Representative case · synthetic, non-customer data
New winter evidence changed the choice—not the requirements.
A fictional EV pickup program needed more usable cold-weather range without exceeding its comfort, towing, mass, cost and readiness limits. DAOSoft’s representative case follows the original choice, the evidence that challenged it and the new commitment.
Explore this representative workflow—or bring a non-sensitive decision from your program.
The original decision: Tow Efficiency.
The architecture study compared eight complete packages. Tow Efficiency initially passed the range floor by 0.4 mi and led three of four recorded preference profiles. Energy Capacity remained a fallback.
The change: higher thermal demand in extreme-cold towing.
New synthetic winter evidence increased the estimated cabin and battery thermal demand. Reanalysis used the same accepted requirements and preference profiles; the team did not relax a limit to preserve the earlier selection.
Why the original direction could not stand
Tow Efficiency · conservative battery-only range
Synthetic modeled results · non-customer data.
Reanalysis led to a conditional Energy Capacity commitment. The earlier decision and its evidence remained identifiable.
The new comparison: only Energy Capacity met the acceptance conditions.
Only Energy Capacity met all six quantitative thresholds and the case’s assumed safety and towing qualification conditions.
The range requirement was at least 76.5 miles of battery-only range at the modeled 10th percentile, a conservative result under the case assumptions. Four alternatives illustrate the decisive differences; the technical detail covers all eight.
Energy Capacity
Meets all case conditions; conservative range is 1.3 mi above the floor.
77.8 mi
Tow Efficiency
Misses the range floor by 0.8 mi.
75.7 mi
Balanced Integration
Higher range, but the modeled comfort metric is 19.4 min against an 18.0-min limit.
86.5 mi
Supplemental Energy
Battery-only range misses by 9.5 mi; supplemental reach is a different measure.
67.0 mi
Conservative battery-only range · 10th percentile. Each track spans 60–90 miles; the vertical mark is the 76.5-mile floor. Synthetic modeled results.
Energy Capacity · critical-scenario median
80.5 miModeled median battery-only range
+11.8 mi / +17.1% versus baseline
Extreme-cold, high-speed towing
Synthetic, non-customer data. The median describes the scenario outcome. Acceptance used the separate 77.8-mile conservative result above.
The new commitment: additional battery energy, with conditions.
Energy Capacity combined controls, preconditioning and battery thermal support with 15 kWh of additional usable battery energy. It added 138 kg and displaced 28 litres of usable volume. Its modeled 90th-percentile incremental unit cost was $4,779.
In the extreme-cold, high-speed towing scenario, modeled median battery-only range increased from 68.7 to 80.5 miles: 11.8 miles, or 17.1%. It was the sole acceptable package under the case assumptions, not an optimum for every operating condition.
The program authority recorded the new concept-baseline commitment separately from the Chief Engineer’s recommendation. Further thermal validation remained required; supplier timing or aged-battery performance crossing a constraint would reopen the decision.
A changed decision with an intact history.
The record retains the original selection, changed evidence, reanalysis and new commitment. The earlier decision is superseded, not rewritten. Reviewers can inspect why the direction changed and what still needs validation.
This demonstration uses retained synthetic analyses and case records seeded into DAOSoft. The product excerpt shows the preserved decision history; it is not a fresh end-to-end execution.
Inspect the seeded decision records and original product excerpt
A representative demonstration, not a vehicle-performance claim.
All data, roles and commitments are synthetic and non-customer. Reduced-order models illustrate decision analysis; they are not vehicle-release evidence, certification or independently validated range predictions.
The cabin-comfort metric is a parameterized estimate, not a measured warm-up time or simulated cabin-temperature trajectory. Percentiles depend on the demonstration assumptions.
Technical detail: scenarios, all eight packages and every acceptance gate
The scope of the fictional decision
The program contains a near-term winter-response project and a next-increment architecture project. This account focuses on the architecture choice. The projects share evidence but have separate commitments.
The charter requires improved battery-only capability and records supplemental-energy reach separately. Added fuel therefore cannot satisfy the battery-range floor. This is a fixed scope choice in the synthetic case, not a universal rule for vehicle architecture. A decision allowing supplemental energy to satisfy that requirement would be a different comparison.
All thresholds are assumptions of the fictional program, not industry standards. Departure state of charge is 95%, reserve is 10%, cabin setpoint is 20 °C, and preconditioning is plugged-in and complete.
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| Scenario | Ambient | Trailer mass | Target speed |
|---|---|---|---|
| Temperate reference | 20 °C | 0 lb | 65 mph |
| Cold no tow | -7 °C | 0 lb | 65 mph |
| Extreme cold no tow | -20 °C | 0 lb | 65 mph |
| Cold enclosed tow | -7 °C | 5000 lb | 65 mph |
| Extreme-cold high-speed enclosed tow | -20 °C | 5000 lb | 75 mph |
All eight packages after reanalysis
Conservative range is the lowest modeled 10th-percentile battery-only result across the five scenarios. The median and improvement columns below refer specifically to extreme-cold, high-speed towing.
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| Package | Conservative range | Critical-scenario median | Median change vs baseline | Disposition |
|---|---|---|---|---|
| Current architecture | 66.4 mi | 68.7 mi | 0.0 mi | 10.1 mi below the battery-range floor |
| Software Assurance | 68.2 mi | 70.5 mi | 1.8 mi | 8.3 mi below the battery-range floor |
| Thermal Efficiency | 66.7 mi | 69.0 mi | 0.3 mi | 9.8 mi below the battery-range floor; 0.6 min over the comfort limit |
| Energy Capacity | 77.8 mi | 80.5 mi | 11.8 mi | Meets all case acceptance conditions |
| Tow Efficiency | 75.7 mi | 78.4 mi | 9.7 mi | 0.8 mi below the battery-range floor |
| Balanced Integration | 86.5 mi | 89.6 mi | 20.8 mi | 1.4 min over the comfort limit |
| Supplemental Energy | 67.0 mi | 69.3 mi | 0.6 mi | 9.5 mi below the battery-range floor |
| Defer and Learn | 66.4 mi | 68.7 mi | 0.0 mi | 10.1 mi below the battery-range floor; 8.9 weeks over the readiness limit |
Supplemental Energy has 131.9 mi of modeled median total reach, including supplemental energy. Its battery-only range remains the value in the table; the two energy definitions must not be substituted.
Why the earlier selection changed
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| Result | Earlier study | Reanalysis | Unchanged limit |
|---|---|---|---|
| Tow Efficiency: conservative range | 76.9 mi | 75.7 mi | At least 76.5 mi |
| Balanced Integration: comfort metric | 8.1 min | 19.4 min | At most 18.0 min |
| Feasible set | Energy Capacity, Tow Efficiency, Balanced Integration | Energy Capacity | Same eight acceptance gates |
Tow Efficiency originally led three of the four recorded preference profiles and had the lowest maximum regret among the feasible packages. The mission-assurance profile favored Balanced Integration. The original recommendation retained Energy Capacity as a fallback. The successor run reused the accepted preference profiles; feasibility changed first.
Every gate, for every package
Expand a package to inspect its result and the accepted limit. Pass/fail is determined from full-precision results. The safety and towing passes are synthetic qualification dispositions, not independently performed crash, braking, stability or regulatory tests.
Current architecture — 10.1 mi below the battery-range floor
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| Acceptance measure | Result | Requirement | Disposition |
|---|---|---|---|
| Conservative battery-only range | 66.4 mi | At least 76.5 mi | Fail |
| Cabin-comfort attainment | 13.9 min | At most 18.0 min | Pass |
| Added mass | 0 kg | At most 300 kg | Pass |
| Lost usable volume | 0 L | At most 115 L | Pass |
| Incremental unit cost | $0 | At most $11,000 | Pass |
| Production-readiness time | 0.0 weeks | At most 170.0 weeks | Pass |
| Safety qualification | Synthetic pass | Must pass | Pass |
| Towing qualification | Synthetic pass | Must pass | Pass |
Software Assurance — 8.3 mi below the battery-range floor
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| Acceptance measure | Result | Requirement | Disposition |
|---|---|---|---|
| Conservative battery-only range | 68.2 mi | At least 76.5 mi | Fail |
| Cabin-comfort attainment | 13.3 min | At most 18.0 min | Pass |
| Added mass | 0 kg | At most 300 kg | Pass |
| Lost usable volume | 0 L | At most 115 L | Pass |
| Incremental unit cost | $161 | At most $11,000 | Pass |
| Production-readiness time | 43.7 weeks | At most 170.0 weeks | Pass |
| Safety qualification | Synthetic pass | Must pass | Pass |
| Towing qualification | Synthetic pass | Must pass | Pass |
Thermal Efficiency — 9.8 mi below the battery-range floor; 0.6 min over the comfort limit
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| Acceptance measure | Result | Requirement | Disposition |
|---|---|---|---|
| Conservative battery-only range | 66.7 mi | At least 76.5 mi | Fail |
| Cabin-comfort attainment | 18.6 min | At most 18.0 min | Fail |
| Added mass | 28 kg | At most 300 kg | Pass |
| Lost usable volume | 18 L | At most 115 L | Pass |
| Incremental unit cost | $1,972 | At most $11,000 | Pass |
| Production-readiness time | 87.8 weeks | At most 170.0 weeks | Pass |
| Safety qualification | Synthetic pass | Must pass | Pass |
| Towing qualification | Synthetic pass | Must pass | Pass |
Energy Capacity — Meets all case acceptance conditions
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| Acceptance measure | Result | Requirement | Disposition |
|---|---|---|---|
| Conservative battery-only range | 77.8 mi | At least 76.5 mi | Pass |
| Cabin-comfort attainment | 13.0 min | At most 18.0 min | Pass |
| Added mass | 138 kg | At most 300 kg | Pass |
| Lost usable volume | 28 L | At most 115 L | Pass |
| Incremental unit cost | $4,779 | At most $11,000 | Pass |
| Production-readiness time | 105.7 weeks | At most 170.0 weeks | Pass |
| Safety qualification | Synthetic pass | Must pass | Pass |
| Towing qualification | Synthetic pass | Must pass | Pass |
Tow Efficiency — 0.8 mi below the battery-range floor
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| Acceptance measure | Result | Requirement | Disposition |
|---|---|---|---|
| Conservative battery-only range | 75.7 mi | At least 76.5 mi | Fail |
| Cabin-comfort attainment | 13.3 min | At most 18.0 min | Pass |
| Added mass | -112 kg | At most 300 kg | Pass |
| Lost usable volume | 4 L | At most 115 L | Pass |
| Incremental unit cost | $3,249 | At most $11,000 | Pass |
| Production-readiness time | 112.5 weeks | At most 170.0 weeks | Pass |
| Safety qualification | Synthetic pass | Must pass | Pass |
| Towing qualification | Synthetic pass | Must pass | Pass |
Balanced Integration — 1.4 min over the comfort limit
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| Acceptance measure | Result | Requirement | Disposition |
|---|---|---|---|
| Conservative battery-only range | 86.5 mi | At least 76.5 mi | Pass |
| Cabin-comfort attainment | 19.4 min | At most 18.0 min | Fail |
| Added mass | 205 kg | At most 300 kg | Pass |
| Lost usable volume | 42 L | At most 115 L | Pass |
| Incremental unit cost | $7,083 | At most $11,000 | Pass |
| Production-readiness time | 120.7 weeks | At most 170.0 weeks | Pass |
| Safety qualification | Synthetic pass | Must pass | Pass |
| Towing qualification | Synthetic pass | Must pass | Pass |
Supplemental Energy — 9.5 mi below the battery-range floor
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| Acceptance measure | Result | Requirement | Disposition |
|---|---|---|---|
| Conservative battery-only range | 67.0 mi | At least 76.5 mi | Fail |
| Cabin-comfort attainment | 13.3 min | At most 18.0 min | Pass |
| Added mass | 284 kg | At most 300 kg | Pass |
| Lost usable volume | 108 L | At most 115 L | Pass |
| Incremental unit cost | $10,087 | At most $11,000 | Pass |
| Production-readiness time | 145.4 weeks | At most 170.0 weeks | Pass |
| Safety qualification | Synthetic pass | Must pass | Pass |
| Towing qualification | Synthetic pass | Must pass | Pass |
Defer and Learn — 10.1 mi below the battery-range floor; 8.9 weeks over the readiness limit
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| Acceptance measure | Result | Requirement | Disposition |
|---|---|---|---|
| Conservative battery-only range | 66.4 mi | At least 76.5 mi | Fail |
| Cabin-comfort attainment | 13.9 min | At most 18.0 min | Pass |
| Added mass | 0 kg | At most 300 kg | Pass |
| Lost usable volume | 0 L | At most 115 L | Pass |
| Incremental unit cost | $0 | At most $11,000 | Pass |
| Production-readiness time | 178.9 weeks | At most 170.0 weeks | Fail |
| Safety qualification | Synthetic pass | Must pass | Pass |
| Towing qualification | Synthetic pass | Must pass | Pass |
Definitions and limitations
Range uses the 10th percentile. Comfort attainment, recurring unit cost and readiness use the 90th percentile. Mass and lost volume are package changes relative to the baseline; negative mass means a reduction. Costs are synthetic USD per vehicle, not customer pricing.
The comfort result is a parameterized demonstration metric. Although the fictional requirement refers to a cabin target, this model does not simulate a cabin-temperature trajectory or establish a measured warm-up time. Higher-fidelity thermal validation remains a condition of the selected commitment.
Displayed values and changes are rounded independently. Percentage changes use the unrounded model results.
These retained synthetic results represent distinct original and successor analyses. They are not customer outcomes, vehicle-release evidence or certification evidence.
See how the work connects inside DAOSoft.
Explore this representative workflow—or bring a non-sensitive decision from your program.