Changes for page Erstellung barrierefreier Inhalte

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...	...	@@ -33,22 +33,18 @@
33	33	{{/column}}
34	34	{{/section}}
35	35
	36	+== ==
36	36
37	37	== Course-related accessibility statement ==
38	38
39		-Public bodies, including state universities and schools, are legally obliged to produce an accessibility statement for their digital offerings. This statement describes the extent to which accessibility requirements are met and, where applicable, identifies areas that are not accessible. Further information can be found on the official website for the accessibility statement for web and app applications of the Federal Government.
40		-
	40	+Public bodies, including state universities and schools, are legally obliged to produce an accessibility statement for their digital offerings. This statement describes the extent to which accessibility requirements are met and, where applicable, identifies areas that are not accessible. Further information can be found on the official website for the accessibility statement for web and app applications of the Federal Government, accessible via the link https:~/~/www.barrierefreiheit-dienstekonsolidierung.bund.de/Webs/PB/DE/ barrierefreie_it/uebergreifende-anforderungen-web-und-app/erklaerung-zur-barrierefreiheit/erklaerung-zur-barrierefreiheit-node.html.
41	41	A declaration at the software level covers the functions of the learning platform, but not the content of individual courses. However, since an OPAL course consists mainly of learning materials for which the course coordinators are responsible, it makes sense to provide a course-related accessibility statement.
42		-
43		-
44	44	To make it easier for teachers to create such a statement, TU Dresden provides the LMS Check Generator for accessibility. The tool enables course administrators to:
	43	+ create a course-specific accessibility statement,
	44	+ identify potential barriers in texts, media and interactive content,
	45	+ provide support for the accessible design of teaching materials.
45	45
46		-* create a course-specific accessibility statement,
47		-* identify potential barriers in texts, media and interactive content,
48		-* provide support for the accessible design of teaching materials.
49	49
50		-
51		-
52	52	The tool guides you step by step through the creation of the declaration. The person responsible selects the course modules used in the course and then receives a checklist for the content. The generated declaration is provided as an accessible HTML file and can be embedded in the course as a page using the ‘Single Page’ course module. This means that the declaration is directly available in the course and easy for learners to find.
53	53
54	54	{{panel title="Further information"}}
...	...	@@ -57,10 +57,8 @@
57	57	{{/panel}}
58	58
59	59
60		-== Tips for designing content ==
	56	+== How do I structure content? ==
61	61
62		-=== How do I structure content? ===
63		-
64	64	When structuring texts on websites or in documents, it makes sense to use books or articles as a guideline. The headlines, bulleted lists, table of contents and visual highlighting used there help to improve readability, skimming or scanning with the eyes, and, therefore, make it easier to find relevant information quickly. These elements also help users to find their way around the site. In addition to visual structuring through design, technically correct structuring by means of suitable HTML elements is also necessary. This is particularly relevant for accessibility, as screen readers and other assistive technologies transmit information based on HTML code and provide various functions.
65	65
66	66	{{info}}
...	...	@@ -234,10 +234,8 @@
234	234	* [[HTML als Auszeichnungssprache / Semantik (SELFHTML-Wiki)>>https://wiki.selfhtml.org/wiki/HTML/Tutorials/Entstehung_und_Entwicklung#HTML_als_Auszeichnungssprache||shape="rect"]]
235	235	{{/panel}}
236	236
	231	+== How can texts be made easy to read? ==
237	237
238		-
239		-=== How can texts be made easy to read? ===
240		-
241	241	Font, font size, character and word spacing, line length and many other factors influence the readability of texts.
242	242
243	243	* Make sure to use **common fonts** (like Arial) and avoid fancy or hard-to-read ones.
...	...	@@ -257,9 +257,8 @@
257	257	{{/panel}}
258	258
259	259
	252	+== How should links be set? ==
260	260
261		-=== How should links be set? ===
262		-
263	263	Links need meaningful titles and should describe the purpose or destination of the link. Ambiguous link texts such as ‘more’, “here” or ‘read more’ should be avoided. Relevant information about the format or size of a file (e.g. for a download link) should also be included in the linked text.
264	264
265	265	{{info}}
...	...	@@ -267,14 +267,13 @@
267	267	{{/info}}
268	268
269	269
	261	+== What should be considered when using media? ==
270	270
271		-=== What should be considered when using media? ===
272		-
273	273	When using media, consider not only storage consumption and loading times, but also its accessibility on the go, e.g. on a smartphone with a poor internet connection. Ensure that information is always available via a second channel, such as text.
274	274
275	275	Here are some tips you might find useful regarding accessibility and mobile compatibility.
276	276
277		-==== File size ====
	267	+=== File size ===
278	278
279	279	* For photos, JPEG format should be preferred and medium to high quality should be selected depending on the image content.
280	280	* Images should not exceed a file size of 100-200kB.
...	...	@@ -285,7 +285,7 @@
285	285	Common image editing programmes and online tools can help to compress images without any visible loss of quality.
286	286	{{/info}}
287	287
288		-==== Captions ====
	278	+=== Captions ===
289	289
290	290	Captions or titles provide additional information about images. A title is necessary if important information about the image needs to be conveyed. Unlike image descriptions (alternative text), titles are also accessible to sighted users.
291	291
...	...	@@ -300,10 +300,8 @@
300	300	</figure>
301	301	{{/code}}
302	302
	293	+=== Alternative text (alt text) ===
303	303
304		-
305		-==== Alternative text (alt text) ====
306		-
307	307	You should always provide alternative text for images that are relevant to the content of a page. Alt text is read out by screen readers and, therefore, accessible to blind people. Even if the images on the page are disabled or cannot be loaded due to a slow internet connection, the information can still be conveyed despite the missing image.
308	308
309	309	**The following should be kept in mind when providing alt text for images:**
...	...	@@ -317,18 +317,18 @@
317	317	{{/info}}
318	318
319	319
320		-===== How to store alternative text in the Tiny MCE text editor =====
	308	+==== How to store alternative text in the Tiny MCE text editor ====
321	321
322	322	[[image:Texteditor-Bilder-Alternativtext.png||data-xwiki-image-style="img-screen" data-xwiki-image-style-border="true" width="500"]]
323	323
324	324
325		-===== HTML code for alt text =====
	313	+==== HTML code for alt text ====
326	326
327	327	{{code}}
328	328	<img ... alt="Der Schaum auf einem Kaffee bildet ein schreiendes Gesicht." />
329	329	{{/code}}
330	330
331		-===== How to mark an image as decorative =====
	319	+==== How to mark an image as decorative ====
332	332
333	333	[[image:Texteditor-Bilder-dekorativ.png||data-xwiki-image-style="img-screen" data-xwiki-image-style-border="true" height="224" width="300"]]
334	334
...	...	@@ -349,8 +349,6 @@
349	349	* [[Five golden rules for compliant alt text>>url:https://abilitynet.org.uk/news-blogs/five-golden-rules-compliant-alt-text||shape="rect"]]
350	350	{{/panel}}
351	351
352		-
353		-
354	354	=== Optimizing images for smartphones and tablets ===
355	355
356	356	For images to be displayed in full on small-screen devices and without users having to scroll horizontally, the maximum width in HTML should be limited to 100%. This ensures that the image is only displayed in the selected size until it is wider than the available space on the screen.
...	...	@@ -361,8 +361,6 @@
361	361	<img src="..." style="max-width: 100%" />
362	362	{{/code}}
363	363
364		-
365		-
366	366	=== Providing alternatives for videos and audio files ===
367	367
368	368	When using media, make sure to always offer the info in an alternative format. In addition to image descriptions (alternative text) for images, think about pure audio content (e.g. podcasts) and video content with images and sound.
...	...	@@ -380,7 +380,6 @@
380	380	{{/panel}}
381	381
382	382
383		-
384	384	== Colours & contrasts ==
385	385
386	386	When selecting colours, make sure there is **sufficient contrast between the background and text colours.** Black on white generally offers the best **contrast ratio**, which should be at least** 4.5:1 **([[WCAG 2.1 - Contrast>>url:https://www.w3.org/TR/WCAG21/#contrast-minimum||shape="rect"]]).