Which kind of agreement this really is
A software agreement can be a license to install a product, a subscription to a hosted service, a contract to build custom code, or a mix of these. The structure matters because ownership, payment, and the end of the relationship work differently in each. Under a subscription you usually receive access rather than a copy, so data return and transition help at termination deserve attention. In development work, the description of deliverables and the acceptance process decide when payment is earned and when the job is considered finished. Order forms and online terms that the vendor can update also deserve a look, because they may override parts of the negotiated document.
Ownership of custom code
Paying a developer does not by itself make you the owner of the code. Work-made-for-hire treatment covers employees acting within their jobs and a narrow set of commissioned works, and software written by an outside contractor often falls outside it, so a written assignment is usually needed. Developers also tend to reuse their own libraries, and the agreement should say who owns those and what license you receive. Open-source components carry their own license terms, and some of them affect how you can distribute the finished product. Ask for a list of third-party and open-source components before launch.
Clauses that carry the risk
Limitations of liability, warranty disclaimers, indemnity for infringement claims, service levels, and data security obligations are where negotiation usually happens. Many vendors start from their own paper and will move on some points but not others, so it helps to know which terms matter most for your use. We review the draft against how the software will actually be used, who your customers are, and what data runs through it. Bring the draft, any order forms or statements of work, and a short description of the business process the software supports. If the software will handle personal data or sit inside a regulated process, those obligations belong in the agreement rather than in a separate policy nobody signed.
