Assessing the maintenance in a process using a semi-parametric approach

In developing any successful maintenance strategy it is important to be abl e to estimate the rate of occurrence of maintenance events. In a previous p aper the authors have argued that there are advantages to using a nonparame tric or semi-parametric approach to such analysis. In this paper the author s explore the use of the approach to data from the water industry using a c ase study. The approach provides insight into the context revealing the imp act of maintenance on the process. The effect of the maintenance strategy c an be evaluated. The paper explores the practical issues of missing values and implementation of an appropriate maintenance strategy. Copyright Q 2001 John Wiley & Sons, Ltd.