Enterprise architectures, the IT frameworks that govern the alignment between business and technology architectures, come in a range of styles. For example, the pioneering \"Zachman framework\" emphasizes the classification and proper assignment of artifacts. TOGAF, a widely used architecture developed by the Open Group, lays out a process for moving from generic values to industry-specific and then organization-specific structures through a repeatable cycle of steps. Enterprise architectures vary widely on the basis of differing views of the relationship between the business and its IT resources, differing problems the organization must solve, and differing historical and technological factors. The architectural methodology that an organization creates, adopts, or tailors reveals a great deal about that organization's underlying values.