1. The document outlines the steps to install Oracle SOA 12c including installing the prerequisite software, Oracle Fusion Middleware infrastructure, SOA suite, Repository Creation Utility (RCU), and creating a new SOA domain.
2. Key steps include unzipping installation files, running Oracle Universal Installer, configuring the SOA domain, and validating the domain creation by starting the required processes and logging into the WebLogic portal.
3. Successful completion is indicated by the domain creation summary, WebLogic and Node Manager servers starting up successfully, and being able to login to the administration console using the provided URLs.