The legal documents pursuant to which most professional engineering and architectural services are rendered. A contract is the statement of promises agreed to by two or more parties in order to effectuate a specific goal. For the law to enforce these promises, certain elements must be present: mutuality of obligation, that is, each of the parties must have an obligation to the others; a meeting of the minds, that is, it must appear that the parties agree; and all material elements of the proposed transaction must be provided for.