Universal design for learning is a concept that is quite popular within the disability field right now because it emphasizes usability for all. Many feel that this leads to universal accessibility for students with disabilities. CAST is one of the leader's in the field, helping educators to apply the principles to their teaching.
Universal design is a concept that you may want to consider when building your online courses. It will not eliminate the need for some students with disabilities to use accommodations but it does offer greater usability by all learners.
The Center for Universal Design in North Carolina have done some of the seminal work in the field of architecture. They have developed seven principles of universal design, as well as included some guidelines for their use in the design of universally usable spaces. These principles can be adapted and applied to learning environments to meet the same goal of opening more spaces up to the most users.
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