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)

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BITV 2.0

Date of completion: 12.09.2011

Full quote:

" Barrier-free Information Technology-Ordination of 12 September 2011 (BGBl. I p. 1843) "

Footnote

(+ + + Text proof: 22.9.2011 + + +) 

  

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Input formula

Pursuant to Article 11 (1), second sentence, of the Act on Equal Opportunities for Disabled Persons, as last amended by Article 12 of the Law of 19 December 2007 (BGBl. 3024), the Federal Ministry of Labour and Social Affairs is responsible for: Unofficial table of contents

§ 1 Scope of validity

The Regulation shall apply to the following offers from the authorities of the Federal Administration:

1.

Web sites and offers,

2.

Intraneascates and offers which are publicly accessible, and

3.

graphic program surfaces realized by means of information technology, which are accessible to the public.

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§ 2 Relating groups of disabled persons

The design of the information technology offers mentioned in § 1 is intended to help disabled persons within the meaning of § 3 of the Act on Equal Opportunities for Disabled Persons, those without the fulfilment of additional conditions the use of information technology. it is possible to open access to it only to a limited level. Unofficial table of contents

§ 3 Applicable Standards

(1) The information technology tenders referred to in § 1 shall be designed in accordance with Annex 1 in such a way 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 in the For the purposes of Section 7 (1), first sentence, of the Act on Equal Opportunities for Disabled Persons, the following explanations are to be made available in German Sign Language and in the Light Language according to Appendix 2:

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information about the content,

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navigation considerations and

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Information on further information in German sign language or in the light language.

The requirements and conditions of Appendix 1 shall remain unaffected. Unofficial table of contents

§ 4 Implementation deadlines for the standards

(1) The offers referred to in § 1, which are to be redesigned by 22 March 2012, or which are modified or adapted to a substantial extent or to a greater extent, shall be drawn up in accordance with § 3. At least one access path to the above offers shall comply with the requirements and conditions of priority I of Appendix 1 with the activation of these tenders. (2) Offers in accordance with § 1 (1) and (2), which shall be subject to the conditions referred to in the first sentence of paragraph 1. No later than 22 September 2012 shall be published in accordance with Section 3 (1). In addition, they shall be designed in accordance with § 3 (2) no later than 22 March 2014. (3) For tenders referred to in paragraph 2, the Barrier-free Information Technology Ordination of 17 July 2002 (BGBl. 2654). Unofficial table of contents

§ 5 Impact Assessment

(1) The Regulation shall be regularly reviewed, 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 its entry into force. Unofficial table of contents

§ 6 Entry into force, expiry of the external force

This Regulation shall enter into force on the day following the date of delivery. At the same time, the Barrier-Free Information Technology Ordination of 17 July 2002 (BGBl. 2654). Unofficial table of contents

Appendix 1 (to § 3 and § 4 (1))

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

Priority I

Principle 1:

Visibility-The information and components of the user interface are to be presented in such a way that they can be perceived by the users.

Requirement 1.1For each non-text content, alternatives are to be made available in text form, which can be adapted to the needs of users. Condition1.1.1 Non-text content For each non-text content that is available to the user or to the user. The user will be presented with a text alternative that will serve the purpose of this content. Text alternatives do not have 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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These are time-controlled media and text alternatives, which already contain at least one descriptive explanation of the non-text content.

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These are tests or exercises that need to be presented in the 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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Certain sensory experiences are to be provided and text alternatives, which already contain at least one descriptive explanation of the non-text content, are 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 and described by text alternatives and alternative CAPTCHAs with different output modes for different types of sensory perception.

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These are 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 in such a way that they are designed by assistive devices. Technologies can be ignored.

Requirement 1.2For time-controlled media, alternatives are available. Conditions1.2.1 Recorded audio and video files For recorded pure audio and pure video files, which are not already a media alternative for text, and as such are clearly identified, the following must be provided:

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For content of 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) Extended subtitles (Captions) are to be provided for recorded audio content of synchronized media. 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 to provide audio describing. 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 can be presented in different ways without any loss of information or structure. Conditions1.3.1 Information and relationships All information, structures and relationships that are provided by Layout and presentation are mediated by programs or in text available.1.3.2 Meaningful sequencing If the order in which the content is presented has an impact on its meaning, the right order is the right Read sequence through programs recognizable. 1.3.3 Sensory feature instructions In order to understand and use the content, it is not based exclusively on sensory characteristics of the elements, such as B. Shape, size, visual placement, orientation or sound.
Requirement 1.4Users are the perception of the content and the distinction between foreground and background to be facilitated as far as possible. Conditions1.4.1 Colour colour is not the only means to use information on , to display an action, to initiate a reaction, or to identify a visual element. 1.4.2 Audio controllers For audio elements that are automatically played on a web page for more than three seconds, there is

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either a mechanism for breaking down or ending the tone, or

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A mechanism for controlling the volume irrespective of the system volume.

1.4.3 Contrast Contrast in the visual presentation of text and writing the contrast ratio between foreground and background color is at least 4.5:1. A contrast ratio of at least 3:1 applies to large-scale typeface and typeface typeface graphics. No minimum contrast is required for incidental texts and written graphics,

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that are part of an inactive component of the user interface,

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that are purely decorative,

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where the text is an incidental text in an image, or

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that are not visible to the user or to the user.

Text that is part of a logo or brand name also does not apply to the minimum contrast.1.4.4 Modifiable text size The text can be enlarged to 200% without assistive technology, without it being possible to use the text as a logo or a brand name. Loss of content or functionality. 1.4.5 In writing, writing information shall not be used unless it is used in writing, 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 for the communication of the information of the text.

Principle 2:

Operability-The components of the user interface and the navigation must be able to be operated.

Requirement 2.1For all functionality, accessibility via the keyboard is secure. conditions2.1.1 Keyboard operability The entire functionality of the content must be able to be operated via a keyboard interface without certain The time constraints for the individual keystrokes must be observed. 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.
Requirement 2.2The users should be given sufficient time to read and use content. conditions2.2.1 Time-related requirements For each time limit specified by content, at least one of the following must be Possibilities to be given:

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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 time frame, which is at least ten times the default.

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The user or the 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 at least 10 times by the user or the user.

It is not necessary to adjust the time limit if:

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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 intended time limit,

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the time limit is necessary and by extension the activity would become invalid or

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the time frame is more than 20 hours.

2.2.2 Hold, terminate, hide information that moves, blink or scroll, and the

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deploy automatically,

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lasts longer than five seconds, and

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at the same time as other content,

must be able to be stopped, terminated or hidden, unless this movement is essential for an activity. Information that is automatically updated and the

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deploy automatically and

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at the same time as other content,

must be stopped, terminated, hidden or checked in its refresh rate unless this automatic update is essential for an activity.
Requirement 2.3Content is to be designed in such a way that no epileptic seizures are triggered. Condition2.3.1 Three-times flashing-Falling below the threshold value web pages do not contain any elements that are more frequent in a period of one second than three times, unless the flashes are below the "general flash" or "red flash" threshold.
Requirement 2.4The user or the user is provided with orientation and navigation aids as well as help for finding content. Conditions2.4.1 bypining element groups For groups of elements that are on several websites 2.4.2 Website title pages contain titles describing the topic or the purpose of the page. 2.4.3 Focus-sequence If the navigation sequence affects the meaning or operation of the page. of the website, the focus is on 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 certain link context. 2.4.5 Alternative access routes are offered to find 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 information and operation of the user interface must be understandable.

Requirement 3.1Texts are readable and understandable. Conditions3.1.1 Spray The predominant natural language of each web page is recognizable by programs. 3.1.2 Language of individual sections The natural language of all used Text passages or expressions can be recognized 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 focusing a component the focus, no change of context is deleted. 3.2.2 On input the setting of a User interface element changes, does not automatically result in a change of context, unless the user or user has been informed of this behavior before using the element. 3.2.3 Uniform Navigation navigation mechanisms, which are repeated within a web offer, occur for each repetition in the same order, unless the user or the user initiates a change. 3.2.4 Uniform recording In a web offer and within connected websites, elements with the same functionality is the same.
Requirement 3.3For error prevention and correction, supporting functions are provided for the input. conditions3.3.1 Failed identificationIf an input error is detected automatically, the failing element is shown and the error will be described to the users in text form. 3.3.2 Labeling for the necessary inputs of the users are indications or labels (labels) to be made available. 3.3.3 Proofreading An input error will automatically be made , and suggestions for correction are known, to make available to the user or to the user, unless they are dangerous to the security or purpose of the content. 3.3.4 Error prevention In the case of websites which justify legal obligations or financial transactions of the users, Users lead or modify data that can be controlled by users in data storage systems. Users and users will have at least one of the following options:

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The execution can be undone.

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The entered data will be checked for input errors and there will be a possibility 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 reliably interpreted by as many user agents as possible, including assistive technologies.

Requirement 4.1The compatibility with user agents, including assistive technologies, is secure. conditions4.1.1 Syntax analysis content created with markup languages consists of elements for which the following properties are: shall apply:

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You have full start and end tags,

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they are nested according to their specifications,

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they do not contain duplicate attributes and

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all of their IDs are unique,

unless their specifications allow 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. When these states, properties, and values are changed, user agents, including assistive technologies, receive a share. Priority II

Principle 1:

Visibility-The information and components of the user interface are to be presented in such a way that they can be perceived by the users.

Requirement 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 advanced audio descript is ready. 1.2.8 Full-text alternative For recorded synchronized media, a full-text alternative including all To provide 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 facilitate as much as possible. conditions1.4.6 contrast In the visual presentation of text and writing, the Contrast ratio between foreground and background color 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 written graphics,

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that are part of an inactive component of the user interface,

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that are purely decorative,

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where the text is an incidental text in an image, or

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that are not visible to the user or to the user.

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Text that is part of a logo or brand name also does not apply to the minimum contrast requirements.

1.4.7 Background Noise Recorded 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 linguistic content in the foreground, unless it is just occasional sound effects, which take 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 , which will enable:

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Foreground and background colors can be selected by the users,

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the line width is not more than 80 characters,

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the text is not aligned with the block set,

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the line spacing shall be 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 enlarged to 200% in full-screen mode without assistive technology, without the user having to scroll a line of text horizontally.

1.4.9 Font graphics are used exclusively for decoration purposes or in cases where a particular text presentation is an essential condition for the placement of the information.

Principle 2:

Operability-The components of the user interface and the navigation must be able to be operated.

Requirement 2.1For all functionality, accessibility via the keyboard is secure. condition2.1.3 Keyboard operability The entire functionality of the content must be able to be operated via a keyboard interface without certain The time constraints for the individual keystrokes must be observed.
Requirement 2.2The users should be given sufficient time to read and use content. conditions2.2.3 No time limit time limits are not present at the event or activity presented by the content . 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 is necessary to ensure that the activity can be continued without data loss after resigning.
Requirement 2.3Content is to be designed in such a way that no epileptic seizures are triggered. Condition2.3.2 Three-time flashpages contain no elements that flash up more than three times in a period of one second.
Requirement 2.4The user or the user is to provide orientation and navigation aids as well as help for finding content. Conditions2.4.9 Purpose of a left goal and the purpose of a link are from the link text itself 2.4.10 Section headings are to be used in section headings which further structure the content.

Principle 3:

Intelligibility-The information and operation of the user interface must be understandable.

Requirement 3.1Texts are legible and understandable. Conditions3.1.3 Uncommon dictionary words or phrases used in an unusual or restricted sense-including dialects and jargon-are available Mechanisms to explain. 3.1.4 Abbreviations For abbreviations, there is a mechanism that provides its written form or its meaning. 3.1.5 Simple language for all content is the clearest and easiest language to use, that 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.
Requirement 3.2Websites are to be designed in such a way that the structure and use are predictable sind.Conditions3.2.5 Context changes of the context are only initiated upon request by the user or the user, or there is a mechanism to to switch off these changes.
Requirement 3.3For error prevention and correction, support is provided for input. Conditions3.3.5 Help Context-dependent aids are available. 3.3.6 Error prevention: For websites that require users to be able to use the Users shall have at least one of the following options:

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The execution can be undone.

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The entered data will be checked for input errors and there will be a possibility to correct them if necessary.

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The information can be viewed, corrected and confirmed before it is finally sent.

Glossary abbreviation-abbreviated form of a word, a sentence or a name, which is limited to the written language; the short form is thus 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 running smoothly. The following assistive technologies are important in the context of this Regulation:

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Screen magnifiers and other visual aids to assist blind and visually impaired people reading, changing both the font, the size, the pitch and the color as well as synchronizing with speech, in order to make readability and readability Improve or enable the recognition of texts and images;

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Screen readers used by blind people to issue textual information in speech or braille;

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Lecture software for blind and partially sighted people People with a learning or mental disability;

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Speech recognition software, which For example, people with disabilities are used by disabled persons;

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alternative keyboards, for example B. for people with mental and physical disabilities;

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alternative pointing devices used by physically disabled people to simulate a 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 additional audio description is necessary. Change in the context-significant changes in content of a website which-if it is not aware of or not The intention of the user or the user will be made-in particular, the users could confuse, who cannot overlook a whole page at once. Changes in the context include changes

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user agent,

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the display area (the display area in the window of the web browser that is actually available for the presentation of the web content),

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the focus and

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of the content, if this affects the meaning of the website.

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 to access 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 a component in the web content for users can be shown. 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. Modalities can be selected and presented. Link-Context-Additional information, which can be identified by relationships with a hyperlink through programs, combined with the link text, and presented to the users in different modalities. Because Screenreader interprets character setting, they can provide the context when the focus is on a link. Programs are set by programs, if 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 is called a self-contained, visually perceptible natural language, especially of deaf and hard-of-hearing people. Communication is used. Sign language consists of combined signs (sign), which are mainly formed with the hands, in conjunction with mimic and mouth (voiceless words or syllables) and in context with posture. "general flash"-or " red flash " -threshold limit 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 fields of view on the screen). a typical distance for viewing a screen. The following definitions apply: General flash: A pair of opposite changes in the relative luminance by 10% or more than the maximum relative luminance, where the relative luminance of the darker images is less than 0.80, and where " a pair of counteracting changes " an increase followed by a decrease or a decrease followed by an increase ist.Red flash ("red flash") :Any pair of opposite transitions that bring a saturated red with them. Exception: A flash that represents a fine balanced pattern (such as 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 with it a saturated red" reads:

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if one or both states of each transition are valid: 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 will be 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 are available to perform an 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.

IDShort form for identifier, where a unique identifier is meant in HTML and XML documents. Content includes the information and sensory experience that is conveyed to the users by user agents. 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. Multiple user interface components can be deployed 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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Presentation field (display area in the window of the web browser, which is actually available for the presentation of the web content),

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Focus and

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Content that has an impact on the meaning of the website.

Context-sensitive help help that provides information about the function that is currently running. 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 illumination of the foreground or background colors, and

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L2 is the relative luminance of the darker foreground or background colors.

Notes: Contrast ratios can be between 1 and 21 (1: 1 to 21: 1). The contrast ratio between foreground and background can be evaluated with the contour equalization switched off. In terms of conditions 1.4.3 and 1.4.6, the The contrast is captured from the set 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 should consider the use of a colour change, 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 transmission delay. 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 decorative element edienes only one aesthetic purpose, do not provide any information and do not have any other 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 normalised to 1 for the brightest white Punkt.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 * BHere R, G and B are defined as follows:

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if RsRGB < = 0.03928 then R = RsRGB/12,92 otherwise 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 here 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 used today to view web content require sRGB encryption. If it is not 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 written in non-textual form (for example, as an image or in a Image) is displayed to achieve a certain visual effect. This does not apply to a text that is part of an image that has a different main visual content. The structure is the way in which parts of a web page are organized in relation to other parts, and the organization of a collection Synchronised media synchronised media are audio and video content, which 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 is different depending on 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 Non-common dictionaries, where it is necessary to use the Users should explain the meaning in order for them to correctly understand the content. Connected web site collection of websites that have a common purpose and which are shared by 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 any) in the course of 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 processing. wurde.WebseiteA non-embedded source of a single address (URL), which uses HTTP, as well as any other sources that are required for rendering by a user agent, or that are used to render a user agent with the content have been devised. 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 goal of time-controlled media is to make information controllable and thereby increase the understanding among the users. The purpose of a left-handed result, which is achieved by activating a hyperlink, is to be achieved.

Footnote

Appendix 1 Glossary full-text alternative for synchronized media including any interaction set 2 italic print: would have to be "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 guidelines apply:

1.

Shadows on the body of the actress or the performer are to be avoided. The mimic and the mouth need to be clearly visible.

2.

The background is to be made static. A black or white background is to be avoided.

3.

The background as well as the clothes and the hands of the actress or the performer stand in contrast to each other. The clothing is supposed to be dark and single-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 frames per second.

7.

The sign language film is also available as a file for download.
Information about the size of the file as well as the playback time are available.

Part 2For the provision of information in a light language on the Internet or intranet, the following guidelines apply:

1.

Abbreviations, hyphenation at the end of the line, negations as well as conjunctive, passive-and genitive constructions are to be avoided.

2.

As far as content is meaningful, the readers should be personally addressed.

3.

Terms are to be used consistently in the same way.

4.

Short, common terms and phrases shall be used. 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.

These are short sentences with a clear sentence structure.

6.

Special characters and canisters in brackets must be avoided.

7.

Contents are logically structured by paragraphs and headings. Enumerations with more than three points are to be broken down by lists.

8.

Important content is to be preceded by.

9.

Clear fonts with clear contrast and with a font size of at least 1.2 em (120 percent) must be used. Important information and headings should be highlighted. There are a maximum of two different fonts to use.

10.

Texts are aligned to the left. Each record starts with a new line. The background is bright and single-coloured.

11.

There are meaningful symbols and images to use.

12.

Addresses are not to be written as flow text.

13.

Tables are to be designed in a clear way.