How to calculate the three-year total cost of ownership of a data platform: people, infrastructure, licences, maintenance and hidden costs.
When evaluating a data platform, the most common mistake is to look at the entry price and forget what it costs to run for years. Total cost of ownership corrects that and is the right metric for comparing alternatives.
TCO (Total Cost of Ownership) is the sum of all costs of a solution over its life: acquisition, implementation, operation, maintenance and retirement. In data, that bill has visible and rarely-shown items.
The costs that are not budgeted usually deviate the real TCO: time to first result (opportunity cost), reprocessing from quality errors, and turnover of technical profiles — among the highest in tech.
Versus building in-house, a managed service with consumption pricing converts much of that fixed cost into variable and shifts maintenance to the provider. The right comparison is three-year TCO of each alternative, including people and time.
Do not just compare licence vs. cloud. Compare three-year TCO including people, time and maintenance.
TCO captures the full lifetime cost of a data platform, where people (not cloud) dominate and hidden costs — maintenance, training, turnover — tip the balance. Compare options over three years, and remember a managed service converts a high fixed cost into a predictable, variable one.
At least three years. A shorter horizon overvalues options with low upfront investment but high operating cost.
Operating a data platform requires several specialised, scarce profiles whose recurring cost often exceeds infrastructure.
In most cases yes, by removing the fixed cost of team and infrastructure and shifting maintenance to the provider with pay-per-use.
Time to result (opportunity cost), reprocessing from quality errors, and turnover of technical profiles, which resets part of the work.
The ongoing cost of keeping the platform working as sources change and needs evolve — typically 15–25% of what was built, per year.
Neither comparison is complete on its own. Compare full three-year TCO including people, time and maintenance.
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