For the MIB, a row shall not exist in this table if the job does not (yet) have any documents. A 32-bit index is required, since the ISO DPA has a 2**31-1 maximum-value integer for the document-sequence-number attribute. ISO DPA: Document-sequence-number This attribute specifies the number of this document in relation to the set of documents in this job. The first document in the job is numbered 1. The document-sequence-number is not passed as an input attribute in the print operation. Documents are assumed to be submitted in order (i.e., document number 1 followed by document number 2, etc.). [If the job service requester does not submit a document on the first create-job call, no document row shall be added to this table. The rest of this ISO DPA paragraph does not apply:] A server shall return a value of 0 for this attribute if the first Print operation has not submitted a document (e.g., the first-document element is omitted in the create-job element of the Print operation). If a document is cancelled in a multi-document job, the document-sequence numbers of the other documents shall not change.