What term describes the transformation of form by altering one or more of its dimensions while retaining its identity?

The correct description for the transformation of form by altering one or more of its dimensions while retaining its identity is indeed dimensional transformation. This term emphasizes the aspect of modifying the size, scale, or proportions of an object, yet ensuring that the fundamental characteristics that define its identity remain intact.

By focusing on dimensions, this term captures the essence of how forms can be adjusted in a way that allows them to evolve or adapt while still being recognizable as the original entity. For example, increasing the height of a building while maintaining its overall design does not change its identity as a building; it merely alters its dimensional attributes.

In contrast, the other terms suggest different types of transformations. Subtractive transformation implies removing material or dimensions, altering the object fundamentally, and potentially changing its identity. Additive transformation refers to the process of adding dimensions or material, which can either create a new form or expand upon the existing one, rather than simply modifying existing dimensions. Transformative identity suggests a broader conceptual change in form or character, which may not necessarily focus on dimensional aspects. Hence, dimensional transformation most accurately captures the idea of modifying certain attributes while preserving the entity's core identity.