Operations Strategy is the tool that helps to define the methods of producing goods or a service offered to the customer - www.wikibooks.com
Operations strategy is the total pattern of decisions which shape the long-term capabilities of any type of operations and their contribution to the overall strategy.- Slack and Lewis, Operations Strategy.
Difference between Operations Strategy and Operational Strategy
Operational Strategy is the plan of action implemented by a firm that describes how they will employ their resources in the production of a product or service. An operational strategy is a necessary element for a business and supports the firm's corporate strategy. - www.businessdictionary.com