What is the proper examination of an officer who represents a corporation?

In Canadian Doughnut Company Limited of Toronto v. Canada Egg Produots Limited of Saskatoon (1952), 1952 CanLII 188 (SK QB), 5 W.W.R. (N.S.) 428 at p. 430 Thomson, J., said: Ordinarily the proper person to be examined is the officer who is best able to give information respecting the matters at issue in the action and who, at the same time, occupies a position of such responsibility and importance as would, under the circumstances of the case, qualify him to speak on behalf of the corporation he represents. Whether essential or not, it is, at least, desirable that the officer to be examined should be one who has had some connection with the transaction or occurrence out of which the action arose or has some knowledge of the facts or matters at issue in the action.