Telegram-Web suffers from significant technical debt, so a plan is proposed to pay off this debt. Finally technical debt in the project is analyzed. This perspective is interesting because Telegram-Web supports multiple languages, and a strict procedure is used to guarantee the quality of translations. Telegram-Web is further investigated from the internationalization perspective. The deployment view is relevant, because the deployment of Telegram-Web is somewhat unconventional. Then its architecture is discussed by means of a context, development, and deployment view. First its features and stakeholders are discussed.

In this chapter, Telegram-Web's architecture is analyzed. Later, it became the official web-client for Telegram. Telegram-Web started as a hobby of its creator, Igor Zhukov, and was an unofficial client at first. It is hosted on and also packaged as Chrome and Firefox extensions. Telegram-Web (a.k.a Webogram) is the official web client of Telegram. All of Telegram's official clients are open source projects. There are official Telegram clients for various mobile and desktop platforms, and an official web client. It offers a well defined public API to enable developers to implement their own systems. Telegram is a free, cloud-based instant messaging application with a focus on security and speed. Because of their text-based nature they can also be used in many settings. They allow for effective communication, because a recipient can almost instantly see a received message. Instant messaging applications offer real-time transmission of text over the internet. A plan is proposed to pay off this technical debt, which will make contributing to Telegram-Web easier. Also, most of the code is not covered by testing and almost no documentation is present. One form of technical debt is the lack of a modular structure. The project contains a lot of technical debt. The application is built using AngularJS, UI bootstrap and CryptoJS. Its sole maintainer is Igor Zhukov, who started the project as a hobby. Telegram-Web is a client-side web-application, which uses the Telegram API to enable instant messaging functionality in web browsers. Kilian Grashoff, Bart Heemskerk, Baran Usta, Michiel Vonkĭelft University of Technology, 2017 Abstract

Telegram messenger web