The Cost Structure describes all costs incurred to operate a business model This building block describes the most important costs incurred while operating under a particular business model. Creating and de- livering value, maintaining Customer Relationships, and generating revenue all incur costs. Such costs can be calculated relatively easily after defi ning Key Resources, Key Activities, and Key Partnerships. Some business models, though, are more cost-driven than others. So-called “no frills” airlines, for instance, have built business models entirely around low Cost Structures. Cost Structure C$ 9 bmgen_final.indd 40 6/15/10 5:32 PM