(1) A claim may be made by or against a person —
(a) carrying on business within the jurisdiction; or
(b) who was carrying on business within the jurisdiction when the right to claim arose —
(i) in that person's own name,
(ii) in that person's own name, followed by the words “trading as X.Y.”,
(iii) “X.Y.” followed by the words “a trading name”, or
(iv) as “X.Y.” followed by the words “a firm”.
(2) If a claim is made by or against a person in his or her business name, the rules about claims by or against partners apply as if that person had been a partner in a firm when the right to claim arose and the business name were the firm's name.