>\r\nSome people with disabilities are more likely to make mistakes than people without disabilities. People with certain reading disabilities may transpose numbers and letters. People with motor disabilities may hit keys by accident.\r\n\r\nTo conform to <strong>SC 3.3.4<\/strong>, allow users to correct mistakes that could result in serious consequences before they happen. Provide one of the following:\r\n<ol>\r\n \t<li>A mechanism to reverse actions<\/li>\r\n \t<li>A way to review and correct information before it is submitted<\/li>\r\n \t<li>A way to check data for input errors<\/li>\r\n<\/ol>\r\n<div style=\"margin: 1em 0;padding: 1em;border: 1px solid #ddd;border-left: 10px solid #0000ff\">\r\n\r\n<strong>Suggested Reading:<\/strong>\r\n<ul>\r\n \t<li><a href=\"https:\/\/www.w3.org\/WAI\/WCAG21\/Understanding\/error-prevention-legal-financial-data.html\">Understanding Error Prevention (Legal, Financial, Data)<\/a><\/li>\r\n \t<li><a href=\"https:\/\/www.w3.org\/WAI\/WCAG21\/quickref\/#error-prevention-legal-financial-data\">How to Meet Error Prevention (Legal, Financial, Data)<\/a><\/li>\r\n<\/ul>\r\n<\/div>\r\n<div style=\"margin: 1em 0;padding: 1em;border: 1px solid #ddd;border-left: 10px solid #ffcb05\">\r\n<h3><strong><a id=\"3.3.5\"><\/a>Success Criterion 3.3.5<\/strong> Help<\/h3>\r\nLevel AAA\r\n\r\n<a href=\"https:\/\/www.w3.org\/TR\/WCAG21\/#dfn-context-sensitive-help\">Context-sensitive help<\/a> is available.\r\n\r\n<\/div>\r\n<h4>Help Explained<\/h4>\r\nWhen designing online forms, provide context-sensitive help when prompts cannot be made sufficiently descriptive.\r\n\r\nBy providing context-sensitive help, users can learn what to do without losing track of where they are. Context-sensitive help is only required when it is impractical to include full details in the prompts and labels.\r\n\r\nIt might be appropriate to offer context-sensitive help on an application for an employment program for newcomers to Canada. Applicants are asked to list their college and university degrees. Context-sensitive help reminds applicants that they are not obliged to include the years that degrees were granted.\r\n\r\nOne way to provide context-sensitive help is to place \u201cHelp\u201d links next to questions.\r\n\r\nConforming to <strong>SC<\/strong> <strong>3.3.5<\/strong> helps:\r\n<ul>\r\n \t<li>People with reading, writing, and intellectual disabilities<\/li>\r\n \t<li>Seniors<\/li>\r\n \t<li>Second-language learners<\/li>\r\n \t<li>Anyone who has trouble completing forms<\/li>\r\n \t<li>Anyone who does not know what information to include or exclude when filling out a form<\/li>\r\n<\/ul>\r\n<div style=\"margin: 1em 0;padding: 1em;border: 1px solid #ddd;border-left: 10px solid #0000ff\">\r\n\r\n<strong>Suggested Reading:<\/strong>\r\n<ul>\r\n \t<li><a href=\"https:\/\/www.w3.org\/WAI\/WCAG21\/Understanding\/help.html\">Understanding Help<\/a><\/li>\r\n \t<li><a href=\"https:\/\/www.w3.org\/WAI\/WCAG21\/quickref\/#help\">How to Meet Help<\/a><\/li>\r\n<\/ul>\r\n<\/div>\r\n<div style=\"margin: 1em 0;padding: 1em;border: 1px solid #ddd;border-left: 10px solid #ffcb05\">\r\n<h3><strong><a id=\"3.3.6\"><\/a>Success Criterion 3.3.6<\/strong> Error Prevention (All)<\/h3>\r\nLevel AAA\r\n\r\nFor <a href=\"https:\/\/www.w3.org\/TR\/WCAG21\/#dfn-web-page-s\">web pages<\/a> that require the user to submit information, at least one of the following is true:\r\n<ul>\r\n \t<li><strong>Reversible<\/strong>: Submissions are reversible.<\/li>\r\n \t<li><strong>Checked<\/strong>: Data entered by the user is checked for input errors and the user is provided an opportunity to correct them.<\/li>\r\n \t<li><strong>Confirmed<\/strong>: A mechanism is available for reviewing, confirming, and correcting information before finalizing the submission.<\/li>\r\n<\/ul>\r\n<\/div>\r\n<h4>Error Prevention (All) Explained<\/h4>\r\n<strong>SC 3.3.6<\/strong> amplifies\u00a0<strong>SC<\/strong> <strong>3.3.4<\/strong> (above), which applies only to certain kinds of websites. <strong>SC 3.3.6<\/strong> applies to all websites that require users to submit information.\r\n\r\nGive users a second chance if they accidentally input the wrong information or activate the wrong control. To conform to <strong>SC 3.3.6<\/strong>, make it possible for users to correct submission errors.\r\n\r\nProvide one of the following:\r\n<ol>\r\n \t<li>A mechanism to reverse an action<\/li>\r\n \t<li>A way to review and correct information before it is submitted<\/li>\r\n \t<li>A way to check data for input errors<\/li>\r\n<\/ol>\r\n<strong>Example:<\/strong> Reginald is a grade 8 student. Due to an accident, he has little use of his hands. He operates a computer via speech-recognition software instead of a keyboard and mouse. Recognition is excellent but not perfect.\r\n\r\nWhile signing up for an online science forum, Reginald dictates his first name into the \u201cName\u201d field. The speech recognition software thinks he said \u201cRegister,\u201d which causes the mouse to click the \u201cRegister\u201d button. Because the forum conforms to <strong>SC 3.3.6<\/strong>, the system gives him a chance to add his name before it commits the information to the database.\r\n<div style=\"margin: 1em 0;padding: 1em;border: 1px solid #ddd;border-left: 10px solid #0000ff\">\r\n\r\n<strong>Suggested Reading:<\/strong>\r\n<ul>\r\n \t<li><a href=\"https:\/\/www.w3.org\/WAI\/WCAG21\/Understanding\/error-prevention-all.html\">Understanding Error Prevention (All)<\/a><\/li>\r\n \t<li><a href=\"https:\/\/www.w3.org\/WAI\/WCAG21\/quickref\/#error-prevention-all\">How to Meet Error Prevention (All)<\/a><\/li>\r\n<\/ul>\r\n<\/div>","rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_80 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-69d9ed461dfce\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-69d9ed461dfce\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/pressbooks.library.torontomu.ca\/iwacc\/chapter\/3-3-input-assistance-level-aa-and-aaa\/#Success_Criterion_333_Error_Suggestion\" >Success Criterion 3.3.3 Error Suggestion<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/pressbooks.library.torontomu.ca\/iwacc\/chapter\/3-3-input-assistance-level-aa-and-aaa\/#Error_Suggestion_Explained\" >Error Suggestion Explained<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/pressbooks.library.torontomu.ca\/iwacc\/chapter\/3-3-input-assistance-level-aa-and-aaa\/#Success_Criterion_334_Error_Prevention_Legal_Financial_Data\" >Success Criterion 3.3.4 Error Prevention (Legal, Financial, Data)<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/pressbooks.library.torontomu.ca\/iwacc\/chapter\/3-3-input-assistance-level-aa-and-aaa\/#Error_Prevention_Legal_Financial_Data_Explained\" >Error Prevention (Legal, Financial, Data) Explained<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/pressbooks.library.torontomu.ca\/iwacc\/chapter\/3-3-input-assistance-level-aa-and-aaa\/#Success_Criterion_335_Help\" >Success Criterion 3.3.5 Help<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/pressbooks.library.torontomu.ca\/iwacc\/chapter\/3-3-input-assistance-level-aa-and-aaa\/#Help_Explained\" >Help Explained<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/pressbooks.library.torontomu.ca\/iwacc\/chapter\/3-3-input-assistance-level-aa-and-aaa\/#Success_Criterion_336_Error_Prevention_All\" >Success Criterion 3.3.6 Error Prevention (All)<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/pressbooks.library.torontomu.ca\/iwacc\/chapter\/3-3-input-assistance-level-aa-and-aaa\/#Error_Prevention_All_Explained\" >Error Prevention (All) Explained<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<div style=\"margin: 1em 0;padding: 1em;border: 1px solid #ddd;border-left: 10px solid #ffcb05\">\n<h3><span class=\"ez-toc-section\" id=\"Success_Criterion_333_Error_Suggestion\"><\/span><strong><a id=\"3.3.3\"><\/a>Success Criterion 3.3.3<\/strong> Error Suggestion<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Level AA<\/p>\n<p>If an <a href=\"https:\/\/www.w3.org\/TR\/WCAG21\/#dfn-input-error\">input error<\/a> is automatically detected and suggestions for correction are known, then the suggestions are provided to the user, unless it would jeopardize the security or purpose of the content.<\/p>\n<\/div>\n<h4><span class=\"ez-toc-section\" id=\"Error_Suggestion_Explained\"><\/span>Error Suggestion Explained<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>When designing online forms, provide suggestions for fixing problems when input errors are detected.<\/p>\n<p>This is a more stringent version of <strong>SC 3.3.1<\/strong>, which requires that errors be identified. To conform to <strong>SC 3.3.3<\/strong>, the errors must not only be identified, but suggestions on how to correct them must be provided.<\/p>\n<p>Explaining how to correct input errors may help people who, due to disability, have difficulties completing and submitting online forms. This includes people with learning disabilities, cognitive disabilities, visual impairments, and motor impairments.<\/p>\n<p>For example, an input field asks users to type a month name. If a user enters \u201c12,\u201d suggestions for correction may include:<\/p>\n<ul>\n<li>A list of the acceptable values: <strong>Choose one of: January, February, March, April, May, June, July, August, September, October, November, December<\/strong>.<\/li>\n<li>A reworded prompt: <strong>Type the month name.<\/strong><\/li>\n<li>A conversion of the input data in an interactive popup window: <strong>Do you mean \u201cDecember?\u201d<\/strong><\/li>\n<\/ul>\n<div style=\"margin: 1em 0;padding: 1em;border: 1px solid #ddd;border-left: 10px solid #0000ff\">\n<p><strong>Suggested Reading:<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/www.w3.org\/WAI\/WCAG21\/Understanding\/error-suggestion.html\">Understanding Error Suggestion<\/a><\/li>\n<li><a href=\"https:\/\/www.w3.org\/WAI\/WCAG21\/quickref\/#error-suggestion\">How to Meet Error Suggestion<\/a><\/li>\n<\/ul>\n<\/div>\n<div style=\"margin: 1em 0;padding: 1em;border: 1px solid #ddd;border-left: 10px solid #ffcb05\">\n<h3><span class=\"ez-toc-section\" id=\"Success_Criterion_334_Error_Prevention_Legal_Financial_Data\"><\/span><strong><a id=\"3.3.4\"><\/a>Success Criterion 3.3.4<\/strong> Error Prevention (Legal, Financial, Data)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Level AA<\/p>\n<p>For <a href=\"https:\/\/www.w3.org\/TR\/WCAG21\/#dfn-web-page-s\">web pages<\/a> that cause <a href=\"https:\/\/www.w3.org\/TR\/WCAG21\/#dfn-legal-commitments\">legal commitments<\/a> or financial transactions for the user to occur, that modify or delete <a href=\"https:\/\/www.w3.org\/TR\/WCAG21\/#dfn-user-controllable\">user-controllable<\/a> data in data storage systems, or that submit user test responses, at least one of the following is true:<\/p>\n<ul>\n<li><strong>Reversible<\/strong>: Submissions are reversible.<\/li>\n<li><strong>Checked<\/strong>: Data entered by the user is checked for input errors and the user is provided an opportunity to correct them.<\/li>\n<li><strong>Confirmed<\/strong>: A mechanism is available for reviewing, confirming, and correcting information before finalizing the submission.<\/li>\n<\/ul>\n<\/div>\n<h4><span class=\"ez-toc-section\" id=\"Error_Prevention_Legal_Financial_Data_Explained\"><\/span>Error Prevention (Legal, Financial, Data) Explained<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>When designing websites that allow people to make financial transactions, establish legal commitments, update data, or take tests, you need to help users avoid serious consequences of their mistakes.<\/p>\n<p>The aim of <strong>SC<\/strong> <strong>3.3.4<\/strong> is to give users a second chance if they accidentally input the wrong information or activate the wrong control. In the following examples, the mistakes involve transactions that occur immediately and without the ability to alter them:<\/p>\n<ul>\n<li>Purchasing non-refundable and non-exchangeable airline tickets online can have serious financial consequences. If a user specifies the wrong travel date, they may wind up with a ticket they cannot use.<\/li>\n<li>Accidentally deleting or modifying information stored in a travel service database may have dire consequences if the person later needs to access information about a flight.<\/li>\n<li>While taking an online examination, accidentally clicking the \u201cSubmit\u201d button before answering all questions could result in a poor score.<\/li>\n<\/ul>\n<p>Some people with disabilities are more likely to make mistakes than people without disabilities. People with certain reading disabilities may transpose numbers and letters. People with motor disabilities may hit keys by accident.<\/p>\n<p>To conform to <strong>SC 3.3.4<\/strong>, allow users to correct mistakes that could result in serious consequences before they happen. Provide one of the following:<\/p>\n<ol>\n<li>A mechanism to reverse actions<\/li>\n<li>A way to review and correct information before it is submitted<\/li>\n<li>A way to check data for input errors<\/li>\n<\/ol>\n<div style=\"margin: 1em 0;padding: 1em;border: 1px solid #ddd;border-left: 10px solid #0000ff\">\n<p><strong>Suggested Reading:<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/www.w3.org\/WAI\/WCAG21\/Understanding\/error-prevention-legal-financial-data.html\">Understanding Error Prevention (Legal, Financial, Data)<\/a><\/li>\n<li><a href=\"https:\/\/www.w3.org\/WAI\/WCAG21\/quickref\/#error-prevention-legal-financial-data\">How to Meet Error Prevention (Legal, Financial, Data)<\/a><\/li>\n<\/ul>\n<\/div>\n<div style=\"margin: 1em 0;padding: 1em;border: 1px solid #ddd;border-left: 10px solid #ffcb05\">\n<h3><span class=\"ez-toc-section\" id=\"Success_Criterion_335_Help\"><\/span><strong><a id=\"3.3.5\"><\/a>Success Criterion 3.3.5<\/strong> Help<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Level AAA<\/p>\n<p><a href=\"https:\/\/www.w3.org\/TR\/WCAG21\/#dfn-context-sensitive-help\">Context-sensitive help<\/a> is available.<\/p>\n<\/div>\n<h4><span class=\"ez-toc-section\" id=\"Help_Explained\"><\/span>Help Explained<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>When designing online forms, provide context-sensitive help when prompts cannot be made sufficiently descriptive.<\/p>\n<p>By providing context-sensitive help, users can learn what to do without losing track of where they are. Context-sensitive help is only required when it is impractical to include full details in the prompts and labels.<\/p>\n<p>It might be appropriate to offer context-sensitive help on an application for an employment program for newcomers to Canada. Applicants are asked to list their college and university degrees. Context-sensitive help reminds applicants that they are not obliged to include the years that degrees were granted.<\/p>\n<p>One way to provide context-sensitive help is to place \u201cHelp\u201d links next to questions.<\/p>\n<p>Conforming to <strong>SC<\/strong> <strong>3.3.5<\/strong> helps:<\/p>\n<ul>\n<li>People with reading, writing, and intellectual disabilities<\/li>\n<li>Seniors<\/li>\n<li>Second-language learners<\/li>\n<li>Anyone who has trouble completing forms<\/li>\n<li>Anyone who does not know what information to include or exclude when filling out a form<\/li>\n<\/ul>\n<div style=\"margin: 1em 0;padding: 1em;border: 1px solid #ddd;border-left: 10px solid #0000ff\">\n<p><strong>Suggested Reading:<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/www.w3.org\/WAI\/WCAG21\/Understanding\/help.html\">Understanding Help<\/a><\/li>\n<li><a href=\"https:\/\/www.w3.org\/WAI\/WCAG21\/quickref\/#help\">How to Meet Help<\/a><\/li>\n<\/ul>\n<\/div>\n<div style=\"margin: 1em 0;padding: 1em;border: 1px solid #ddd;border-left: 10px solid #ffcb05\">\n<h3><span class=\"ez-toc-section\" id=\"Success_Criterion_336_Error_Prevention_All\"><\/span><strong><a id=\"3.3.6\"><\/a>Success Criterion 3.3.6<\/strong> Error Prevention (All)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Level AAA<\/p>\n<p>For <a href=\"https:\/\/www.w3.org\/TR\/WCAG21\/#dfn-web-page-s\">web pages<\/a> that require the user to submit information, at least one of the following is true:<\/p>\n<ul>\n<li><strong>Reversible<\/strong>: Submissions are reversible.<\/li>\n<li><strong>Checked<\/strong>: Data entered by the user is checked for input errors and the user is provided an opportunity to correct them.<\/li>\n<li><strong>Confirmed<\/strong>: A mechanism is available for reviewing, confirming, and correcting information before finalizing the submission.<\/li>\n<\/ul>\n<\/div>\n<h4><span class=\"ez-toc-section\" id=\"Error_Prevention_All_Explained\"><\/span>Error Prevention (All) Explained<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><strong>SC 3.3.6<\/strong> amplifies\u00a0<strong>SC<\/strong> <strong>3.3.4<\/strong> (above), which applies only to certain kinds of websites. <strong>SC 3.3.6<\/strong> applies to all websites that require users to submit information.<\/p>\n<p>Give users a second chance if they accidentally input the wrong information or activate the wrong control. To conform to <strong>SC 3.3.6<\/strong>, make it possible for users to correct submission errors.<\/p>\n<p>Provide one of the following:<\/p>\n<ol>\n<li>A mechanism to reverse an action<\/li>\n<li>A way to review and correct information before it is submitted<\/li>\n<li>A way to check data for input errors<\/li>\n<\/ol>\n<p><strong>Example:<\/strong> Reginald is a grade 8 student. Due to an accident, he has little use of his hands. He operates a computer via speech-recognition software instead of a keyboard and mouse. Recognition is excellent but not perfect.<\/p>\n<p>While signing up for an online science forum, Reginald dictates his first name into the \u201cName\u201d field. The speech recognition software thinks he said \u201cRegister,\u201d which causes the mouse to click the \u201cRegister\u201d button. Because the forum conforms to <strong>SC 3.3.6<\/strong>, the system gives him a chance to add his name before it commits the information to the database.<\/p>\n<div style=\"margin: 1em 0;padding: 1em;border: 1px solid #ddd;border-left: 10px solid #0000ff\">\n<p><strong>Suggested Reading:<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/www.w3.org\/WAI\/WCAG21\/Understanding\/error-prevention-all.html\">Understanding Error Prevention (All)<\/a><\/li>\n<li><a href=\"https:\/\/www.w3.org\/WAI\/WCAG21\/quickref\/#error-prevention-all\">How to Meet Error Prevention (All)<\/a><\/li>\n<\/ul>\n<\/div>\n","protected":false},"author":100,"menu_order":7,"template":"","meta":{"pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"chapter-type":[],"contributor":[],"license":[],"class_list":["post-293","chapter","type-chapter","status-publish","hentry"],"part":32,"_links":{"self":[{"href":"https:\/\/pressbooks.library.torontomu.ca\/iwacc\/wp-json\/pressbooks\/v2\/chapters\/293","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pressbooks.library.torontomu.ca\/iwacc\/wp-json\/pressbooks\/v2\/chapters"}],"about":[{"href":"https:\/\/pressbooks.library.torontomu.ca\/iwacc\/wp-json\/wp\/v2\/types\/chapter"}],"author":[{"embeddable":true,"href":"https:\/\/pressbooks.library.torontomu.ca\/iwacc\/wp-json\/wp\/v2\/users\/100"}],"version-history":[{"count":4,"href":"https:\/\/pressbooks.library.torontomu.ca\/iwacc\/wp-json\/pressbooks\/v2\/chapters\/293\/revisions"}],"predecessor-version":[{"id":1171,"href":"https:\/\/pressbooks.library.torontomu.ca\/iwacc\/wp-json\/pressbooks\/v2\/chapters\/293\/revisions\/1171"}],"part":[{"href":"https:\/\/pressbooks.library.torontomu.ca\/iwacc\/wp-json\/pressbooks\/v2\/parts\/32"}],"metadata":[{"href":"https:\/\/pressbooks.library.torontomu.ca\/iwacc\/wp-json\/pressbooks\/v2\/chapters\/293\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/pressbooks.library.torontomu.ca\/iwacc\/wp-json\/wp\/v2\/media?parent=293"}],"wp:term":[{"taxonomy":"chapter-type","embeddable":true,"href":"https:\/\/pressbooks.library.torontomu.ca\/iwacc\/wp-json\/pressbooks\/v2\/chapter-type?post=293"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/pressbooks.library.torontomu.ca\/iwacc\/wp-json\/wp\/v2\/contributor?post=293"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/pressbooks.library.torontomu.ca\/iwacc\/wp-json\/wp\/v2\/license?post=293"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}