The document discusses competitive advantage and business systems. It defines the key components of a business system as the resource base, activity system, and product/service offering. It then examines internal analysis using the resource-based view, which defines a firm according to its resources and capabilities. Resources support capabilities, and capabilities exploit resources. The document analyzes how resources, capabilities, and the value chain can provide competitive advantage, and stresses the importance of dynamic capabilities for managing knowledge, learning, innovation, and developing future resources and capabilities.