In the services industry, strategic sourcing refers to a service solution, sometimes called a strategic partnership, which is specifically customized to meet the client's individual needs. In a production environment, it is often considered one component of supply chain management. Modern supply chain management professionals have placed emphasis on defining the distinct differences between strategic sourcing and procurement. Procurement operations support tactical day-to-day transactions such as issuing purchase orders to suppliers, whereas strategic sourcing represents to strategic planning, supplier development, contract negotiation, supply chain infrastructure, and outsourcing models.