(1) In this Division--
"notice to produce" means a notice to produce referred to in rule 21.10.
"party A" means a party to whom another party is producing, or being asked to produce, documents or things for inspection.
"party B" means a party who is producing, or being asked to produce, documents or things for inspection.
(2) For the purposes of this Division, a document or thing is to be taken to be
"relevant to a fact in issue" if it could, or contains material that could, rationally affect the assessment of the probability of the existence of that fact (otherwise than by relating solely to the credibility of a witness), regardless of whether the document or thing would be admissible in evidence.