Changes for page Erstellung barrierefreier Inhalte

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...	...	@@ -33,18 +33,22 @@
33	33	{{/column}}
34	34	{{/section}}
35	35
36		-== ==
37	37
38	38	== Course-related accessibility statement ==
39	39
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.
	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	+
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	+
42	42	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.
46	46
	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.
47	47
	50	+
	51	+
48	48	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.
49	49
50	50	{{panel title="Further information"}}
...	...	@@ -53,8 +53,10 @@
53	53	{{/panel}}
54	54
55	55
56		-== How do I structure content? ==
	60	+== Tips for designing content ==
57	57
	62	+=== How do I structure content? ===
	63	+
58	58	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.
59	59
60	60	{{info}}
...	...	@@ -228,8 +228,10 @@
228	228	* [[HTML als Auszeichnungssprache / Semantik (SELFHTML-Wiki)>>https://wiki.selfhtml.org/wiki/HTML/Tutorials/Entstehung_und_Entwicklung#HTML_als_Auszeichnungssprache||shape="rect"]]
229	229	{{/panel}}
230	230
231		-== How can texts be made easy to read? ==
232	232
	238	+
	239	+=== How can texts be made easy to read? ===
	240	+
233	233	Font, font size, character and word spacing, line length and many other factors influence the readability of texts.
234	234
235	235	* Make sure to use **common fonts** (like Arial) and avoid fancy or hard-to-read ones.
...	...	@@ -249,8 +249,9 @@
249	249	{{/panel}}
250	250
251	251
252		-== How should links be set? ==
253	253
	261	+=== How should links be set? ===
	262	+
254	254	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.
255	255
256	256	{{info}}
...	...	@@ -258,13 +258,14 @@
258	258	{{/info}}
259	259
260	260
261		-== What should be considered when using media? ==
262	262
	271	+=== What should be considered when using media? ===
	272	+
263	263	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.
264	264
265	265	Here are some tips you might find useful regarding accessibility and mobile compatibility.
266	266
267		-=== File size ===
	277	+==== File size ====
268	268
269	269	* For photos, JPEG format should be preferred and medium to high quality should be selected depending on the image content.
270	270	* Images should not exceed a file size of 100-200kB.
...	...	@@ -275,7 +275,7 @@
275	275	Common image editing programmes and online tools can help to compress images without any visible loss of quality.
276	276	{{/info}}
277	277
278		-=== Captions ===
	288	+==== Captions ====
279	279
280	280	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.
281	281
...	...	@@ -290,8 +290,10 @@
290	290	</figure>
291	291	{{/code}}
292	292
293		-=== Alternative text (alt text) ===
294	294
	304	+
	305	+==== Alternative text (alt text) ====
	306	+
295	295	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.
296	296
297	297	**The following should be kept in mind when providing alt text for images:**
...	...	@@ -305,18 +305,18 @@
305	305	{{/info}}
306	306
307	307
308		-==== How to store alternative text in the Tiny MCE text editor ====
	320	+===== How to store alternative text in the Tiny MCE text editor =====
309	309
310	310	[[image:Texteditor-Bilder-Alternativtext.png||data-xwiki-image-style="img-screen" data-xwiki-image-style-border="true" width="500"]]
311	311
312	312
313		-==== HTML code for alt text ====
	325	+===== HTML code for alt text =====
314	314
315	315	{{code}}
316	316	<img ... alt="Der Schaum auf einem Kaffee bildet ein schreiendes Gesicht." />
317	317	{{/code}}
318	318
319		-==== How to mark an image as decorative ====
	331	+===== How to mark an image as decorative =====
320	320
321	321	[[image:Texteditor-Bilder-dekorativ.png||data-xwiki-image-style="img-screen" data-xwiki-image-style-border="true" height="224" width="300"]]
322	322
...	...	@@ -337,6 +337,8 @@
337	337	* [[Five golden rules for compliant alt text>>url:https://abilitynet.org.uk/news-blogs/five-golden-rules-compliant-alt-text||shape="rect"]]
338	338	{{/panel}}
339	339
	352	+
	353	+
340	340	=== Optimizing images for smartphones and tablets ===
341	341
342	342	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.
...	...	@@ -347,6 +347,8 @@
347	347	<img src="..." style="max-width: 100%" />
348	348	{{/code}}
349	349
	364	+
	365	+
350	350	=== Providing alternatives for videos and audio files ===
351	351
352	352	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.
...	...	@@ -364,6 +364,7 @@
364	364	{{/panel}}
365	365
366	366
	383	+
367	367	== Colours & contrasts ==
368	368
369	369	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"]]).