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Developer Related Web Accessibility Principles and Guidelines (WCAG)

 
1.1.1 Non-text Content

All non-text content that is presented to the user has a text alternative that serves the equivalent purpose.

(Level) A  Targets: AWG Developer FileMaker 

1.3.1 Info and Relationships

Information, structure, and relationships conveyed through presentation can be programmatically determined or are available in text.

(Level) A  Targets: AWG Developer PageMaker FileMaker 

1.3.2 Meaningful Sequence

When the sequence in which content is presented affects its meaning, a correct reading sequence can be programmatically determined.

(Level) A  Targets: AWG Developer FileMaker 

1.3.3 Sensory Characteristics

Instructions provided for understanding and operating content do not rely solely on sensory characteristics of components such as shape, size, visual location, orientation, or sound.

(Level) A  Targets: AWG Developer PageMaker FileMaker 

1.4.1 Use of Color

Color is not used as the only visual means of conveying information, indicating an action, prompting a response, or distinguishing a visual element.

(Level) A  Targets: AWG Developer PageMaker FileMaker 

1.4.3 Contrast (Minimum)

The visual presentation of text and images of text has a contrast ratio of at least 4.5:1, except in some instances.

(Level) AA  Targets: AWG Developer PageMaker FileMaker 

1.4.4 Resize text

Except for captions and images of text, text can be resized without assistive technology up to 200 percent without loss of content or functionality.

(Level) AA  Targets: Developer 

1.4.5 Images of Text

If the technologies being used can achieve the visual presentation, text is used to convey information rather than images of text except in some instances.

(Level) AA  Targets: AWG Developer PageMaker FileMaker 

2.1.1 Keyboard

All functionality of the content is operable through a keyboard interface without requiring specific timings for individual keystrokes, except where the underlying function requires input that depends on the path of the user's movement and not just the endpoints.

(Level) A  Targets: Developer 

2.1.2 No Keyboard Trap

If keyboard focus can be moved to a component of the page using a keyboard interface, then focus can be moved away from that component using only a keyboard interface, and, if it requires more than unmodified arrow or tab keys or other standard exit methods, the user is advised of the method for moving focus away.

(Level) A  Targets: Developer 

2.2.1 Timing Adjustable

For each time limit that is set by the content.

(Level) A  Targets: AWG Developer PageMaker 

2.2.2 Pause, Stop, Hide

For moving, blinking, scrolling, or auto-updating information.

(Level) A  Targets: Developer 

2.3.1 Three Flashes or Below Threshold

Web pages do not contain anything that flashes more than three times in any one second period, or the flash is below the general flash and red flash thresholds.

(Level) A  Targets: AWG Developer PageMaker FileMaker 

2.4.1 Bypass Blocks

A mechanism is available to bypass blocks of content that are repeated on multiple Web pages.

(Level) A  Targets: Developer 

2.4.2 Page Titled

Web pages have titles that describe topic or purpose.

(Level) A  Targets: AWG Developer PageMaker FileMaker 

2.4.3 Focus Order

If a Web page can be navigated sequentially and the navigation sequences affect meaning or operation, focusable components receive focus in an order that preserves meaning and operability.

(Level) A  Targets: Developer 

2.4.4 Link Purpose (In Context)

The purpose of each link can be determined from the link text alone or from the link text together with its programmatically determined link context, except where the purpose of the link would be ambiguous to users in general.

(Level) A  Targets: AWG Developer 

2.4.5 Multiple Ways

More than one way is available to locate a Web page within a set of Web pages except where the Web Page is the result of, or a step in, a process.

(Level) AA  Targets: Developer 

2.4.6 Headings and Labels

More than one way is available to locate a Web page within a set of Web pages except where the Web Page is the result of, or a step in, a process.

(Level) AA  Targets: Developer 

2.4.7 Focus Visible

Any keyboard operable user interface has a mode of operation where the keyboard focus indicator is visible.

(Level) AA  Targets: Developer 

3.1.1 Language of Page

The default human language of each Web page can be programmatically determined.

(Level) A  Targets: AWG Developer PageMaker 

3.1.2 Language of Parts

The human language of each passage or phrase in the content can be programmatically determined except for proper names, technical terms, words of indeterminate language, and words or phrases that have become part of the vernacular of the immediately surrounding text.

(Level) AA  Targets: AWG Developer PageMaker 

3.2.1 On Focus

When any component receives focus, it does not initiate a change of context.

(Level) A  Targets: Developer 

3.2.2 On Input

Changing the setting of any user interface component does not automatically cause a change of context unless the user has been advised of the behavior before using the component.

(Level) A  Targets: Developer 

3.2.3 Consistent Navigation

Navigational mechanisms that are repeated on multiple Web pages within a set of Web pages occur in the same relative order each time they are repeated, unless a change is initiated by the user.

(Level) AA  Targets: Developer 

3.2.4 Consistent Identification

Components that have the same functionality within a set of Web pages are identified consistently.

(Level) AA  Targets: Developer 

3.3.1 Error Identification

If an input error is automatically detected, the item that is in error is identified and the error is described to the user in text.

(Level) A  Targets: Developer 

3.3.2 Labels or Instructions

Labels or instructions are provided when content requires user input.

(Level) A  Targets: Developer 

3.3.3 Error Suggestion

If an input error 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.

(Level) AA  Targets: Developer 

3.3.4 Error Prevention (Legal, Financial, Data)

For Web pages that cause legal commitments or financial transactions for the user to occur, that modify or delete user-controllable data in data storage systems, or that submit user test responses.

(Level) AA  Targets: Developer 

4.1.1 Parsing

In content implemented using markup languages, elements have complete start and end tags, elements are nested according to their specifications, elements do not contain duplicate attributes, and any IDs are unique, except where the specifications allow these features.

(Level) A  Targets: Developer 

4.1.2 Name, Role, Value

For all user interface components (including but not limited to: form elements, links and components generated by scripts), the name and role can be programmatically determined; states, properties, and values that can be set by the user can be programmatically set; and notification of changes to these items is available to user agents, including assistive technologies.

(Level) A  Targets: Developer 

 

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