The first delay effects were achieved using tape loops improvised on reel-to-reel magnetic recording systems. By shortening or lengthening the loop of tape and adjusting the read and write heads, the nature of the delayed echo could be controlled.
Definition of VM. In Lawrence Associates' Virtual Manufacturing User Workshop report, Virtual Manufacturing (VM)is defined to be an integrated, synthetic manufacturing environment exercised to enhance all levels of decision and control. Design-Centered VM: provides manufacturing information to the designer during the design phase.
PLM systems help organizations in coping with the increasing complexity and engineering challenges of developing new products for the global competitive markets. Product lifecycle management (PLM) should be distinguished from 'product life-cycle management (marketing)' (PLCM). PLM describes the engineering aspect of a product, from managing descriptions and properties of a product through its development and useful life; whereas, PLCM refers to the commercial management of life of a product in the business market with respect to costs and sales measures.