Goods
The key difference between service firms and manufacturers is the tangibility of their output. The output of a service firm, such as consultancy, training or maintenance, for example, is intangible. Manufacturers produce physical goods that customers can see and touch.
Inventory
Service firms, unlike manufacturers, do not hold inventory; they create a service when a client requires it. Manufacturers produce goods for stock, with inventory levels aligned to forecasts of market demand. Some manufacturers maintain minimum stock levels, relying on the accuracy of demand forecasts and their production capacity to meet demand on a just-in-time basis. Inventory also represents a cost for a manufacturing organization.
Customers
Service firms do not produce a service unless a customer requires it, although they design and develop the scope and content of services in advance of any orders. Service firms generally produce a service tailored to customers' needs, such as 12 hours of consultancy, plus 14 hours of design and 10 hours of installation. Manufacturers can produce goods without a customer order or forecast of customer demand. However, producing goods that do not meet market needs is a poor strategy.
Labor
A service firm recruits people with specific knowledge and skills in the service disciplines that it offers. Service delivery is labor intensive and cannot be easily automated, although knowledge management systems enable a degree of knowledge capture and sharing. Manufacturers can automate many of their production processes to reduce their labor requirements, although some manufacturing organizations are labor intensive, particularly in countries where labor costs are low.
Location
Service firms do not require a physical production site. The people creating and delivering the service can be located anywhere. For example, global firms such as consultants Deloitte use communication networks to