TOGAF's first version was developed during mid-1990s and continuously maintained by it based on experience and exposure from the United States Department of Defense, namely Technical Architecture Framework for Information Management (TAFIM). Later, the forum started releasing successive versions based on the fundamental blocks. Consider the following image:
The preceding image is a view of the timeline for the growth of TOGAF until the latest version, 9.1. This illustrates the long maturation cycle.
TOGAF 9 Technical Corrigendum 1 can be obtained from www.opengroup.org/bookstore/catalog/u112.htm.
As TOGAF has become more mature, the time period between publications has also increased.