An Executive Framework for Build-Versus-Buy Decisions in Reinsurance
How Leadership Should Actually Weigh Build Versus Buy
Most build-versus-buy decisions in reinsurance technology happen the same informal way: someone gets a vendor quote, someone else estimates an internal build, and the two numbers get compared in a meeting. That process works fine when the numbers are close and the stakes are low. It works poorly for major platform decisions, where an incomplete comparison can lock in years of unplanned cost. Leadership needs something more structured than a gut check between two headline figures.
Why Does This Need a Formal Framework Instead of Case-by-Case Judgment?
Because case-by-case judgment tends to weigh whichever cost is easiest to see, and a formal framework forces the same complete cost categories to be considered every time, regardless of who's making the case.
Left to informal judgment, a compelling vendor pitch or an optimistic internal estimate can carry a decision on the strength of its presentation rather than the completeness of its numbers. A framework removes that variability by requiring the same categories of cost to be filled in every time, whether the option under review looks obviously attractive or not.
What Should the Framework Require Before Any Decision Is Finalized?
It should require a documented total-cost comparison covering license or development cost, integration, training, and multi-year maintenance for both the build and buy options.
SimpleSolve's research on P&C system TCO makes the case for why this matters concretely, noting that purchase price typically represents only about 10 percent of a system's real implementation cost. A framework that only compares purchase price against a development estimate is, by construction, comparing roughly 10 percent of the real picture.
Who Should Be Involved in Applying This Framework?
Technology leadership, finance, and the business function that will use the system should all contribute, since each sees a different piece of the true cost and value.
Technology leadership understands integration complexity. Finance understands the multi-year budget implications and financing structure. The business function, whether underwriting, claims, or operations, understands how the system will actually be used day to day, which affects both training needs and how quickly value is realized. Excluding any one of these perspectives leaves a gap in the analysis.
How Should the Framework Handle Uncertainty in Cost Estimates?
Use a range rather than a single number for uncertain categories like integration and maintenance, and weigh decisions based on the range rather than an artificially precise point estimate.
| Cost Category | Estimation Approach | Why |
|---|---|---|
| License or purchase price | Fixed, vendor-quoted | Known upfront |
| Development estimate | Fixed, internally scoped | Known upfront |
| Integration | Range | Varies with existing system complexity |
| Training | Range | Varies with staff turnover and system change scope |
| Multi-year maintenance | Range | Depends on usage growth and support needs |
A single precise-looking number for integration or maintenance can create false confidence. A range keeps the uncertainty visible and pushes the decision toward the option that performs reasonably well across the range, not just under the most optimistic assumptions.
Does This Framework Slow Decisions Down Too Much?
It adds some upfront time, but that time is small compared to the cost of correcting a decision after implementation has already started.
Building a proper total-cost comparison might add a few weeks to a decision timeline. Correcting a poorly scoped build-versus-buy decision after the fact, once staff and budget are already committed, typically costs far more in both time and money than the upfront analysis would have.
How Does This Framework Change Vendor Negotiations?
It shifts negotiations toward multi-year total cost rather than just the headline license price, which often surfaces terms, like renewal escalators, that wouldn't otherwise be scrutinized early.
A negotiation focused only on year-one price can miss contract terms that significantly raise cost in later years. A framework that requires a multi-year view naturally pulls those terms into the conversation earlier, when they're still negotiable, rather than discovering them at renewal. A Reinsurance Contract Negotiation Assistant AI Agent can help surface exactly these kinds of multi-year cost terms during the negotiation itself.
What Role Should Past Project History Play?
Past project history should anchor cost estimates, since actual integration and maintenance costs from prior projects are a better predictor than a new estimate built from scratch.
A reinsurer that has completed several technology implementations already has real data on how its own integration and maintenance costs tend to run relative to initial estimates. Using that history to calibrate new estimates produces a far more grounded forecast than starting each new decision as if it were the first one the organization has ever made.
A build-versus-buy framework built around total cost won't make every decision easy. It will make every decision honest, which is the difference between a technology roadmap that holds up over several years and one that keeps needing to be explained away.
Frequently Asked Questions
Why does build-versus-buy need a formal executive framework instead of case-by-case judgment?
Because case-by-case judgment tends to weigh whichever cost is easiest to see, and a formal framework forces the same complete cost categories to be considered every time, regardless of who's making the case.
What should the framework require before any decision is finalized?
It should require a documented total-cost comparison covering license or development cost, integration, training, and multi-year maintenance for both the build and buy options.
Who should be involved in applying this framework?
Technology leadership, finance, and the business function that will use the system should all contribute, since each sees a different piece of the true cost and value.
How should the framework handle uncertainty in cost estimates?
Use a range rather than a single number for uncertain categories like integration and maintenance, and weigh decisions based on the range rather than an artificially precise point estimate.
Does this framework slow decisions down too much?
It adds some upfront time, but that time is small compared to the cost of correcting a decision after implementation has already started.
How does this framework change the vendor negotiation process?
It shifts negotiations toward multi-year total cost rather than just the headline license price, which often surfaces terms, like renewal escalators, that wouldn't otherwise be scrutinized early.
What role does past project history play in this framework?
Past project history should anchor cost estimates, since actual integration and maintenance costs from prior projects are a better predictor than a new estimate built from scratch.
How should the framework be revisited over time?
Review it after each major build-versus-buy decision, comparing actual costs to the framework's estimates, and use that gap to refine the framework's assumptions going forward.
