Metrics and decision gates

Funding gap is the additional cash required to keep closing cash at or above the minimum reserve. Cash low point shows when liquidity is most exposed. These are often more important to a near-term authorization than an attractive long-term return.

Operating break-even is the first sustained period in which operating income covers operating expenses under the model’s rule. It does not mean the startup investment has been recovered. Payback estimates when cumulative project cash recovers the outlay; it ignores value after payback and should not stand alone.

NPV discounts future project cash at the annual discount rate. Positive NPV supports value creation under that rate and those assumptions, but it does not guarantee liquidity. ROI summarizes net return relative to project cost; definitions can differ, so the report must state the model basis. IRR is an annualized rate that sets NPV to zero. It is omitted when the cash pattern has no single meaningful conventional rate and can be misleading for mutually exclusive projects, unusual sign changes, or different scales. Operating margin describes recurring operating performance and excludes some investment and financing effects.

Gate design

Agree on gates before reading the answer: no unexplained funding gap, credible downside liquidity, validated high-impact assumptions, minimum mission or service criteria, acceptable payback or NPV where relevant, named owners, and documented conditions. The calculated signal is a consistent prompt; executive judgment remains responsible for the final recommendation.