The SODA methodology deals with MAS analysis and design, and focuses on critical issues such as agent coordination and MAS-environment interaction. After its first formulation, in order to further meet the needs of complex MAS engineering, SODA was extended to embody both the layering principle and the Agents & Artifacts (A&A) meta-model. As a result, both the SODA meta- model and the SODA process were re-defined, also to include two new phases— Requirement Analysis and Architectural Design. This chapter is then devoted to the documentation of the complete SODA process according to the FIPA standard.