The chair then writes a document as a result, which summarizes their discussion. Such documents should avoid, unless agreed to by the member, explicit statements of future outcomes. For example, statements about the number of papers accepted or the number of grants that an individual will receive are too predictive of an unknowable future. General statements about research activity, for example plans to continue to be research active in the coming year or the faculty member will work on a book, etc should be sufficient. Presumably, the Chairs know their faculty and certainly have access to information that will form the basis of their discussion.
Some Chairs seem to be requiring faculty to sign documents.
This is not required by the contract and it is perfectly all right for you not to sign. If you feel compelled to sign, you are not giving up your rights. When the process is complete for all faculty members then before transmittal to the Dean, the documents must be made available for everyone to read. The contract then contains a procedure to carry out when the faculty member is dissatisfied with their workload. This entails meeting with the chair first, and then with the Dean.