Due to globalisation, today's business environment obtains celerity and transparency of the global capital and product markets. Resultant from those changes of the world market, companies have to face an increase in the standards to remain competitive. Firms must ensue to that general trend of reducing costs, carrying a high yield and decreasing life-cycle time of their products. That change in business leads to certain requirements successful companies have to cope with. Externally, a corporation has to concentrate on the whole environment and especially on the customers. Internally, a flat,...