Wikis: Do they need usability engineering? Michael D. Kickmeier-Rust Martin Ebner Andreas Holzinger

http://www.readwriteweb.com/archives/social_networks_vs_portals.php Social Network

Web 2.0 – an overview virtual operating system Flickr virtual desktop Blog Wiki Pod-cast File-sharing Flock Mash-Up Social Book- marking YouTube Writely

Wiki Concept of Wiki by Bo Leuf and Ward Cunningham in 1995 Name from Hawaiin word wikiwiki Online platform every user can create or edit articles First implementations: wikiwikiweb, CoWeb and Nupedia

Concept of Wiki by Bo Leuf and Ward Cunningham in 1995

Name from Hawaiin word wikiwiki

Online platform every user can create or edit articles

First implementations: wikiwikiweb, CoWeb and Nupedia

http://de.wikipedia.org/wiki/Bild:Wikipedia-logo-de.png Wikipedia

Wikipedia principles in Higher Education BauWiki [http://bauwiki.tugraz.at]

First Study Online encyclopedia for structural concrete Students can edit, create article on voluntary basis Online collaboration leads to a high number of articles Students are allowed to bring printouts to the exam Lasting 3 months, N = 152, two universities

Online encyclopedia for structural concrete

Students can edit, create article on voluntary basis

Online collaboration leads to a high number of articles

Students are allowed to bring printouts to the exam

Lasting 3 months, N = 152, two universities

Result First Study As a result it must be pointed out, that in the case auf BauWiki (structural concrete) almost nobody actively participated.

Second Study Online encyclopedia for building informatics (concerning Visual Basic for Applications) Students are forced to write an article Students are allowed to use Bauwiki during examination Lasting 2 months, N = 135

Online encyclopedia for building informatics (concerning Visual Basic for Applications)

Students are forced to write an article

Students are allowed to use Bauwiki during examination

Lasting 2 months, N = 135

Result Second Study As a result it must be pointed out, that in the case auf BauWiki (VBA) almost nobody actively participated apart from the forced article.

Evaluation Result I

Evaluation Result II Study II: Quality of articles 2,63 (SD = 0,78) Study II: Is Wiki a good idea 1,70 (SD = 0,83) Relationship between prior experiences with wikis and estimated time to get familiar with it = significant correlation

Study II: Quality of articles 2,63 (SD = 0,78)

Study II: Is Wiki a good idea 1,70 (SD = 0,83)

Relationship between prior experiences with wikis and estimated time to get familiar with it = significant correlation

Summary WikiPedia Wikipedia principle in education Communities of Practice Learning communities Achieved-oriented behavior =

Atkinson model Tendency for an achivement-oriented behavior Probabilitiy of sucess Probabilitiy of failure Expected incentives (usabilty) (motivation)

Statement Future work must increasingly address to usability of wikis.

http://elearningblog.tugraz.at Flickr, uploaded by leightblackall http://www.flickr.com/photo_zoom.gne?id=64955399&context=set-1402220&size=o