Design Concepts for Space Settlements

In order to design space infrastructures of several type, location and dimension, precise design parameters should be prepared to respect the particular requirements of the space environment and the technological limitations at any given time. In this paper we want to list and analyse such design criteria ranging from production, transportation, safety and assembly functions as well as flexibility, modularity and expansion possibilities taking in due consideration economical and state of the art technological requirements. Following such parameters definition we also want to analyse how they can be utilized for infrastructures of various dimensions and scope ranging from early space station construction systems, such as the AstroHab to more complex settlements and finally for ultimate artificial planet assembly all proposed by the author.