Of course, in actual practice, as one moves back and forth between Intent and Engineering, the group will be updating their models developed in the Identity and Vision stages. Remember that there's no lockstep approach to creativity. In practice a group will bounce all over the model and determining where it is in the creative process is more like taking a sampling of recent positions and finding a statistical average than it is looking for the whole group to click from one step to another. Just a note to observe that each stage of the standard model of the creative process is bisected by one of the stages in the septpartite model. Thus, Identity contains elements of evaluation and analysis.
Vision involves analysis and synthesis.
Intent completes the synthesis and commences a use phase. Insight is a deep, introspective use and analysis stage. Engineering is a testing and experimentation stage involving cycles of analysis and synthesis. Building synthesizes the work of engineering and uses it to create the final, tangible product. The Using stage naturally uses this product and evaluates its efficacy.