© The Author(s) (Published by Association for Information Systems) Posted on February 10, 2014 by SCG DR Copyright Holders: The Author(s) Self-archiving policy Conditions Accepted version: √ Published version: √ Remarks: The WU Vienna hosted the conference but did not request the transfer of copyrights from the authors.Since the authors hold the copyright, we will archive the published version in DR-NTU. ( verified by Bo Siang via email) Verification Date: 29.01.2014
