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The ability to name inorganic chemicals, given their chemical formulas, is essential not only to chemists and students of chemistry but also to computers if they are going to assume the role of intelligent assistants in the chemical laboratory. To study the problems in this formula-to-name conversion, we have developed a model in the form of a PC-based expert system that maps formulas into chemical names. The model strives to precisely define and circumscribe the domain of commonly encountered inorganic chemicals and to handle both systematic and common names. This rule-based approach also provides a trace of its actions in arriving at a name to permit the expert to be used in computer-aided instruction.

We developed a computer subsystem that permits users to implement multirule, multistage quality control procedures. The subsystem runs as a task in the RelationaLABCOM information system and permits the collection of data from on-line instruments, as well as through manual (keyboard) entry. The choices of control rules and their combinations are at the discretion of each laboratory section, with the system automatically administering the chosen protocols for all the technologists working with the computer. Retrospective data analysis and statistics are available for review by laboratory personnel. The subsystem provides a significant improvement in the availability of real-time quality control at the bench.

125. One on one help for students via computer tutorials: benefits and drawbacks.