Universal Design for Learning vs Assistive Technology

Here is a great podcast that clarifies the differences between Universal Design for Learning (UDL) and Assistive Technology:
http://www.connsensebulletin.com/csb003.mp3
To sum it up, Universal Design refers to "a learning environment that is as inviting as possible for a wide range of students." These students may or may not have disabilities, but different learning styles and abilities are taken into consideration. In a classroom that embraces UDL the instruction provides the following:
1) Multiple means of representing material--the teacher presents the material in a variety of ways so that all students are engaged, regardless of learning style. (visual, auditory, kinesthetic, etc)
2) Multiple means of engagement--material is not too hard or not too easy. Expectations are "just right" for each student so no one is bored and no one is overwhelmed.
3) Multiple means of expression--students can express what they know through various means--written, oral, individual work, team projects, etc.
Assistive technology on the other hand, is directed toward the needs of the individual student to increase, improve, or maintain participation in the learning environment. AT is person centered, UDL is classroom environment centered.
In a classroom that uses UDL concepts, AT may not be needed for an individual student because the environment and learning is already accessible for a wide variety of learning needs. However, a student with a disability may still need assistive technology to more fully and independently participate in the learning environment.