1. 1 Paola BoettnerMansi Gupta Wellesley CollegeBryn Mawr College Communication Virtual Machine Feature Analysis & Policy Definitions Advisor: Dr. Peter J Clarke PhD Students Andrew Allen & Yali Wu

2. 2 Motivation Collaborative Communication Applications should take into consideration:  Rich functionality  User priorities  User preferences

3. 3 What is CVM? CVM is a new paradigm for developing collaborative communication applications. [1]

4. 4 Problem Description Explore communication frameworks and analyze user needs to form policy structures for CVM  To extend the autonomic behavior of CVM Tasks: 1) Literature Review and Feature Analysis 2) Policy Definitions

5. 5 Feature Analysis [2] The process of identifying, collecting, organizing and representing information in a domain based on the study of existing systems and development histories. Take into account the ways in which the systems are alike (core features) and how they differ (additional features) in order to allow successful software re-use.

6. 6 Literature Review Identifying various communication frameworks Exploring each framework:  Core Features  Additional Features  API Scan developer websites, follow links, experiment with features Compile findings and analyze them using domain analysis

7. 7 Feature Table [4-11] Comments: *Audio conferencing in Skype depends on Hardware Single Core Processors- a maximum of 4 people allowed Dual Core Processors- more than 4 people allowed

8. 8 Feature Diagram

9. 9 Policies [3] A policy is a set of considerations designed to guide decisions on courses of action. They are rules that define the choices in the behavior of a system. Identify policy structures:  Use comparative study of features  Identify user needs by creating common scenarios  Create a GUI for users to create their policies

10. 10 Policy Design [3] Scope: What is or is not the subject of the policy  Service  Operation  Active Condition: When the policy is to be applied  Medium  Operation Business Value: labels relative priority allowing to make economic trade-offs  Business Group  Value Decision: describes desired outcome of a policy  Medium Attribute  ConnectionID  minVal  maxVal  boolVal

11. 11 Policy Example [1]

12. 12 User Interface Goals:  Outline the communication framework features for the user  Allow user to make choices based on preferences: features can be required or optional  Generate policies in XML to be read by the CVM  Present user with an ranked list of relevant frameworks Eliminate frameworks if they do not support one or more of the required features. Rank remaining frameworks according to the number of optional features they support (business value)

13. 13 Design

14. 14 Design

15. 15 Interface Implementation Scenario:  Chat: Optional Emoticons: Required Message Archive: Optional  Audio: Required  File Transfer: Required

16. 16 Results: Chat Policy ”Communication Object” ”selection” ”true” ”chat” ”request” ”general” 50 ”num_users” ”connectionID” ”connectionID.users”

17. 17 Results: Emoticons Policy ”Communication Object” ”selection” ”true” ”chat” ”request” ”general” 50 ”Emoticons” ”connectionID” ”connectionID.emot”

18. 18 Results: Message Archive Policy ”Communication Object” ”selection” ”true” ”chat” ”request” ”general” 25 ”msgArch” ”connectionID” ”connectionID.msgArch”

19. 19 Results: Audio Policy ”Communication Object” ”selection” ”true” ”audio” ”request” ”general” 100 ”num_users” ”connectionID” ”connectionID.users”

20. 20 Results: File Transfer Policy ”Communication Object” ”selection” ”true” ”fileTransfer” ”request” ”general” 100 ”num_users” ”connectionID” ”connectionID.users”

21. 21 Selection Process Chat: Supported by all frameworks Emoticon: Android is eliminated from the set Message Archive: Since it is optional, no frameworks are eliminated; however, the following frameworks are given a lesser business value:  NCB Native  AOL Instant Messenger Audio: Supported by all frameworks File Transfer: JML is eliminated

22. 22 Selected Frameworks 1) Skype, Google Talk, Yahoo! Messenger, Windows Live Messenger, Blackberry OS, Palm OS 2) NCB Native, AOL Instant Messenger User should be able to select framework according to their preference based on the ranked list

23. 23 Acknowledgements National Science Foundation Florida International University Dr. Milani Dr. Peter J Clarke PhD Students:  Andrew Allen  Yali Wu

24. 24 References [1] Deng, Y., Sadjadi, S.M., Clarke, P.J., Hristidis, V., Rangaswami, R., Wang, Y.:CVM - A Communication Virtual Machine. Journal of Systems and Software (2008)(in press) [2] Krut Robert, Zalman Nathan. Domain Analysis Workshop Report for the Automated Prompt Response System Domain, May 1996. [3] Allen Andrew. A, Leslie Sean, Wu Yali, Clarke Peter. J. Self- Configuring User-Centric Communication Services. ICONS 08 [4] [5] http://messenger.yahoo.com/features/ [6] http://get.live.com/messenger/features

25. 25 References [7] [8] [9] tp://www.palm.com/us/product/smartphone/tro755/ind ex.html [10] Skype Limited. Skype developer zone, Feb 2007 https://developer.skype.com/ https://developer.skype.com/ [11] Google. Googletalk, Sept. 2007. http://www.google.com/talk/. http://www.google.com/talk/.

26. 26 Questions?