• This is Harmony.
  
• A product for users who prefer CLI over GUI, and plays multiple games on multiple platforms with a wide network of online friends with different aliases.
• It allows the user to have quick access to the different aliases that their contacts may be using.
  
  
• Example usages:
  • as a starting point of a course project (as opposed to writing everything from scratch) * as a case study
• The project simulates an ongoing software project for a desktop application (called AddressBook) used for managing contact details.
  • It is written in OOP fashion. It provides a reasonably well-written code base bigger (around 6 KLoC) than what students usually write in beginner-level SE modules, without being overwhelmingly big.
  • It comes with a reasonable level of user and developer documentation.
• It is named AddressBook Level 3 (AB3 for short) because it was initially created as a part of a series of AddressBook projects (Level 1, Level 2, Level 3 ...).
• For the detailed documentation of this project, see the Address Book Product Website.
• This project is a part of the se-education.org initiative. If you would like to contribute code to this project, see se-education.org for more info.