the perspective of that row : For the same reason as for not adding rows and columns, changing the names may change the fundamental logical structure of the Framework. Rule 7 The logic is recursive : The logic is relational between two instances of the same entity. The framework is generic in that it can be used to classify the descriptive representations of any physical object as well as conceptual objects such as enterprises. It is also recursive in that it can be used to analyze the architectural composition of itself. Although the framework will carry the relation from one column to the other, it is still a fundamentally structural representation of the enterprise and not a flow representation. Flexibility in level of detail One of the strengths of the Zachman Framework is that it explicitly shows a comprehensive set of views that can be addressed by enterprise architecture. Some feel that following this model completely can lead to too much emphasis on documentation, as artifacts would be needed for every one of the thirty cells in the framework. Zachman, however, indicates that only the facts needed to solve the problem under analysis need be populated. John Zachman clearly states in his documentation, presentations, and seminars that, as framework, there is flexibility in what depth and breadth of detail is required for each cell of the matrix based upon the importance to a given organization. An automaker whose business goals may necessitate an inventory and process-driven focus, could find it beneficial to focus their documentation efforts on What and How columns. By contrast, a travel agent company, whose business is more concerned with people and event-timing, could find it beneficial to focus their documentation efforts on Who, When, and Where columns. However, there is no escaping the Why column's importance as it provides the business drivers for all the other columns. Applications and influences Since the 1990s the Zachman Framework has been widely used as a means of providing structure for information technology engineering-style enterprise modeling. The Zachman Framework can be applied both in commercial companies and in government agencies. Within a government organization the framework can be applied to an entire agency at an abstract level, or it can be applied to various departments, offices, programs, subunits and even to basic operational entities. Customization Zachman Framework is applied in customized frameworks such as the TEAF, built around the similar