EASE
Hazardous Substance Exposure
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 EASE for Windows is a knowledge-based system for assessing workplace exposure to potentially hazardous new substances.
AIAI and HSE staff worked together using the CommonKADS knowledge engineering methodology to model the task and capture the knowledge involved. Execution of the work was audited against TickIT criteria by Lloyds Register.
Ease guides the user by offering a menu of appropriate choices whenever it needs information. When numerical values must be provided, e.g. vapour pressure, sanity checks are carried out.
The user can always back-track and change the answer to an earlier question and a full explanation of the conclusion is always given as well as an explanation of why a particular question is being asked.
The system has been widely distributed for use by authorities throughout Europe.
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