Leslie Champeny Christine L. Borgman Gregory H. Leazer Anne J. Gilliland-Swetland Kelli A. Millwood Leonard D'Avolio Jason R. Finley Laura J. Smart Patricia D. Mautone Richard E. Mayer Richard A. Johnson Developing a digital learning environment: an evaluation of design and implementation processes. 37-46 2004 conf/jcdl/2004 JCDL http://doi.acm.org/10.1145/996350.996361 db/conf/jcdl/jcdl2004.html#ChampenyBLGMDFSMMJ04