Social Software links social entities on the Internet. With this term we label new communication and collaboration media like wikis, blogs, social bookmarking but also traditional media supporting communities of practice. Scientific and professional communities challenge information systems engineering with high demands on traceable and secured collaboration and processing of scientific data. Flexibility, adaptation, interoperability are only a few requirements to mention. With the advent of international standards XML-based standards like MPEG-7 for the handling of complex multimedia metadata and service oriented architectures engineers and community facilitators can create more generic services for the many communities with diverse but professional needs. Therefore, communities have to be incorporated in the community information systems engineering process. In the talk we present a new reflective information system architecture called ATLAS offering self observation mechanisms for the establishment of a community-centered learning and improvement process for social software.

1. Ralf Klamma RWTH Aachen University SCOOP Workshop Bremen, August 30, 2007 Social Software and Community Information Systems

9. Learning Support for CoP: Reflective Collaborative Support Cross-Media Community Information Systems Self-observation tools for Communities Measure, Analyses, Simulate Socio-technical information system Development Jarke, Klamma: Social Software and Reflective Information Systems, 2006 Klamma, Spaniol, Cao: MPEG-7 Compliant Community Hosting, JUKM, Springer 2006 M. Kalz, M. Specht, R. Klamma, M. A. Chatti, R. Koper: Kompetenzentwicklung in Lernnetzwerken für das lebenslange Lernen, 2007

12. CESE: Multi-lingual Cross-Media System Published in: DS-NELL 2000, ICALT 2002, ICWL 2002, WWW 2003

14. Implementation in Academic Courses Rohde, Klamma, Jarke, Wulf: Reality is our laboratory: communities of practice in applied computer science, B & IT 2007 Rohde, Klamma, Wulf: Establishing Communities of Practice among Students and Start-up Companies, CSCL, 2005 Course and lab „Hightech Entrepreneurship and new Media“ Several instances at RWTH Aachen University and University of Siegen

18. Simplified Meta Model for ANT using Latour Actor Attribute has isA isA Latour: On Recalling ANT , 1999 Klamma, Spaniol, Cao: A model for social software, IJKL 2007 Member Network Learning Service Medium Artifact stores creates is affected by belongs go represents consumes performs ranks … Match Retrieval Browse Search

22. PALADIN Case Study 10 patterns of disturbance over 119 social network instances, 17359 individuals, 215 345 mails Occurs in big networks where the members are distributed in different clusters. 40 No Leader Occurs for members having neighbors with only one contact. 67 Structural Hole Occurs in large networks where disconnected subnetworks exist. Scalability is necessary. 13 Independent Discussions The pattern occurs in the network centered around a member. 37 Leader Spammers can be found often in discussion groups. False positives exist. 86 Spammer Troll occurs very rarely in cultural communities. True negatives exist. 2 Troll Occurs in small networks. The effects of the lack of an answering person must be further checked with content analysis. 61 No Answering Person The existence implies that the network is not popular. 67 No Questioner The existence implies little communication in the network. 76 No Conversationalist The pattern finds out topics which were very important for certain period of time. Scalability is necessary. 22 Burst Remarks Occurrences Pattern

25. Virtual Campfire: Mobile Social Learning International Community GPS-enabled Media production Mobile Media Management Context through storytelling Community Facilitation Use and Creation in Community Media Organisation Structure Media Settings Mobile Server Standard-conform Web Services Further protocols P2P data management Non-linear stories MPEG-7 & MPEG-21 Multimedia Adaptation Context Reasoning