Few articles have been published that specifically deal with how to support strategic analysis and management in small-medium sized enterprises (SMEs). In the last decade, however, literature on strategic management has paid considerable attention to the resource-based theory, which seems to fit well the needs of owners and executives of SMEs. The objective of this article is twofold: (i) to present a resource-based view of an SME''s sustainable competitive advantage; (ii) to propose an approach to strategy analysis based on such a view.