| ADSL | Asymmetric Digital Subscriber Line | Technology for delivering a high bit-rate link to customers over ordinary copper to provide a broadband service. | 
| API | Application Programming Interface | Method for computer systems to exchange data using defined standards and formats. | 
| API Consumer | API Consumer | An API consumer is defined as an individual from an organisation, for example, a developer or technical resource. | 
| B2B | Business to Business | In the context of this document, B2B services are provided by Chorus to RSP customers giving direct access to ordering systems for Copper and Fibre. | 
| ELK | Elastic Logs Kibana | Reporting dashboard. | 
| ICMS | Integrated Customer Management System | Order, inventory, work order and billing management system. | 
| JSON | Java Script Object Notation | An open-standard file format that uses human-readable text to transmit data objects. | 
| RAML | Restful API Modelling Language | Used to document API design. | 
| OOT | Order and Online Tracking | Chorus system where RSP customers can create orders for Copper products. | 
| RSP | Retail Service Provider | Chorus Customer. | 
| SAM | Service Area Master | The address area within ICMS. | 
| TLC | Telecom Location Code | Unique address identifier used in Fibre systems. Contains nine numeric characters. | 
| VDSL | Very High Speed Digital Subscriber Line | A digital subscriber line (DSL) technology providing faster data transmission over a single flat untwisted or twisted pair of copper wires. | 
| VPC | Virtual Private Cloud | A logically isolated section of the Amazon Web Services (AWS) cloud. |