A.4: Understandable
A.4 Editing-views are understandable
A.4.1: Help authors avoid and correct mistakes.
All authoring actions are either reversible or the authoring tool requires author confirmation to proceed.
A.4.1.1: Content Changes Reversible (Minimum)
Level A Implementing A.4.1.1All authoring actions are either reversible or the authoring tool requires author confirmation to proceed.
A.4.1.2: Settings Change Confirmation
Level A Implementing A.4.1.2If the authoring tool provides mechanisms for changing authoring tool user interface settings, then those mechanisms can reverse the setting changes, or the authoring tool requires author confirmation to proceed.
A.4.1.3: Content Changes Reversible (Enhanced)
Level AAA Implementing A.4.1.3
A.4.1.3: Content Changes Reversible (Enhanced)
Level AAA Implementing A.4.1.3Authors can sequentially reverse a series of reversible authoring actions. (Level AAA)
Notes
Note : It is acceptable to clear the authoring action history at the end of authoring sessions.
A.4.2: Document the user interface, including all accessibility features.
Some authors may not be able to understand or operate the authoring tool user interface without documentation.
A.4.2.1: Describe Accessibility Features
Level A Implementing A.4.2.1For each authoring tool feature that is used to meet Part A of ATAG 2.0, at least one of the following is true: (a) Described in the Documentation: Use of the feature is explained in the authoring tool's documentation; or (b) Described in the Interface: Use of the feature is explained in the authoring tool user interface; or (c) Platform Service: The feature is a service provided by an underlying platform; or (d) Not Used by Authors: The feature is not used directly by authors (e.g. passing information to a platform accessibility service).
- Described in the Documentation : Use of the feature is explained in the authoring tool's documentation; or
- Described in the Interface : Use of the feature is explained in the authoring tool user interface; or
- Platform Service : The feature is a service provided by an underlying platform; or
- Not Used by Authors : The feature is not used directly by authors (e.g. passing information to a platform accessibility service).
Notes
Note 1 : The accessibility of the documentation is covered by Guideline A.1.1 and Guideline A.1.2.
A.4.2.2: Document All Features
Level AA Implementing A.4.2.2For each authoring tool feature, at least one of the following is true: (a) Described in the Documentation: Use of the feature is explained in the authoring tool's documentation; or (b) Described in the Interface: Use of the feature is explained in the authoring tool user interface; or (c) Platform Service: The feature is a service provided by an underlying platform; or (d) Not Used by Authors: The feature is not used directly by authors (e.g. passing information to a platform accessibility service).
- Described in the Documentation : Use of the feature is explained in the authoring tool's documentation; or
- Described in the Interface : Use of the feature is explained in the authoring tool user interface; or
- Platform Service : The feature is a service provided by an underlying platform; or
- Not Used by Authors : The feature is not used directly by authors (e.g. passing information to a platform accessibility service).
Notes
Note 1 : The accessibility of the documentation is covered by Guideline A.1.1 and Guideline A.1.2.