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Various studies on customer relationship management are carried out with the arrival of the new economy because intensified competitions among companies highlight the unprecedented importance of the customers. Based on the literature review of previous researches, the authors first put forward the model of customer relationship management, which is based on customer equity, then verify how the key dimensions in customer value influence customer equity and also discuss the role of relationship quality- mediating. The authors finally come to the conclusion that customer value has significant influence on customer satisfaction; and relationship quality also exerts significant influence on customer equity.

The new technique of Quantitative Ferrography is described in this paper. It consists of:- 1. Defining Al and As as linear regression; 2. Intercept correcting; 3. Analysing the density reading curves of all the positions on the Ferrogram by micro-computer; 4. Introducing a new parameter J as wear severity index; The experimental results from both the laboratory and the field show that this method is more effective for the plant’s maintenance engineers than the old methods in machine condition trend analysis and fault diagnosis.

The failure of a machinery lubricant system can be monitored and diagnosed more effectively with Analytic Ferrography Quantitiative Technology. However the development of this technology is limited by some disadvantages of its measurement system [for instance, it is time-consuming etc]. For this reason we need to use a micro-computer which will make it possible for the Ferrography Quantitative Testing to be done at high speed and yet be accurate. In this paper micro-computer based quantitative ferrography [TJD] is introduced.