What Truly Determines the Cost of Custom Software > 공지사항

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The biggest cost driver is not the technology stack — it remains unclear scope. Each unanswered question in the brief becomes a buffer inside the number you receive. A team that does not know what happens on the unhappy path must assume a pessimistic case. Investing a few days in a proper discovery frequently cuts the total far more than any rate negotiation.

Integrations remain another reliable source of cost. A feature that touches only your own data is low risk; the same feature talking to a legacy ERP is not. The unknown lives in the other system: rate limits and sandbox access, waiting on someone else's team, inconsistent data. Ask each bidder to price integrations separately, since this is where estimates break.

Non-functional requirements can easily double the budget. An application used by twenty people costs far less than the same idea handling thousands of external customers. Audit and compliance requirements, availability guarantees, scalability, audit logging backend and frontend technologies we use accessibility each add real engineering time. Put them in the brief or you can expect the estimate to move later.

The mix of people behind the number changes the arithmetic. A angular developer hourly rate card reveals almost nothing on its own: a senior engineer at a higher rate can be less expensive in the end than two inexperienced developers who require constant review. Ask as well who else is billed: project management, QA, DevOps and analysis are real work, but they must be named rather than hidden inside a blended rate.

The build price is not the full cost of ownership. Plan for hosting, paid APIs, logging and alerting and a maintenance allowance for every year the software runs. A common working assumption holds that a live system requires a noticeable fraction of its original build cost annually simply to stay current. Ignoring this is the classic mistake.