ABSTRACT
Modern society is always in a state of constant technological evolution. New technologies result in new products that serve to enhance economic productivity. For instance, the nineteenth century was dominated
5.1 Introduction ............................................................................................. 89 5.2 Time-based design for maintenance methodology: A brief
encapsulation ........................................................................................... 91 5.3 Design modifications for simplifying maintenance .......................... 94 5.4 Case study: Lubrication of a hand-held drill ...................................... 95 5.5 Conclusion ............................................................................................... 98 References ........................................................................................................ 106
by inventions that improved productivity through the use of mechanical power. The twentieth century achieved the same objective through nuclear power and computing prowess. It is too soon in the twenty-first century to predict with any degree of certainty what new technologies may be developed. What can be said with certainty is that twenty-first century advances will be revolutionary in terms of end results and changes will result from inventions we can only imagine.
