Measurable quality characteristics of a software system on software architecture level

The main purpose of most software produces, into present a software system with high quality. Most of the experts believe that to achieve this subject, performing all of the stages of producing the software must be based on qualitative programming and performing prepuces. These points specially in producing the software architecture as one of the most important stages of this process must be considered more carefully. Regarding to different and various definitions for quality, and architecture of software, this essay must at first investigate these two matters and there based on achieved results, determine the Evaluable qualitative characteristics at the architecture level.