Fundamentals of Maintenance

"... maintenance is a science since its execution

relies, sooner or later, on most or all of the

sciences. It is an art because seemingly identical

problems regularly demand and receive varying

approaches and actions and because some

managers, foremen, and mechanics display

greater aptitude for it than others show or even

attain. it is above all philosophy because it is

a discipline that can be applied intensively,

modestly or not at all, depending upon a wide

range of variables that frequently transcend

more immediate and obviuos solutions."

LINDLEY R. HIGGINS
Maintenance Engineering Handbook
McGraw-Hill, NY, 1990