These are stories that read like good stories -- and call for a story teller's gift. They describe the business and technology benefits achieved when a customer used a product or service. Case studies are typically written in a problem-solution-results format with a strong focus on what was actually accomplished and why the product or service was superior to alternative solutions. Depending on audience, case studies can be written at various levels of technical depth. However, whether they are considered "technical" or not, all case studies should reflect a true understanding of the technology issues involved and how those impact organizational performance. For more on this topic, please read my blog article on how to write case studies.