Techniques for WCAG 2.0

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# G192: Fully conforming to specifications

## Applicability

This technique relates to all markup languages with specifications.

This technique relates to:

- Success Criterion 4.1.1 (Parsing)
  - How to Meet 4.1.1 (Parsing)
  - Understanding Success Criterion 4.1.1 (Parsing)

## Description

When markup languages are used in a way that fully conforms to their specifications, all of the requirements in 4.1.1 are met. Therefore, while fully conforming to specifications is not required to conform to WCAG 2.0, it is a best practice and is sufficient to meet Success Criterion 4.1.1.

## Examples

- A page is created with care to make sure that all technologies are used according to specification. It is run though a validator and all identified errors are corrected. Specification requirements that can not be identified by validation are also checked and any failures are corrected.

## Related Techniques

- G134: Validating Web pages
- H74: Ensuring that opening and closing tags are used according to specification
- H75: Ensuring that Web pages are well-formed
- H88: Using HTML according to spec

## Tests

### Procedure

1. Check that all technologies are used according to specification.

Note: While validators can be great tools for catching errors, they usually cannot catch all cases where content fails to fully conform to a specification.

### Expected Results

- Check #1 is true.

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