COLLECTION AND ANALYSIS OF DATA

Quinn (1995) comments that there are many reasons why maintenance work is needed initial decision establish to some extent, the amount of maintenance work that would be required, such design decision may be based on reliable data,past experience and or opinions,.Too difference in cost may influence selection of commercially available units or component of production equipment. But all those factors will latter mean or less need for maintenance depending on the quality of the original equipment chosen. Also contributing to the needs of maintenance work is deviation from acceptable operation practices, quality of separate components within a larger equipment system and the continuing quality of maintenance workmanship or work performed.. In determining how most of the total  maintenance work being performed is actually necessary,consideration frequently is given daily to obvious problems - and the no of hours being spent on them. Since this work require both clerical and engineering,time as well the require hour of repair,this must be evaluated too and the whole expenditure considered.In doing this a basic requirement is collection and analysis of considerable data.It also necessary to establish that expenditure for engineering time and investment involved in correcting problems and or improving condition are justified,that individually they are sound business  preposition (Lewis,2001).For maintenance work and production information requires a considerable amount of basic information or data for analysis and preventive planning,including:
-Sufficient maintenance - cost information
- Adequate equipment repair history
-Knowledge of production capability and requirements.
   In addition, it is necessary to analyse tasks,which usually require staff engineering time consult assistance,or a combination of both,because of the cost involved in engineering work It is specifically important to establish return on investment for engineering time.,