In 2006 Dick Burk, Cheif Architect at OMB at the time, identified that enterprise architecture has different levels. This important conflict deconflicted endless arguments between arcitects at the tactical (solution) level and the strategic (enterprise) level. With the concept of levels in enterprise architecture practice it is now possible to see that there are three different kinds of activity with different scope possibly performed by three different teams (or more). Without this concept your EA efforts may become tactical and without strategic impact, or strategic but without concrete results.
