The guide also introduces versus Worst Negative Slack (WNS) . While WNS tells you the magnitude of your biggest failure, TNS gives you a bird's-eye view of the overall "health" of the design's timing. 6. Verification with Report_timing

In early synthesis stages, clocks are treated as "ideal," meaning they arrive at every register simultaneously with zero edge distortion. To make synthesis realistic, engineers must model physical clock constraints: