 introduct adi annual review over 15 20 year grow field inquiri begun shape thi field refer inform scienc technolog draw fragment fring number scienc technolog disciplin art practic the element degre cohes exist field share deep concern - gener transform commun storag retriev becaus univers process varieti background concern agreement boundari inform scienc technolog parentag essenti natur futur to simpli time clearli defin well-understood field inform scienc technolog there truth clear agreement word impli creativ intellect commod embodi document transport exchang distress ambigu lack agreement preclud construct review topic current interest user design student system servic the purpos adi annual review seri initi volum provid review 