Which term is described as the TOC approach for analyzing general parts flow, using the four logical structures V, A, T, and I?

• A. VATI Analysis
• B. Zone picking
• C. Yokoten
• D. Zone

Answer: (A)

In TOC, understanding how parts move through a plant is advanced by VATI analysis, which uses four lenses to examine general parts flow: V, A, T, and I. The V lens looks at how much variety or volume of parts travels through the system and the paths those parts follow. The A lens considers how areas and processes are arranged and how they connect, revealing how movement between steps occurs. The T lens focuses on timing and synchronization—how long steps take, the sequence of operations, and where delays creep in. The I lens covers the information and control side—signals, buffers, and coordination that keep the flow moving smoothly.

Looking at these four perspectives together highlights where non-value-added movement, waiting, or bottlenecks appear, so you can target improvements like layout changes, buffer placement, or better synchronization. Other options refer to different concepts (picking methods, cross-plant sharing of practices, or zone-based layouts) and don’t provide this four-structure TOC flow analysis.