How to do the settlement of weak current security engineering (intelligent system in residential area)? What is the process? What documents and materials are needed?

Prepare bidding documents, bidding documents, answering documents, construction contracts, handover lists, change contact lists and as-built drawings for future reference, sort out the construction contracts and contact lists and bind them into a book, that is, the completion settlement data, and report the total settlement price to the owner = total construction contract price+total contact list price. You can ask the owner to review the engineering quantity within 28 days, and the owner shall pay the corresponding amount to the contractor within 14 days after both parties confirm the engineering quantity result.