Abstract
	CORALL expert system package was developed for use by electric utility and power plant personnel during investigation into the cause of thermal power plant corrosion damage.  It is intended to assist their efforts to recognize and identify a basic cause of the damage under investigation.  The program guides the user to the most likely damage mechanism by asking simple questions, answers to which can be obtained by determining the type of power plant, damage location, type of fuel, type of metal and from visual inspection of the damaged component.
	For the first time, decades of accumulated knowledge, expertise and experience of the builders and operators of power generating stations are available in a microcomputer accessible form.  In a matter of seconds, a damage mechanism can be diagnosed with the same confidence as the best corrosion damage analysis specialists.  CORALL is based on the reliable information published in the public domain and accepted by the practising experts in the area of thermal power plant corrosion damage analysis.
	The CORALL expert system package is designed for ease of use and no previous computer experience or computer programming knowledge is required.