"ED477517 - Survey of Instructional Development Models. Fourth Edition"
Source: ERIC - the Education Resources Information Center
Title: Survey of Instructional Development Models (PDF available)
Authors: Kent L. Gustafson and Robert Maribe Branch
"In closing, it is fair to predict that the future will be both exciting and a little unsettling for 10 professionals. After a relatively lengthy period of slow evolution of ID practice, we are on the threshold of major shifts. As is the case in all such shifts, the key is determining how to incorporate what is valid and useful from past theory and practice into a new framework, while testing and revising the new ideas rather than accepting them without any prior critical analysis." - from source