It is not a sign of weakness but of strength to hold certain conclusions tentatively, Techniques of Systems Analysis argues, particularly if one had indicated a program designed to settle them — insofar as they can be settled:
It is important, of course, to take as firm a position as can be justified in a reasonable way and not to overemphasize the uncertainties. (One of the most common excuses for doing nothing is to say that nothing can be done until more information has been obtained. Sometimes the excuse-maker adds insult to injury by acting as a roadblock to getting more information.) But if a question is really open, then one should say so. While there is always an obligation to set up a program which will answer open questions or indicate that they are unanwerable, there is no obligation for the Systems Analyst to have a policy position in advance of the investigation. After all, he is not an executive.
In addition, most studies have a continuing existence and it is often wise to consider their interaction with the past and the future and to leave room for future development. Some of the recommendations that are made may well be made for the sake of future studies.