As the tedium drags on in Step 6, people working on the effort seem to develop tunnel vision. However, progress, which might have seemed slow during Step 6, is beginning to speed up noticeably.
Components come together to make subsystems.
Subsystems are debugged and become operational, and a system starts coming together. The staff begins to realize that the plan's major milestones are being accomplished. Also, this is the time when project participants start feeling the pressure of a delivery date. So much has been done, but so much remains to do. Every day seems to bring both progress and frustration, and the pace of the work increases.