Every mission engineering tool purchase eventually faces the same question from procurement or program management: "What is the ROI?" The honest answer is that ROI for engineering tools is harder to compute than ROI for, say, manufacturing equipment, because the savings are in engineer time and avoided rework rather than direct revenue. But it is far from impossible. Here is a framework that produces defensible numbers.
Start with the labor cost baseline. The fully-loaded cost of a senior space systems engineer (salary, benefits, overhead, infrastructure) is typically $150-220 per hour at most US aerospace primes, $100-140 at smaller contractors and startups, and $200-300 at FFRDCs and federal labs. Pick a number that fits your organization and use it consistently. For the rest of this analysis we will use $150/hour as a midpoint.
Now identify the activities the tool will accelerate. The five biggest time sinks on most space programs are: phase gate review package assembly, requirements traceability maintenance, budget reconciliation, risk register updates, and engineering calculations from scratch. Estimate hours per cycle for each activity and how many cycles per year.
Phase gate review packages typically consume 80-160 hours of engineering time per major review (PDR, CDR, TRR). Most programs run 3-6 major reviews per year if you count subsystem-level gates. Assume 4 reviews per year at 120 hours per review average. That is 480 hours per year just on review package assembly. At $150/hour, that is $72,000 per year per program.
Requirements traceability maintenance in spreadsheets typically consumes 4-8 hours per week across the engineering team for a mid-sized program. Call it 6 hours per week, 50 weeks per year, $150/hour — that is $45,000 per year. Tools that automate suspect link detection and coverage analysis cut this by 70-80%, saving roughly $32,000 per year per program.
Budget reconciliation (ensuring the mass budget in one spreadsheet matches the mass budget in another, validating that the power numbers in the review package match the engineering analysis) consumes 2-4 hours per week. At 3 hours per week, $150/hour, 50 weeks, that is $22,500 per year. A connected budget tool eliminates 80% of this work, saving $18,000 per year per program.
Risk register maintenance is usually 2-4 hours per week of one engineer's time. Call it 3 hours per week. That is $22,500 per year. A connected risk module reduces this by 50-60%, saving roughly $12,000 per year.
Engineering calculations from scratch (link budgets, orbital trades, sizing analyses) often take 4-8 hours each because the engineer has to set up the math, validate against a textbook example, and document the assumptions. A pre-built calculator with reference values cuts this to 30-60 minutes. If your team runs 20-30 such calculations per program per year, the savings are 100-200 hours, or $15,000-$30,000 per year.
Adding it up: phase gate ($72k) + traceability ($32k) + budget reconciliation ($18k) + risk maintenance ($12k) + calculations ($22k average) = roughly $156,000 per year per program in labor savings for a mid-sized space program. This is the gross savings from a connected mission engineering platform. The net savings are this number minus the tool cost.
Tool cost for a 10-engineer team using a $50-60/user/month SaaS mission engineering platform is roughly $7,200/year. Net savings: $156,000 - $7,200 = $148,800 per year per program. Payback period: about 3 weeks. ROI: ~2,000% in the first year. These numbers are realistic for a typical mid-sized space program — they are not marketing fantasy.
Two other categories of value are harder to quantify but worth mentioning. First, schedule risk reduction: programs that ship phase gate packages on time avoid the cascading delays of slipping a review by a week. The cost of slipping CDR by one week on a typical $50M program is roughly the burn rate times one week — call it $250,000-$500,000. Avoiding even one slip per program lifecycle is more valuable than every other line item combined. Second, error reduction: when budgets and traceability are maintained automatically, the rate of "wrong number in the deliverable" issues drops to nearly zero. Each such error caught by a customer during review costs approximately 40-80 hours of explanation, rework, and re-submittal. Avoiding 5-10 of these per program is worth $30,000-$60,000.
How to present the ROI to procurement: lead with the labor savings number, support it with the schedule risk reduction, and use the error reduction as a tiebreaker. The frame should be "engineer hours we get back," not "money we spend on tools." Engineering teams have a better intuition for hours than for tool cost.
Common objections and counters. Objection: "We already have DOORS / Excel / PowerPoint, why spend more?" Counter: the cost of those tools (and especially the cost of the labor to maintain them) is the baseline you are comparing against. The question is not whether to spend money — you are spending it now, on labor. The question is whether you can shift the spend from labor to tools at a 20:1 ratio. Objection: "Our team will resist a new tool." Counter: most teams resist tools that add work. Tools that remove work (auto-traceability, auto-review-packages) are typically adopted within a few weeks. Objection: "What about the data migration cost?" Counter: most modern tools accept CSV / ReqIF imports. A typical migration takes 1-4 weeks of one engineer's time, or roughly $6,000-$24,000. This is included in the first-year savings calculation.
SMAD Portal includes an interactive ROI calculator that lets you plug in your team size, hourly rate, and program count to compute annual savings. The default values match the assumptions in this article. Walk procurement through the calculator with your real numbers and the conversation usually finishes itself.