Studies that surveyed manufacturers about the impact of ERP systems on firm performance indicate that company size and industry do not affect the results. Benefits have been indicated for large and small firms, whether they make standard or custom products or are in discrete or process manufacturing environments. This section explains the quantifiable benefits in terms of several areas of improvement.
Typical Benefits
The most significant quantifiable benefits involve reductions in inventory, material costs, and labor and overhead costs, as well as improvements in customer service and sales.
Inventory reduction. Improved planning and scheduling practices typically lead to inventory reductions of 20 percent or better. This provides not only a one time reduction in assets (and inventory typically constitutes a large proportion of assets), but also provides ongoing savings of the inventory carrying costs. The cost of carrying inventory includes not only interest but also the costs of warehousing, handling, obsolescence, insurance, taxes, damage, and shrinkage. With interest rates of 10 percent, the carrying costs can be 25 percent to 30 percent.
ERP systems lead to lower inventories because manufacturers can make and buy only what is needed. Demands rather than demand insensitive order points drive time phased plans. Deliveries can be coordinated to actual need dates; orders for unneeded material can be postponed or canceled. The bills of material ensure matched sets are obtained rather than too much of one component and not enough of another. Planned changes in the bills also prevent inventory build up of obsolete materials. With fewer part shortages and realistic schedules, manufacturing orders can be processed to completion faster and work-in-process inventories can be reduced. Implementation of JIT philosophies can further reduce manufacturing lead times and the corresponding inventories.
Material cost reductions. Improved procurement practices lead to better vendor negotiations for prices, typically resulting in cost reductions of 5 percent or better. Valid schedules permit purchasing people to focus on vendor negotiations and quality improvement rather than on expediting shortages and getting material at premium prices. ERP systems provide negotiation information, such as projected material requirements by commodity group and vendor performance statistics. Giving suppliers better visibility of future requirements helps them achieve efficiencies that can be passed on as lower material costs.
Labor cost reductions. Improved manufacturing practices lead to fewer shortages and interruptions, and less rework and overtime. Typical labor savings from successful ERP are a 10 percent reduction in direct and indirect labor costs. By minimizing rush jobs and parts shortages, less time is needed for expediting, material handling, extra setups, disruptions, and tracking split lots or jobs that have been set aside. Production supervisors have better visibility of required work and can adjust capacity or loads to meet schedules. Supervisors have more time for managing, directing and training people. Production personnel have more time to develop better methods and improve quality and throughput.
Improved customer service and sales. Improved coordination of sales and production leads to better customer service and increased sales. Improvements in managing customer contacts, in making and meeting delivery promises, and in shorter order to ship lead times, lead to higher customer satisfaction and repeat orders. Sales people can focus on selling instead of verifying or apologizing for late deliveries. In custom product environments, configurations can be quickly identified and priced, often by sales personnel or even the customer rather than technical staff. Taken together, these improvements in customer service can lead to fewer lost sales and actual increases in sales, typically 10 percent or more.
ERP systems also provide the ability to react to changes in demand and diagnose delivery problems. Corrective actions can be taken early, such as determining shipment priorities, notifying customers of changes to promised delivery dates, or altering production schedules to satisfy demand.
Improved accounting controls. Improved collection procedures can reduce the number of days of outstanding receivables, thereby providing additional available cash. Underlying these improvements are fast accurate invoice creation directly from shipment transactions, timely customer statements, and follow through on delinquent accounts. Credit checking during order entry and improved handling of customer inquiries further reduces the number of problem accounts. Improved credit management and receivables practices typically reduce the days of outstanding receivables by 18 percent or better.
Trade credit can also be maximized by taking advantage of supplier discounts and cash planning, and paying only those invoices with matching receipts. This can lead to lower requirements for cash-on-hand.
Typical Benefits
The most significant quantifiable benefits involve reductions in inventory, material costs, and labor and overhead costs, as well as improvements in customer service and sales.
Inventory reduction. Improved planning and scheduling practices typically lead to inventory reductions of 20 percent or better. This provides not only a one time reduction in assets (and inventory typically constitutes a large proportion of assets), but also provides ongoing savings of the inventory carrying costs. The cost of carrying inventory includes not only interest but also the costs of warehousing, handling, obsolescence, insurance, taxes, damage, and shrinkage. With interest rates of 10 percent, the carrying costs can be 25 percent to 30 percent.
ERP systems lead to lower inventories because manufacturers can make and buy only what is needed. Demands rather than demand insensitive order points drive time phased plans. Deliveries can be coordinated to actual need dates; orders for unneeded material can be postponed or canceled. The bills of material ensure matched sets are obtained rather than too much of one component and not enough of another. Planned changes in the bills also prevent inventory build up of obsolete materials. With fewer part shortages and realistic schedules, manufacturing orders can be processed to completion faster and work-in-process inventories can be reduced. Implementation of JIT philosophies can further reduce manufacturing lead times and the corresponding inventories.
Material cost reductions. Improved procurement practices lead to better vendor negotiations for prices, typically resulting in cost reductions of 5 percent or better. Valid schedules permit purchasing people to focus on vendor negotiations and quality improvement rather than on expediting shortages and getting material at premium prices. ERP systems provide negotiation information, such as projected material requirements by commodity group and vendor performance statistics. Giving suppliers better visibility of future requirements helps them achieve efficiencies that can be passed on as lower material costs.
Labor cost reductions. Improved manufacturing practices lead to fewer shortages and interruptions, and less rework and overtime. Typical labor savings from successful ERP are a 10 percent reduction in direct and indirect labor costs. By minimizing rush jobs and parts shortages, less time is needed for expediting, material handling, extra setups, disruptions, and tracking split lots or jobs that have been set aside. Production supervisors have better visibility of required work and can adjust capacity or loads to meet schedules. Supervisors have more time for managing, directing and training people. Production personnel have more time to develop better methods and improve quality and throughput.
Improved customer service and sales. Improved coordination of sales and production leads to better customer service and increased sales. Improvements in managing customer contacts, in making and meeting delivery promises, and in shorter order to ship lead times, lead to higher customer satisfaction and repeat orders. Sales people can focus on selling instead of verifying or apologizing for late deliveries. In custom product environments, configurations can be quickly identified and priced, often by sales personnel or even the customer rather than technical staff. Taken together, these improvements in customer service can lead to fewer lost sales and actual increases in sales, typically 10 percent or more.
ERP systems also provide the ability to react to changes in demand and diagnose delivery problems. Corrective actions can be taken early, such as determining shipment priorities, notifying customers of changes to promised delivery dates, or altering production schedules to satisfy demand.
Improved accounting controls. Improved collection procedures can reduce the number of days of outstanding receivables, thereby providing additional available cash. Underlying these improvements are fast accurate invoice creation directly from shipment transactions, timely customer statements, and follow through on delinquent accounts. Credit checking during order entry and improved handling of customer inquiries further reduces the number of problem accounts. Improved credit management and receivables practices typically reduce the days of outstanding receivables by 18 percent or better.
Trade credit can also be maximized by taking advantage of supplier discounts and cash planning, and paying only those invoices with matching receipts. This can lead to lower requirements for cash-on-hand.
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