Standardization drives efficiency and one of the many ways ERP improves efficiency is by standardizing business processes. It also increases certainty and reliability by setting standardized expectations. Another reason is that ERP increases efficiency to make the business processes automated as this speeds up the processes. The other reason for spending so much time on business processes is increasing optimization. ERP also increases efficiency by integrating functions tightly across the entire business. Read more at: http://it.toolbox.com/blogs/inside-erp/improving-efficiency-with-erp-70311