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Java Developer Oriented Comparison of Communication Services Sean Leslie Ricardo Tirado 1 Introduction Project Title Self-configuration of UCM layer for CVM Project Goal Incorporate Google Talk and JML functionality into CVM Apply self-configuration to UCM Project Status In-depth inspection and comparison of communication API Survey Paper 2 Introduction Problem No criteria for rating communication services or their API No comparison of JML, NCB, Skype, Google Talk/Smack No one communication service satisfied all of our needs Motivation Develop criteria for comparison Apply this criteria to JML, NCB, Skype, Google Talk/Smack Provide Java developer oriented comparison of these four service layers 3 Background Historical Brief Communication: Essential to mankind civilization Internet: new model perks Email Instant messaging Voice conversation 4 Background Autonomic Computing Self-configuring behavior in computing systems. Communication Virtual Machine Paradigm shift on the development of today’s communication applications. 5 Background Communication Frameworks Reusable partial application for communication Implements protocols Focus on applications top requirements Examples JML Smack Eclipse Communications Frameworks 6 Communication Features Core Features Chat (1 to 1) Chat (Group) Contact List Audio (1 to 1) Video (1 to 1) Video (Conference) File Transfer Additional Features Scrolling Marque Text Emoticons Online Status Avatar Images Voicemail 7 Java MSN Library (JML) Pros Presence File transfer Open source Simple Contact list 1-1 chat 1-all chat Cons Some code must be implemented Limited features for third part clients. No streaming videos. No voice chat. No video conferencing. No file-sharing. Poorly documented Project is still in early development. 8 Skype Pros Presence Contact list 1-1 and group chat 1-1 Audio calls(PC-PC) 1-1 Audio calls(PC-Land) Voice conferencing 1-1 Video Cons No file-sharing Not open source No Video Conferencing 9 Smack/Google Talk Why use smack? No complete Java implementation of Google Talk API XMPP supported Cons Pros Presence Contact List File transfer Open source 1-1 and Group chat Audio Chat (PC-PC) Well documented Limited features in comparison to Google Talk No video. http://www.igniterealtime.org/builds/smack/docs/latest/documentation/ 10 Network Communication Broker (NCB) Pros Presence Contact List 1-1 and group chat 1-1 voice chat (PC-PC) Voice conferencing 1-1 video chat (PC-PC) Video Conferencing Cons No file transfer Not fully tested 11 Comparison (Features) Identify the core features Award a check for each core feature present in the API List additional features and award a check for additional features Availability of features Criteria Additional Features Core Features Chat (1 to 1) Scrolling Marque Text emoticons Chat (Group) Contact List Online Status Avatar Images Audio (1 to 1) Video (1 to 1) Video (Conference) File Transfer Voicemail JML NCB Skype Smack/GoogleTalk 12 Comparison (Documentation) Identify different kinds of documentation Award a check for each form of documentation provided Documentation Criteria Javadoc Comments in Javadoc Tutorial White paper Examples Additional Features JML NCB Skype Smack/GoogleTalk 13 Comparison (Totals) Total each category for a side-by-side comparison Totals Service JML NCB Skype Smack/Google Talk Documentation Core Features Additonal Features 40% 40% 80% 80% 57% 86% 86% 71% 60% 20% 80% 60% 14 References [1] http://www1.cs.columbia.edu/~salman/publications/skype1_4.pdf [2] http://www.skype.com/ [3] https://developer.skype.com/ [4] http://www.columbia.edu/~cga2104/skype4java/ [5] http://blackhat.com/presentations/bh-europe-06/bh-eu-06-biondi/bheu-06-biondi-up.pdf [6]Yi Deng, S. Masoud Sadjadi, Peter J. Clarke, Chi Zhang, Vagelis Hristidis, Raju Rangaswami, and Nagarajan Prabakar. A communication virtual machine. [7] https://jain-sip.dev.java.net/ [8]http://edition.cnn.com/books/beginnings/9811/internet.time/index.html "article on netscape v. Microsoft" [9] http://www.livinginternet.com/i/iu. [10]http://www.igniterealtime.org/builds/smack/docs/latest/documentation / 15