superstructure — the part of a building or construction entirely above its foundation or basement.
ziggurat — (among the ancient Babylonians and Assyrians) a temple of Sumerian origin in the form of a pyramidal tower, consisting of a number of stories and having about the outside a broad ascent winding round the structure, presenting the appearance of a series of terraces.
development — Development is the gradual growth or formation of something.
plan — a scheme or method of acting, doing, proceeding, making, etc., developed in advance: battle plans.
planning — a scheme or method of acting, doing, proceeding, making, etc., developed in advance: battle plans.
structure — mode of building, construction, or organization; arrangement of parts, elements, or constituents: a pyramidal structure.
system — an assemblage or combination of things or parts forming a complex or unitary whole: a mountain system; a railroad system.
arrangement — Arrangements are plans and preparations which you make so that something will happen or be possible.
build — If you build something, you make it by joining things together.
cast — The cast of a play or film is all the people who act in it.
composition — When you talk about the composition of something, you are referring to the way in which its various parts are put together and arranged.
conception — A conception of something is an idea that you have of it in your mind.
constitution — The constitution of a country or organization is the system of laws which formally states people's rights and duties.
contour — You can refer to the general shape or outline of an object as its contours.