Rule groups with preconditions,posteonditions,and termination conditions were added tothe ADVISE Meta-Expert System.Multiple,varying goals are also an attribute of the new rulegroups.By treating the data collection process as separating from the rule inference engine,techniques for enhanced data acquisition were developed using semantic networks to describerelations among variables and to restructure value sets for variables dynamically.Having thusextended the ADVISE tools,an automated key to alfalfa field pest identification was selected as atest application and found to be particularly well suited by the new features.A need fordisjunctive(“OR”)constructs in the right hand side of rules is discussed,and directions forfuture applications are given. Rule groups with preconditions, posteonditions, and termination conditions were added tothe ADVISE Meta-Expert System. Multiple, varying goals are also an attribute of the new rulegroups .By treating the data collection process as separating from the rule inference engine, techniques for enhanced data acquisition were developed using semantic networks to describerelations among variables and to restructure value sets for variables dynamically.Having thusextended the ADVISE tools, an automated key to alfalfa field pest identification was selected as a test application and found to be particularly well suited by the new features. A need fordisjunctive (“OR”) constructs in the right hand side of rules is discussed, and directions for future applications are given.