Modern business houses depend too much on machines because these are labour and time saving devices. The use of machines in office becomes economical when:
(a) The workload of the organisation should be sufficient enough to keep the machines constantly engaged.
(b) The use of machines achieves a considerable saving in time and labour.
(c) The facilities of adequate power should be there otherwise machines become idle.
(d) The operational cost of the machines is not too high.
(e) The quality of work done by the machines must be superior than manual work.
(f) It must result accuracy in operation.
(g) The use of machines should be adaptable and flexible in use.