Y. Friedman SEMINAR ON METHODS FOR ARCHITECTS/PLÄNNERS The following text and figures are a condensed version of the seminars given at various universities in the U.S. between 1964-1967, the outlay following the one | gave at the University of Michigan, Harvard University and the Universite de Montreal in the fall of 1967 6 ARCHITECTURE’S GOALS & MEANS. The physical objects that tKe architect/planner is supposed to produce (buildings, town parts, etc.) have In satisfy two sets’of criteria. The first one concerns physical hardware proprieties: the elements assuring these proprieties are not produced by the architect, but by manufacturers, artisans, etc,., the architect doing nothing else than selecting the appropriate products from catalogs. The second set is considered the important part of the architect’s activity. It concerns the assembly of the catalog elements described in the first sef. This second part of activity, materialized by producing plans and by their execution, determines the resulting object, e.g. building, town part, etc, This object has to be used by the "clients", The architect/planner has to satisfy the clients and thus plan the object to the clients’ criteria, even if he never met or never knew his real clients (as is the majority of cases). Without knowing the clients, we can organize the criteria in two distinct sets: the first set (I will call it "objective criteria") has to concern the efficiency of the architect-produced object as clients use it in whatever way. This efficiency has no relation to what taste, culture, religion, opinions, etc. the clients might have. For example, a wall is always an obstacle for passage, and an opening permits passage in any culture, country or society-passage or non-passage being objective criteria. The second set (I will call it "aesthetic criteria") are less determinable criteria, and the values concerning aesthetic criteria might vary with every individual taste culture, religion, opinions, etc,., for every individual client. (An individual client means here not a client individvally known by the architect, but a client who considers himself as an individual). It should be very evident that if the objective criteria are satisfied and the aesthetic ones are not, the object produced by the architect/planner might be efficient in use, even if considered as non-aesthetic by some clients On the other hand, if the objective criteria are not satisfied, the object is not efficient in use, even if the aesthetic _criteria seem perfect for a majority of the clients. Such an object might even cause damage to the clients, and in the best case it can be considered nothing more than a sculpture . It is thus clear that an architect-produced object has to satisfy objective criteria with priority, as aesthetic criteria are discretional. Our task will be to attempt to formulate a method to discover how objective criteria can be satisfied. Obviously enough, this cannot be a "trial and error" process, as it would be utterly uneconomic. So we cannot experiment on the object itself, but only on a reduced model, We have to see how one constructs a thought-model and how one can control its efficiency. Such a method follows a sequence of operations (a form of logical model) we can describe as follows: 1. A reduced set of first statements describing in a very generalized way the organization of system we are looking for (axioms). Construction of a simple and understandable thought- model having a clearly defined analogy with the mechanism (assembly of elements) serving in the manner described by the axioms - n 3 Enumerating in a complete (exhaustive) list all the possible "states" admitted by such a model. 1. Selection by a procedure of quantitative comparison the most efficient "state" (or "states") of the above list. 5 If the model is a very complex one and its functioning is not evident at first glance, a control model must be constructed. ARCH + 1(1968)H?2