adl uses the term “distributed learning” broadly, to refer to all network-centric learning technologies and their corresponding best practices for their use. similarly, adl uses the term “learning” to include education, training, operational performance support, and other forms of ad hoc, just-in-time, or self-directed learning. within these topical areas, adl conducts research and development (budget area 6.3, advanced technology development), facilitates coordination, and assists with the implementation of emerging science and technologies. more precisely, adl's work emphasizes the following six areas: [7]