World Multiconference on Systemics, Cybernetics and Informatics/5Th International Conference on Information Systems, Analysis and Synthesis (Isas 99), Date: JUL 31-AUG 04, 1999, Location: ORLANDO, FL, Sponsors: Int Inst Informat & System, IEEE Comp Soc, Venezuela Chapter, World Org System & Cybernet, Int Federat Syst Res, Int Soc Syst Sci, Int Syst Inst, CUST, Int Inst Av Studies Syst Res & Cybernet, Soc Appl Syst Res, Cybernet & Human Knowing, Cent Univ Venezuela, Simon Bolivar Univ