A government contract usually begins with a need. The agency needs something to operate, protect, maintain, build, repair, feed, transport, analyze, secure, or support.
Before buying, the government may research the market. It may ask businesses whether they can perform the work. It may issue a Sources Sought notice or Request for Information. These early notices are not usually asking for a full proposal. They are often asking, “Who out there can do this?”
Later, the government may issue a solicitation. A solicitation is the actual request for offers, quotes, or proposals. It tells businesses what is required, how to respond, when responses are due, and how the government will evaluate them.
After responses are submitted, the government evaluates and awards. Then the winner has to perform, invoice correctly, and create past performance that can help future bids.
The lifecycle matters because your action changes depending on the stage.