Regulation On The Creation Of Barrier-Free Information Technology According To The Disability Equality Act

Original Language Title: Verordnung zur Schaffung barrierefreier Informationstechnik nach dem Behindertengleichstellungsgesetz

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Regulation on the creation of barrier-free information technology in accordance with the Act on Equal Opportunities for Disabled Persons (Barrier-free Information Technology-Regulation-BITV 2.0)

Non-official contents of the table of contents

BITV 2.0

Date of delivery: 12.09.2011

Full quote:

" Barrier-free information technology regulation of 12. September 2011 (BGBl. I p. 1843) "

footnote

(+ + + text evidence from: 22.9.2011 + + +)

unofficial table of contents

input formula

On the basis of the second sentence of Article 11 (1) of the Act on Equal Opportunities for Persons with Disabilities, as last amended by Article 12 of the Act of 19. December 2007 (BGBl. 3024), the Federal Ministry of Labour and Social Affairs (Federal Ministry of Labour and Social Affairs) is responsible for: Non-official table of contents

§ 1 Scope of application

The regulation applies to the following offers from the authorities of the Federal Administration:
1.
Internet presences and offers,
2.
Intraneappearances and offerings that are publicly accessible, and
3.
by means of information technology realized graphical program interfaces that are open to the public.
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§ 2 inclusive groups of disabled persons Persons

The design of the information technology offers referred to in § 1 is intended to provide disabled persons within the meaning of § 3 of the Act on Equal Opportunities for Disabled Persons, which without the fulfilment of additional conditions the use of the Information technology is only possible in a limited way to open access to it. Non-official table of contents

§ 3 applicable standards

(1) The information technology offers referred to in § 1 are to be found in accordance with Appendix 1. ensure that all tenders comply with the requirements and conditions set out in Priority I. In addition, central navigation and entry offers should also take into account the requirements and conditions listed under Priority II.(2) On the homepage of the Internet or intranet offer (§ 1 (1) and (2)) of an authority within the meaning of Section 7 (1), first sentence, of the Act on Equal Opportunities for Disabled Persons, the following explanations in German sign language and in light are provided in accordance with Annex 2. To provide a language:
1.
Content information,
2.
Navigation considerations as well as
3.
Notes on further information available in this appearance in German sign language or in light language.
The requirements and conditions Annex 1 shall remain unaffected. Non-official table of contents

§ 4 Implementation deadlines for the standards

(1) The offers mentioned in § 1, which are up to 22. March 2012 shall be redesigned or substantially modified or adapted to a substantial extent, according to § 3. At least one access path to the above offers is intended to satisfy the requirements and conditions of priority I of Appendix 1 with the activation of these offers.(2) Offers pursuant to Section 1 (1) and (2), published before the date referred to in the first sentence of paragraph 1, shall be submitted at the latest by the date of 22 February 2013. In accordance with Article 3 (1), the following shall be made in September In addition, they shall be at the latest by 22. March 2014 in accordance with § 3 (2).(3) For tenders referred to in paragraph 2, the barrier-free information technology regulation of 17 shall apply until the implementation within the meaning of paragraphs 1 and 2 of this Article. July 2002 (BGBl. 2654). Non-official table of contents

§ 5 Impact Assessment

(1) The Regulation must be reviewed regularly, taking account of technical developments. It shall be reviewed for its effect no later than three years after its entry into force.(2) The effect and necessity of the tenders referred to in Article 3 (2) shall be reviewed no later than three years after the date of their entry into force. Non-official table of contents

§ 6 Entry into force, override

This Regulation enters into force the day after the announcement. At the same time, the Barrier-Free Information Technology Ordination of 17. July 2002 (BGBl. 2654). Non-official table of contents

Appendix 1 (to § 3 and § 4 paragraph 1)

(found: BGBl. I 2011, 1845-1858)

Priority I
Principle 1:
Perceptibility-The information and components of the user interface are to be represented in such a way that they can be perceived by the users.

requirement 1.1For each non-text content, alternatives are to be provided in text form that meet the needs of the Conditions1.1.1 Non-text content For each non-text content presented to the user or the user, a text alternative is to be provided for the purpose of this content erfilt.Text alternatives do not need to be provided in the following cases:
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It is a control element or an element that accepts input from the user or the user, and there is an identifier that describes its purpose.
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is the time-controlled media and text alternatives that already contain at least one descriptive explanation of the non-text content.
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It is a question of Tests or exercises that need to be presented in non-text format, and text alternatives that already contain at least one descriptive explanation of the non-text content are available.
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Specific sensory experiences are to be created and text alternatives that already contain at least one descriptive explanation of the non-text content are to be found in the Available.
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It is to be achieved that no computer, but a person accesses the content and the non-text content is explained by text alternatives and , and alternative CAPTCHAs with different output modes are provided for different types of sensory perception.
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It is for purely decorative elements or elements that only serve the visual design, or the non-text content is not visible to the user or the user, and these elements are set up to be ignored by assistive technologies

Request 1.2For time-controlled media, alternatives are ready. conditions1.2.1 Recorded audio and video files For recorded pure audio and pure video files, which do not already have a Media alternatives for text are and are clearly identified as such, must be provided:
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For contents of the recorded audio files: Text alternatives with equivalent information,
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for Contents of the recorded video files: text alternatives or a sound track with equivalent information.
1.2.2 Extended subtitles (Captions) For recorded audio content of synchronized media, extended subtitles (Captions). This does not apply to media alternatives for text that is clearly marked as such. 1.2.3 Audio Description or Full Text Alternative For recorded synchronized media, a full-text alternative including all interactions or a Audio-Deskription. This does not apply to media alternatives for text that is clearly marked as such. 1.2.4 Live subtitling Live broadcasts of synchronized media are all audio content available as extended subtitles (Captions). 1.2.5 Audio-DescriptionFor all pre-recorded video content of synchronized media, audio descretion is to be provided. This does not apply to media alternatives for text that are clearly marked as such.
Requirement 1.3Content is to be designed in such a way that it is presented in different ways without any loss of information or structure Conditions 1.3.1 Information and relationships All information, structures and relationships mediated by layout and presentation are recognizable by programs or in the text available.1.3.2 Meaningful sequelyIf the The order in which the content is presented has an impact on its meaning, the correct reading sequence is recognizable by programs. 1.3.3 Sensory feature instructions for understanding and use of the content are not based on exclusively on sensory characteristics of the elements, such as B. Shape, size, visual placement, orientation or sound.
Request for 1.4users is the perception of the content and the distinction between foreground and background as much easier as possible. conditions1.4.1 Color Color is not the only means to transmit information, to display an action, to initiate a response, or to identify a visual element. 1.4.2 Audio controls for audio elements that are automatically longer on a web page when played as three seconds, there are
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either a mechanism to break down or end of the Tons or
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a volume control mechanism independent of system loudness.
1.4.3 Contrast in visual presentation of text and In writing, the contrast ratio between foreground and background color is at least 4.5:1. A contrast ratio of at least 3:1 is valid for large-scale and large-scale typewritten graphics. No minimum contrast is required for incidental texts and typewriters,
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the part of a inactive component of the user interface,
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which are purely decorative,
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which are incidental text in an image, or
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that are not visible to the user or the user.
For text that is part of a logo or a brand name, there are no requirements on the minimum contrast.1.4.4 Modifiable text size The text can be enlarged to 200% without assistive technology without losing content or functionality Commt.1.4.5 Font graphics to communicate information are not to be used, unless
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These can be individually adapted to the visual needs of the user or the user, or
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a particular presentation is essential to convey the information of the text.
Principle 2:
operability-The components of the user interface and the navigation must be able to be served.

Request 2.1For all functionality, Accessibility via the keyboard. conditions2.1.1 Keyboard operability The entire functionality of the content must be able to be accessed via a keyboard interface without certain time constraints for the individual keystrokes must be complied with. This does not apply if the underlying function requires input, which depends not only on the endpoints, but also on the course of the user's movement. 2.1.2 No keyboard falleable the keyboard focus by using a keyboard interface is moved to an element of the page, the focus must also be moved from this element via the keyboard interface. If more than the standard, arrow or tab keys are required for this purpose, the users are to be informed about the method with which the focus can be moved away.
requirement 2.2The users are sufficient time to to read and use content. conditions2.2.1 Time-related requestsFor each time limit specified by content, at least one of the following options must exist:
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The time limit must be disconnectable before the time expires.
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The time limit can be changed within a timeframe that is at least ten times the default.
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The user or user is warned that the time runs out, and then has at least 20 seconds of time, the duration through a simple action (e.g. By pressing the spacebar). This option is given to the user or the user at least ten times.
It is not necessary to adjust the time limit when
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the time limit is a necessary part of a real-time event (e.g. B. of an auction) and there is no alternative to the scheduled time limit,
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the time limit is necessary and the activity will be invalid by extension would or
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the time frame is more than 20 hours.
2.2.2 Hold, terminate, hide, blink or scroll, and the
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automatically deploy
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lasts longer than five seconds, and
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simultaneously presents with other content
must be held, stopped, or hidden unless this movement is essential for an activity. Information that is automatically updated and the
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insert automatically and
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simultaneously presented with other content,
must be held, stopped, hidden, or controlled in its refresh rate, unless This automatic update is essential for an activity.
Request 2.3Content is to be designed in such a way that no epileptic seizures are triggered. Condition2.3.1 Three-times flash-down of the threshold value web pages do not contain elements that flash more than three times over a period of one second, unless the flash is below the "general flash" or "red flash" threshold.
requirement 2.4The user or the user are Guidance and navigational aids as well as aids for finding content available. Conditions2.4.1 Reaction of item groups For groups of elements that are repeated on multiple web pages, mechanisms are available to 2.4.2 Web page title pages contain titles that describe the topic or purpose of the page. 2.4.3 Focus sequence If the navigation sequence has an influence on the meaning or operation of the website, focusable components are provided the focus in the order that ensures that meaning and operability are preserved. 2.4.4 Purpose of a link (in the context) The aim and purpose of a link are visible from the link text itself or from the link text in conjunction with the link text Programs specific link context. 2.4.5 Alternative access routes are offered as alternative ways to find content and web pages within connected web offers. This does not apply to pages that can only be reached via a specific procedure. 2.4.6 Descriptive headers and labels (labels) characterize the topic or purpose. 2.4.7 Visible focus On keyboard operation is always a Keyboard focus view.2.4.8 Location Information about the location of the user or the user within the website as well as within connected web offers is available.
Principle 3:
intelligibility-the user interface information and operation

requirement 3.1Texts are readable and understandable. Conditions3.1.1 SpracheThe predominant natural language of each web page is recognizable by programs. 3.1.2 Language of individual sections natural language of all used text passages or expressions can be identified by programs.
requirement 3.2Web pages are to be designed in such a way that the structure and use are predictable sind.conditions3.2.1 When focussing, a component is Focus, will not cause a change in context. 3.2.2 On input, changing the setting of an element of the user interface does not automatically result in a change of context, unless the user or user has been informed of this behaviour before use of the element. 3.2.3 Uniform navigational navigation mechanisms, which are repeated within a web offer, shall occur in the same order on each repetition, unless the User or the user initiates a changes.3.2.4 Single labelling In a web offering and within connected web pages, elements with the same functionality are designated uniformly.
requirement 3.3For error prevention and -correction are providing supporting functions for input. conditions3.3.1 Failure identificationIf an input error is detected automatically, the failing element will be shown and the error will become the user in the Text form described. 3.3.2 Labeling for the necessary inputs of the users are indications or labels (labels) to be made available. 3.3.3 Corrections of correction If an input error is detected automatically and are Correction proposals are known to be made available to the user or the user, unless they are dangerous to the security or purpose of the content. 3.3.4 Error avoidance on websites which establish legal obligations or are too financial Users ' transactions, or modify data that can be controlled by users in data storage systems, or delete or send test responses from users, users have at least one of the
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The execution can be undone.
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The data you enter is checked for input errors and it is possible to correct them if necessary.
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The information can be viewed, corrected, and confirmed before it is finally sent.
Principle 4:
robustness content must be so robust that it can be used by as many user agents as possible, including assistive technologies, can be reliably interpreted.

Request 4.1The compatibility with user agents, including assistive technologies, is secure. conditions4.1.1 Syntax analysis content that are created with markup languages, consist of elements that have the following properties:
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You have full start and end tags,
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they will be according to their specifications nested,
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they do not contain duplicate attributes and
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all of their IDs are clearly,
unless their specifications permit this special. 4.1.2 Name, role, value All components of the user interface can be identified by programs. States, properties, and values that can be set by users can also be set by a program. For changes to these states, properties, and values, user agents, including assistive technologies, get a share. Priority II
Principle 1:
perceptibility-The information and components of the user interface are to be presented in such a way that they can be perceived by the users.

Request 1.2For time-controlled media, alternatives are available. Conditions1.2.6 Sign Language For pre-recorded audio content in synchronized media, translations in German sign language are available. 1.2.7 Extended Audio-DescriptionFor pre-recorded video content in synchronized media, an extended audio descript is provided. 1.2.8 Full-text alternative For recorded synchronized media, a full-text alternative is available. including all interactions. For recorded video files, a text alternative with equivalent information is available. 1.2.9 Live audio content For live broadcasts of audio content, a text alternative with equivalent information is to be provided.
Requirement 1.4Users are the perception of the content and the distinction between foreground and background to be facilitated as far as possible. conditions1.4.6 contrast In the visual presentation of text and fonts is the contrast ratio between foreground and background colour at least 7:1. A contrast ratio of at least 4.5:1 applies to large-scale typeface and typeface graphics. No minimum contrast is required for incidental texts and typewriters,
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the part of a inactive component of the user interface,
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which are purely decorative,
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which are incidental text in an image, or
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that are not visible to the user or the user.
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For text that is part of a logo or brand name, there are no minimum contrast requirements.
1.4.7 Background Noise Audio content that contains language in the foreground has no background noise or disconnectable background noise. Background noise is at least 20 decibels quieter than the language content in the foreground, unless it is just occasional sound effects, which last one or two seconds. Audio content, which is an audio-CAPTCHA or audio logo, as well as audio content, which primarily involves the musical expression, are exalted hereof. 1.4.8 Visual presentationIn the visual presentation of text blocks, mechanisms are available, which allow:
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foreground and background colors are from the users Users eligible,
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the row width is not more than 80 characters,
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the text is not aligned in the block set,
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the line spacing is at least 1.5 lines within the paragraphs,
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the distance between the paragraphs is greater than the line spacing and
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the text can be in full-screen mode without assistive technology up to 200%, without the user having to scroll a line of text horizontally.
1.4.9 Font graphics are used exclusively for decoration or in cases where
Principle 2:
Principle 2:
operability-The user interface components and navigation must be able to be served.

Request 2.1For all functionality, accessibility using the keyboard. conditions2.1.3 Keyboard operability The entire functionality of the content must be able to be operated via a keyboard interface without having to comply with certain time constraints for the individual keystrokes.
requirement 2.2The users are given sufficient time to read and use content. conditions2.2.3 No time limit time limits are at the event or the activity presented by the content shall not be approved. This does not apply to non-interactive, synchronized media and real time events. 2.2.4 Interrupt interruptions can be postponed or suppressed unless they are interruptions in Notfällen.2.2.5 Resignation When an authenticated session expires, it must be guaranteed that the activity can be continued without loss of data.
Request 2.3Content is to be designed in such a way that no seizures of epileptic seizures Conditions2.3.2 Three-time flashpages contain no elements that flash up more than three times over a period of one second.
Request 2.4The user or the user are orientation and navigational aids as well as help for finding content. Conditions2.4.9 Purpose of a left destination and the purpose of a link are visible from the link text itself. 2.4.10 Section headings are to be used in section headings, which are the Further structuring.
Principle 3:
Understanding-The information and operation of the User interface must be understandable.

requirement 3.1Texts are readable and understandable. Conditions3.1.3 Uncommon word for words or phrases in an uncommon or restricted sense- including dialects and specialist jargon, there are mechanisms to explain. 3.1.4 Abbreviations For abbreviations there is a mechanism that provides their written form or describes their meaning. 3.1.5 Simple SpracheFor all content is the clearest and easiest language to use, which is appropriate. In the case of difficult texts, additional explanatory content or graphical or audio presentations will be made available. 3.1.6 pronunciation For words whose meaning is not unambiguous without the correct pronunciation, there is a mechanism to which the correct pronunciation.
Request 3.2Web pages are to be designed in such a way that the structure and use are predictable sind.Conditions3.2.5 Context changes of the context will only be made on request by the user or the user or there is a mechanism to disable these changes.
Request 3.3For error prevention and correction, support is provided for input. Conditions3.3.5 Help Context-sensitive help is available 3.3.6 Error Avoidance: For websites that require users to submit information, they have at least one of the following:
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The execution can be undone.
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The data you enter is checked for input errors and it is possible to correct them if necessary.
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The information can be seen, corrected, and confirmed before it is finally sent.
Glossary abbreviation-abbreviated form of a word, sentence, or of a name that is limited to the written language, so the short form is not spoken as such. Abbreviations also include short-term mortars, which are formed from the initial letters or syllables of a word group or composition and can be pronounced as a word (acronyms or initial words). Alternative for time-controlled Media document that contains a correctly decrypted textual description of time-controlled visual and acoustic information, and provides a means to achieve the results of all time-controlled interrelationships. A script written for the content-based design of synchronized media corresponds to this definition only if it has been post-edited according to the published version of the synchronized media. Technology software or hardware specifically designed to help disabled people use the computer, with the boundary between user agent and assistive technology being fluid. The following assistive technologies are important in the context of this Regulation:
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Screen Lupen and Other visual aids to assist blind and visually impaired people reading, which both change the font, size, character distance and color, and synchronize with language, in order to make the readability and visibility of To improve or enable texts and images;
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Screenreader used by blind people to provide textual information in language or braille
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Lecture software for blind and visually impaired people. People with a learning or mental disability;
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Speech recognition software, for example,
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alternative keyboards, for example, For people with physical and physical disabilities;
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alternative pointing devices used by physically disabled people to activate mouse or button activation .
Audio technology for sound reproduction. With it, sounds can be produced synthetically or recorded by real sources. A combination of both methods is also possible. Audio-DescriptionThe soundtrack added description of important visual details, whose understanding does not result solely from the main track. It is also called "video description" and "descriptive signs". An audio-descript of video content provides information about actions, characters or actors, scene changes, text on the screen, and other visual content. In standard audio-descriptors, the description is added in breaks between the dialogs (see also "enhanced audio-describing"). If all the information of the video is already included in the existing sound track, no Changes in the context meaning changes in content of a website, which-if it is carried out without any knowledge or intent of the user or the user-in particular the users confuse, which cannot overlook a whole page at once. Changes in context include changes
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of the user agent,
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of the viewport (the screen area in the web browser window, the for the representation of the web content is actually available),
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the focus and
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the content when it affects the meaning of the web page.
Notes: Content changes do not always represent a change in the context. This applies, for example, to the insertion of an extended outline or a dynamic menu, unless they change one of the above-mentioned points. User's agent software for accessing the user or the user to web content. This includes web browsers, multimedia players, plug-ins and other programs-including assistive technologies-that support users when accessing web content. User interface allows users to enter input and sets out the presentation of these inputs. Specific sensory experience A sensory experience that is not purely decorative and does not primarily express important information or perform a function. Software can show a component in the web content for users. Identifiers can be hidden and only available to assistive technologies. In contrast to the identifier, a label (label) is presented to all users. In many cases, labeling and identifiers are the same. Blinkenalternates between two visual states in a way that should attract attention. CAPTCHAAbbreviation for " Completely Automated Public Turing test to tell Computers and Humans Apart ", named after the British mathematician A. M. Turing. CAPTCHA literally means "fully automatic public turning test to distinguish computers and people". A Turing test consists of a system of tests to distinguish a human from a computer. CAPTCHAs are often asked to enter a text that is displayed in an unclear picture or in an audio file with background noise. Programs recognizable by programs are recognizable by programs, if by a Software that is provided by the author or the author in such a way that user agents, including assistive technologies, recognize this content and are available to users in different ways. By means of programs of specific link context Additional information, which can be identified by relationships with a hyperlink through programs, combined with the link text and the users in various modalities. Because Screenreader interprets character setting, they can provide the context when the focus is on a link. Programs are set to be used when the software uses methods that are used by user agents, including assistive technologies. Real-Time Event An event that happens at the time of seeing and is not fully generated by the content. Real-time events are, for example, For example, online auctions where bids can be made and the auction can be tracked at the same time. User input errors entered by users not accepted by the system. Content that illustrates or clarifies existing content. Advanced Audio-DescriptionAn extended audio descreption interrupts a video in its course and supplements it with an additional audio description. Extended audio-descriptors are inserted only if the meaning of the video is lost without it and the pauses between dialog and audio descript are too short. Advanced subtitles (Captions) Synchronized visual alternative and/or Text-Alternative for linguistic and non-verbal audio-information needed to understand the content of the media. Advanced subtitles are basically similar to subtitles that reflect spoken dialogues. In addition, they also include non-verbal audio information (such as: a. sound effects, music, laughter), which are necessary to understand the content of the program. Extended subtitles should not affect relevant information in the video. Audio-descriptors do not need to be provided with advanced subtitles, as they are descriptions of information that have already been presented visually. One distinguishes between "Closed Captions" and "Open Captions": "Closed Captions" can be switched on or off when the player allows it to be switched off. "Open Captions" cannot be shut down. Functionality The interaction of several functions in order to solve certain tasks. It can be initiated by actions of the users. Sign Language As sign language one refers to a self-contained, visually perceptible natural language, which in particular of deaf and hard-of-hearing people to communicate is used. Sign language consists of combined signs (sign), which are mainly formed with hands, in combination with mimic and mouth (voiceless words or syllables) and in context with posture."general flash"-or "red flash"-low threshold for flashing or a fast changing image sequence. A flash or a fast-changing image sequence is below this limit if either of the following is true:
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There are no more than three general flashes ("general flash") and/or no more than three red flashes ("red flash") within a second.
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The contiguous range of flashing flashes simultaneously occupies no more than the total of 0.006 steradians within a 10 degree visual field on the Screen (25% of any 10-degree field of view on the screen) at a standoff typical for viewing a screen. The following definitions apply: General flash: A pair of opposite changes of the relative luminance by 10% or more than the maximum relative luminance, wherein the relative luminance of the darker images is less than 0.80, and where "a pair of counteracting changes" is an increase followed by a decrease or a decrease in the luminance of the light. a decrease followed by an increase ist.Red flash ("red flash") :Any pair of opposite transitions that have a saturated red. Exception: A flash, which represents a fine balanced pattern (such as, for example, For example, a white noise or a changing chessboard pattern, where the squares on a page are less than 0.1 degrees, do not exceed the threshold values. Notes: For general software or web content, the use of one on the display area of any placed 341 x 256 pixel display area at a screen resolution of 1024 x 768 pixels a good estimate of a 10 degree field of view for standard screen sizes and standard distances of the eyes Screen (e.g. B. 15-to 17-inch screen at 59 to 66 cm distance). Since higher resolution screens display the content in the same way with smaller and sharper images, the lower resolution is used to define the limit values. A "transition" is the change in the relative luminance (or relative color saturation at red flashes) between adjacent maximum and low values in the curve of the relative luminance measurement (or the relative colour saturation measurement at red flashes) as a function of time. A flash is made up of two opposite transitions. The current working definition for "any pair of opposite transitions that bring a saturated red" is:
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if for either one or both states of each transition: R/(R + G + B) > = 0.8,
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and if for both states of each transition the change in the values of (R-G-B) x 320 > 20 [negative values of (R-G-B) x 320 are set to 0]
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R, G, and B values range from 0 to 1, as specified in the relative luminance definition.
Tools that are available for analysis of video screen shots. However, it is not necessary to evaluate this condition if a flashing with three or less flashes per second occurs. The content then meets the requirements.
IDShortform for identifier, where a unique identifier is meant in HTML and XML documents. Content-summarizing the information and sensory experience that are provided by users by User Agent is mediated. This includes code or markup, which defines the structure, presentation, and interactions of the web content. Components of the user interface are parts of the content and are used by users as a single control element for a single user interface. a unique function. User interface components include both form elements and links as well as components created by scripts. Several components of the user interface can be implemented as a single programmatic element. Components here are not exclusively tied to programming techniques, but also to the perception as a single control element by users. Context context in connection with this regulation contains the following elements:
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user-agent,
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viewport (display area in the web browser window that is actually available to represent the web content),
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focus and
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content that affects the meaning of the web page.
Context-sensitive Help help that provides information about the currently running function. Contrast ratio The contrast ratio is calculated from: (L1 + 0.05)/(L2 + 0.05), where
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L1 is the relative luminance of the front or background colors, and
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L2 the relative luminance of the darker front or background colors.
Notes: Contrast ratios can range from 1 to 21 (1: 1 to 21: 1). between foreground and background can be evaluated when the contour equalization is switched off. In terms of conditions 1.4.3 and 1.4.6, the contrast is captured from the defined background before which the text is presented. If no background color is set, a white background is selected. Background color is the specified color on which the text is represented. An error occurs when the color of the text is fixed, but the background color is not; for users, the default background color is unknown and therefore cannot be rated as sufficiently contrasted. The same applies to non-defined texts in combination with a colour defined background. The contrast between letters can change the contrast and are included in the determination of the contrast between the letter and the background. A narrow border is then treated as part of the letter, a wide border that fills the inner parts of letters as background. The fulfillment of the requirements and conditions should be evaluated for color pairs that are typically pregiven in terms of content, so that a writer or an author expects them to lie next to each other. Authors do not have to present any uncommon presentations (such as: The user or the user shall consider the change of colour), except when the user is responsible for the change in colour. Controllable data, which are designed to allow users to access them (e.g. Label (label) text or other component with a text alternative that is presented to the users in order to show a component in the web content. A label (label) is presented to all users, while an identifier can be hidden and only available to assistive technologies. In many cases, labels and identifiers are the same. The term is not only limited to the label element in HTML.Link (hyperlink) reference in an electronic document to any reference target. The reference target can be found in any source that can be accessed via the electronic data exchange. LiveLive is information that is captured by a real event and the recipient without a delay of the transmission any delay in the event of a delay. The transmission delay is only a short technical delay and is not sufficient for a substantial content preparation. Completely computer-generated information is not live. Subtitles and text alternatives can, for example, be provided by the simultaneous input or preparation of prepared texts as live subtitles and live text alternatives. Markup SpracheAlso called "markup language". Markup language is a category of programming languages that includes, for example, Hypertext Markup Language (HTML) or Extensible Markup Language (XML). Markup languages are based on the SGML (Standard Generalized Markup Language) established in ISO 8879. They serve in their specific fields of application of the logical description of content, the exchange of data or the definition of further markup language. Mechanisms process or technology, which is used to achieve a specific result . A mechanism can be specifically provided in the content or by the platform or the user agent, including assistive technologies. The mechanism must satisfy all the requirements and conditions placed on it. Media-Alternative for Text Media, which does not provide more information than those that are already directly represented in the text or by means of text alternatives. A media alternative to the presentation of text is provided for those users who benefit from alternative presentations of the text. Media alternatives to represent text can be pure audio, pure video (including sign language videos) or mixed audio-video representations. Natural language spoken, written or spoken by characters, which has historically developed and interpersonal communication dient.NavigationMensch-Computer-interaction possibility to select programs and files. This type of navigation refers to the graphical user interface of a computer and its screen display. Using selectable buttons and pictograms, users can access programs, select files, and fill them with content. Navigation SequenzThe navigation sequence is the order of the element to element progressive focus changes when a keyboard interface is used for navigation. Non-text content content that does not represent a sequence of letters that can be recognized by programs or whose sequence does not represent a natural language. Non-text content is also ASCII drawings (pattern of letters), emoticons (strings of punctuation characters that mimic a smiley), Leetspeak (replacing letters with similar-looking digits and special characters) or images, the text abbilden.Presentation content, which is presented in a form which is perceptible to the user or the user. Legal commitments transactions in which the user or the user enters into an agreement from which legally binding Rights and obligations arise. Rein's decorative elements serve only an aesthetic purpose, do not provide any information and do not have any further functions. A text is purely decorative if the words can be rearranged or replaced and only the aesthetic purpose remains fulfilled. Pure audio A time-dependent representation consisting exclusively of audio content (no video and no video). Reines VideoA time-dependent representation containing only video content (no audio and no interactions). Relative LuminanzThe relative brightness of any point in the color space, normalized to 0 for the darkest black dot and normalized to 1 for the brightest white dot. Notes: In the default red-green-blue color space (sRGB-color space), the relative luminance is defined as
L = 0.2126 * R + 0.7152 * G + 0.0722 * BWhere R, G, and B are Defines:
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if RsRGB < = 0.03928 then R = RsRGB/12,92 else R = [ (RsRGB + 0.055)/ 1,055]2.4
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if GsRGB < = 0.03928 then G = GsRGB/12,92 otherwise G = [(GsRGB + 0.055)/1,055]2.4
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if BsRGB < = 0.03928 then B = BsRGB/12,92 otherwise B = [(BsRGB + 0.055)/1,055]2.4
and thereby RsRGB, GsRGB, and BsRGB are defined as:
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RsRGB = R8bit/255
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GsRGB = G8bit/255
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BsRGB = B8bit/255.
Almost all of the systems that are currently in use to view web content, presuppose a sRGB encryption. Unless it is known that a different color space is used to display and process the content, authors should evaluate this arbitrary point by using the sRGB color space. If a different color space is used, the minimum contrast ratio of the condition 1.4.3.If after the output error diffusion (dithering) occurs, then the value of the source color is used. For colours that fluctuate at the origin, the average values of the colours should be used (average R, average G, average B). There are aids available which are the calculation for testing the contrast and lightning. A Mathematical Markup Language (MathML) version of the relative luminance definition is available.RolleText or number at which a software will recognize the function of a component within a web content. kann.Font text, which is represented in non-textual form (for example, as an image or in an image) in order to achieve a certain visual effect. This does not apply to a text that is part of an image that has a different essential visual content. The structure is the way in which parts of a web page are organized in relation to other parts, as well as the organization of a collection of Webpage.Synchronized media synchronised media are audio and video content that are synchronized with other formats for the presentation of information and/or with time-dependent interactive components. This does not apply to media, which is clearly marked as a media alternative for text. The tag award of a data collection with additional information, which varies according to the area of use. Keyboard-interface-software interface for input via the keyboard. A keyboard interface allows users to operate programs via the keyboard, even though the original technology does not have a keyboard. A text sequence of letters that are recognizable by programs and something in natural Language explicitly t.Text alternative through programs of discernible text, which is used instead of a non-text content, or text that is used in addition to a non-text content and to which the text of the program is intended to be used Non-common dictionaries, whose use it is necessary to explain the meaning to the users, in order to ensure that they correctly understand the content. The web offer collection of websites that have a common purpose and that come from the same author, or the same author, the same group or organization. Different language versions are treated as different series of web pages. VideoThe technique of moving or consecutive photos or images. Video can consist of animated or photographic images or from both. Full-screen mode viewable in standard laptops and computers of screen size. Full-text alternative for synchronized media including any interaction document with a written description of all visual locations, actions, speakers and non-verbal sounds, as well as the transcripts of all dialogues, in the correct order; in combination with the possibility of Results obtained through interaction (if present) in the course of the synchronized media. A script that is used for the creation of synchronized media is covered by this definition only if it is corrected according to the final synchonized medium after editing. WebseiteA non-embedded source of a single address (URL), which uses HTTP, as well as any other sources used for rendering by a User agents are required or are intended for rendering by a user agent with the content. Although any other source would be rendered together with the original source, they would not necessarily be rendered together at the same time. For the purpose of compliance with these guidelines, a source must be "not embedded" within the scope of conformity in order to be considered as a web site. Fundamentally change the functionality of the content. In addition, information and functionality cannot be achieved in a different way. Timesy media combination of various media (e.g. Text, image, animation, audio, video) with interactive time-dependent components. The aim of the time-controlled media is to make information controllable and thus to increase the understanding of the users. The purpose of a left-handed result, which is achieved by activating a hyperlink.

Footnote

Annex 1 Glossary Full-text alternative for synchronized media, including any interaction set 2 italic print: should be properly "synchronized" unofficial Table of contents

Appendix 2 (to § 3 (2) and § 4 (1))

(Fundstelle: BGBl. I 2011, 1859)

Part 1For the provision of information in German sign language on the Internet or intranet, the following specifications apply:
1.
Shadows on the body of the actress or the performer are to be avoided. The mimic and the mouth image must be clearly visible.
2.
The background is static. A black or white background is to be avoided.
3.
The background as well as the clothing and hands of the actress or the performer are in contrast to each other. The clothing should be dark and colour-coloured.
4.
The video is marked by the logo for the German Sign Language. The color design of the logo can be adapted to the respective design of the appearance
symbol for German sign language 1
Quelle:http://www.dgs-filme.de/GWHomepage/dgslogo_ls.htmbzw.http://www.dgs-filme.de/GWHomepage/images/dgs_symbol_57.png
5.
The resolution is at least 320 x 240 pixels.
6.
The image sequence is at least 25 images per second.
7.
The sign language movie is also available as a downloadable file.
The size of the file and the playback time are available.
Part 2For the The provision of information in the light language on the Internet or intranet is subject to the following guidelines:
1.
Abbreviations, hyphenation at the end of the line, negations as well as conjunctive, passive, and genitive constructions are to be avoided.
2.
The readers should be personally addressed, as far as content is meaningful.
3.
The terms are to be used consistently in the same way.
4.
Short, common terms and To use redeeming applications. Abstract terms and foreign words must be avoided or explained with the help of concrete examples. Compound nouns are to be separated by hyphen.
5.
There are short sentences with a clear sentence structure.
6.
Avoiding special characters and inserts in brackets.
7.
Content is through paragraphs and Logically structure headings. Enumerations with more than three points are to be divided by lists.
8.
Important content is to be preceded.
9.
There are clear fonts with clear contrast and with a font size of at least 1.2 em (120 percent). Important information and headings should be highlighted. A maximum of two different fonts are to be used.
10.
Text will be left-justified. Each record starts with a new line. The background is bright and monochrome.
11.
meaningful icons and images are to be used.
12.
The addresses are not to be written as flow text.
13.
Tables are clearly visible