This document provides an overview of radio frequency identification (RFID) technology. It describes the basic components of an RFID system including RFID tags, readers, and backend software. It explains the different types of RFID tags and how they derive power and communicate. Examples of current applications are given across various industries like access control, asset tracking, supply chain management. The document also includes a survey of industries respondents felt RFID could be applied to and discusses some pros and cons of the technology.