Siza’s mastery in freehand drawing is well known, as is his ability to use the sketch to ideate new spaces. Perhaps what is less known is that for him neither drawing nor modelling, nor any other single design tool, including digital ones, is enough, as his methodology depends on the combination and integration of all of them. To watch a creative mind in action is fascinating, and it is not easy to disclose which is the precise role of each tool at a precise moment, but we know, as Siza says, that all these means are mutually supportive, and that architecture emerges from their interaction. To the observer they seem randomly used although they are not. As a matter of fact, it’s a complex process, where the main objective is the production of a qualified space for living, that is, architecture with a capital A. Models are only a piece of this mysterious puzzle. Indispensable, though.

西扎在徒手画方面的精通是众所周知的，他使用草图来构思新空间的能力也是众所周知的。或许鲜为人知的是，对他来说，无论是绘画还是建模，或者任何其他单一的设计工具，包括数字工具，都不够，因为他的方法论取决于所有这些的组合和整合。观察创造性思维的行动是令人着迷的，并且在精确的时刻揭示每个工具的确切作用并不容易，但我们知道，正如 Siza 所说，所有这些手段都是相互支持的，并且架构应运而生从他们的互动中。对观察者来说，它们似乎是随机使用的，尽管它们不是。事实上，这是一个复杂的过程，其主要目标是生产一个合格的生活空间，也就是一个资本为A的建筑。模型只是这个神秘难题的一部分。不过必不可少。