A useful explanation of a consistent method for comparing alternative mining plans must connect terminology with evidence. Here, the evidence is organized around same time horizon, same currency and documented assumptions.
Planning connects technical limits with operational decisions. Record capacity, assumptions, owners and review dates so a proposal can be checked again when equipment or conditions change.
Same Time Horizon
Use same time horizon as a testable input, not a general description. Record what produced the value, the interval it covers and any exclusions. Compare the record with same currency only after both use compatible boundaries; otherwise the apparent difference may come from definitions rather than performance.
- Evidence: a dated record for same time horizon.
- Cross-check: compare it with same currency.
- Review trigger: repeat the check after a material change affecting same time horizon.
Same Currency
Treat same currency as one layer of the system. Ask who controls it, how often it changes and which record can verify it. Its connection to documented assumptions should be explained explicitly, because two correlated values do not automatically prove that one caused the other.
- Evidence: a dated record for same currency.
- Cross-check: compare it with documented assumptions.
- Review trigger: repeat the check after a material change affecting same currency.
Documented Assumptions
Evaluate documented assumptions with a small evidence chain: source, timestamp, unit, boundary and calculation. Follow the same chain for same time horizon. This prevents a precise-looking result from combining incompatible observations and makes future updates less dependent on undocumented assumptions.
- Evidence: a dated record for documented assumptions.
- Cross-check: compare it with same time horizon.
- Review trigger: repeat the check after a material change affecting documented assumptions.
A consistent method for comparing alternative mining plans: evaluation sequence
- Write the exact decision involving same time horizon.
- Collect same currency using the same observation period.
- Test how the conclusion changes when documented assumptions moves.
- Save the source values, conversions and date of review.
Reference for Mining Planning
Verify the underlying context with NIST Cybersecurity Framework. For values that change over time, use a current source and record its retrieval date.
