Scale and Proportion

In Architecture when we talk about scale and proportion, we are talking how the individual parts of the composition or project relate to each other,to the size of human body and its contextual scale.
In my opinion Scale allows us to understand the relationship between a drawing,project or composition and reality.
As we learned Scale refers to how we judge the size of something compared to a reference standard or to the size of something else.We may speak of the scale of a piece relative to a person or by looking something.By other words Scale can be categorized in human scale and visual scale.I agree with Steen about visual scale that can relate in how small or large something appears to be in relation to its normal size and also human scale,where the human body is a reference point used for measurement.
I think Proportion  is find as relative size of parts of the whole.The proportions of an object are the dimensions od width,length ,height and relationship between them.A number of theories of 'desirable' proportions have been developed in the course of history as follows:
-Golden Section- use of this section in a composition brings in a natural balance and visual harmony
-Regulatoring Lines- or Guide Lines help us to regulate our design
-Classical Orders- this are used by disgners of the classical period
-Rehaissance Theories- places emphasis on symmetry,proportion,geometry and the regularity of parts
-Modular- is an anthropometric scale of proportions devised by Le Corbusier
-Anthropometry- human body gives us clues how some spaces should be design