Major objectives for manufacturing engineering
today are evolving. Market requirements indicate
that emphasis should be given to low-volume and
large-variety, even in high volume production
industry, to face global competition. Flexibility is
also required to use the same facility for the minor
or major model changes that come in effective life
span of the equipment. Basic work-piece may
change in different manners as shown in Fig. 2,
demanding flexibility in its manufacture (Sharma,
2001).