Johnson, A.M.; Ruppert, S.: ¬An evaluation of accessibility in online learning management systems (2002)
0.01
0.014147157 = product of:
0.028294314 = sum of:
0.028294314 = product of:
0.056588627 = sum of:
0.056588627 = weight(_text_:systems in 4786) [ClassicSimilarity], result of:
0.056588627 = score(doc=4786,freq=6.0), product of:
0.16037072 = queryWeight, product of:
3.0731742 = idf(docFreq=5561, maxDocs=44218)
0.052184064 = queryNorm
0.35286134 = fieldWeight in 4786, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
3.0731742 = idf(docFreq=5561, maxDocs=44218)
0.046875 = fieldNorm(doc=4786)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- Millions of computer users in the USA have a disability making it difficult to use the Web. The University of Wisconsin System recently required that all System Web pages meet Priority 1 accessibility guidelines as set by the World Wide Web Consortium's Web Accessibility Initiative (W3C/WAI). Class materials available in online learning management systems should also be accessible to students with disabilities. Four systems, Blackboard 4 and 5, Prometheus 3, and WebCT 3, were assessed against theW3C/WAI guidelines for a numerical statistic of accessibility. Practical accessibility was tested with Lynx, IBM Homepage Reader, and JAWS. Validation was performed with A-Prompt and the W3C/WAI checklist.
