限位（Positioning)，相較於固接方式（Fixing)的接頭設計，是一種非精確性、且相對寬 鬆的接合型態（Connection Program)，有反常民對於建構的普遍認知一建構行為理所當然需要 堅固耐用。 本研究藉由「定位」的工程概念一「規範位置」，以及「變位」的機能取向提出探討，以此 形塑「限位」的概念，其研究目的在於發展能夠容許誤差、具修改性、替換性，且不同於既有固 接方式的開放性構造，並使限位在純粹的工程意義外，能有更多的附加表現，以達到設計的加值 效果。本研究將限位特性中「牽制性」的強弱趨向作為探討主軸，來釐清工程意義的「定位」與 機能意義「變位」在比重上的取向區別，並以此為架構，探討限位的形式與作用，同時做為案例 研究的取樣依據。在研究結果上，同時能夠達到機能「變位」與工程「定位」的案例，多在「牽 制性」與「動態性」上能有兩好的平衡，而没有極端的趨向；但極端趨向的案例中，如承重特性 較強者，其受限位的「牽制性」較高，「動態性」在設計表現的自由度就受到限制，而未能有兩 相加乘的設計效果。然而，即使是固定或承重型態的接合，仍可透過材料作用或形式作用來表達 其中的「限位」特性，而使制式化的固定與承重有著不同的形式内涵。

Compare the positioning action with fixing action of connection program, positioning action is imprecision but leniency program. It is generally recognized that a stmcture is needed to be enough stiffness, strength and stability that caused people who are having a sti*ong bias in the mindset of fixing connection program. This research employing “constraint forces” and “constrained motion” into a specific “positioning action” for connection program, the “positioning action’’ involves a bit of extra tolerance range, modify and replacement for assembling. This paper focuses on the values of “constraint effect” and “motional effect” as the aspects of “positioning action” that the tendency of the effects is referred to as discrimination between “technical meaning” and “functional meaning”，the study result provide an extend range and compatibility in “positioning action” beyond mere “technical meaning” or “functional meaning>,; the co-existence and compatibility thinking will bring the new performances with materiality or modality effect. Furthermore, for “fixing” and “bearing” of connection program, the “positioning” mindset could bring the new form connotation, and the influence is obvious that the relatively older style of conventionalism could obtain various ideas in positioning action.