A good technical specification gives the client and supplier the same understanding of the result. Start with the problem and a working scenario: who performs the action, what information they use and what they receive as an output. Instead of requiring a “user-friendly customer portal”, describe how the user submits a request, corrects an error and checks its status. In a procurement project, this level of detail helps compare proposals: bidders estimate the same scope of work and see the same initial conditions.
Connect each requirement to a validation method
It is useful to add an acceptance example to every substantial requirement. If the system must find records, specify the search fields, result contents and behavior when no results are found. For a report, define the metrics, sources, period and export format. Tie performance requirements to load, data volume and test conditions. Numbers should be grounded in expected use. A statement without measurement conditions may appear precise but lead to different conclusions during validation.
For integrations, list the external systems, interface owners, available documentation and exchange scenarios. Specify who provides the test environment, data, access and support from the other party. For migration, describe the source datasets, their expected quality and reconciliation rules. If the volume or structure is not yet known, include discovery with a specific deliverable: an agreed model, a transformation sample and a refined list of work. This allows unknown conditions to be accounted for in the plan and estimate.
Describe delivery and operating conditions
Include what will be needed after launch in the deliverables: instructions, configuration parameters, integration descriptions, deployment tools and backup procedures. The project documents should define the terms for transferring source code, usage rights, third-party components and access to environments. Agree on support separately: the contact channel, incident categories, response times and the process for releasing fixes. This list helps assess operating costs alongside the cost of initial development.
Review the legal aspects of procurement separately with the client’s responsible specialists. The applicable regime and requirements for bidders, software products and documents depend on the specific procurement; a technically complete specification does not resolve these questions by itself. To verify information about a software product, use the official Russian software register maintained by the Ministry of Digital Development if that information is required for your procedure. In the technical description, document justified needs and agreed constraints, retaining a clear way to validate them.
Agree on the specification with future users
Before finalizing the document, conduct a working review with representatives of users, IT, operations and the acceptance committee. Take several typical tasks and work through them using the text: is there enough information to develop a solution and then confirm the result? Check that required features, stages and dependencies are consistent across sections. Keep the list of acceptance scenarios with the specification. It will provide a common reference for demonstrations, discussions of changes and the system’s operational handover.