1. NetChat Communications Systems Steven Fuqua Barnett Trzcinski Andy Street

2. Abstract Development of a standards-based, modular, networked communications protocol. Use of this NetChat Protocol (NCP) to create an application to allow end-users to communicate/distribute information over various media  Instant messaging  E-mails  News

3. Design Extensible – Use of user-creatable modules to provide means of adding functionality Modular – Separate plugins for various means of communication Standardized – Use of XML to encode messages as they relate to specific modules in a standardized protocol

4. Construction Server – Coded in Ruby, handles connections and parses client information Clients – Connect to the Ruby server, receive user input, parse it, and relay it to the server for processing  Py-Client – Coded in Python, provides a text- based interface for testing new features  J-Client – Coded in Java, sports a graphical interface for a production-quality release

5. Server – Barnett Trzcinski Scripted in Ruby  Standard library  Opt-parsing based configuration Allows for SSL/NCP connections as needed Threaded to handle multiple connections Interprets received messages

6. Py-Client – Steven Fuqua Scripted in Python 2.5  Twisted networking framework  Dynamic reload functionality Text-based interface, serves as test bed Takes specialized commands to communicate with the server Uses method reflection for commands and message parsing

7. J-Client – Andy Street Coded in Java  Xerces XML library GUI, release quality client Threaded to send and receive messages Uses method reflection for server command parsing Use of XML data objects to convey information

8. Analysis XML serves as a flexible medium with which to encode data Modularized format allows for easily updating or future expansion Could potentially add functionality to network servers, distributing client load

9. Images – Quiet Server

10. Images – Verbose Server

11. Images – Quiet Py-Client

12. Images – Verbose Py-Client

13. Images – J-Client