Estimating a software project’s cost solely from the number of screens can be misleading. Two similar screens may involve very different work: one might be a simple form, while another applies many business rules and system connections.

Scope goes beyond visible screens

Scope includes user actions, permissions, data rules and behaviour under different conditions. Designing only a successful outcome is insufficient. Missing information, incorrect permissions or lost connections also need attention.

Creating an order record may appear simple. Adding stock checks, approvals, cancellation, payment information and history changes the work involved. Discussing these details early supports a sounder plan.

System connections and data migration

When connections to existing tools are needed, assess the access they provide. Documented, regular data exchange is different from importing disorganised files exported manually.

Cleaning old data, distinguishing duplicate records and matching fields can be separate tasks. Decide what will be migrated, what will be archived and how correctness will be checked.

Quality and usage conditions

Devices, concurrent users and data sensitivity also influence planning. Discuss them to understand actual requirements, not to accept an expensive solution in advance.

Testing, accessibility, security and launch preparation are necessary work that may not be visible. Ask whether they are included when comparing quotations. Looking only at development can overlook needs that emerge later.

Costs after launch

Servers or hosting, the domain, external services and maintenance can be separate expenses. Usage-based charges may change as user or transaction numbers grow.

Document what maintenance covers. Fixing an error is not the same as developing a new feature. Update responsibilities, support conditions and the assessment of changes can be clarified at the beginning.

How should quotations be compared?

First check whether they cover the same work. Compare deliverables, acceptance conditions, data migration, source-code terms and maintenance. An omitted item can make an apparently lower price grow later.

Uncertainty may remain. But recording assumptions and unknowns makes the cost discussion clearer. A sound budget assessment starts by clarifying scope and responsibilities before trying to predict a specific price.