Today’s financial electronic markets are a result of theremarkable development in information technology during thelast years. With the growth of electronization in financialmarkets and the establishment of new electronic tradingservices the design of the market structure moved in the focusof...

The success of electronic markets does not only hinge uponscalable IT platforms combined with extensive marketingcampaigns. Scientists and practitioners tend to agree thatelectronic markets have to be carefully designed, since evensmall failures in design decide on the overall success orfailure...

In der Literatur ist weitgehend unbestritten, dass komplexen Problemen im Lehr-Lernprozess eine große Bedeutung zukommt. Das Projekt IMPULS geht ebenfalls von dieser Position auf und nutzt für die Konstruktion computer- und netzbasierter Lernangebote den Ansatz "Problem-Based Learning" (PBL)...

Duffy and Jonassen published a text in 1992 titled: “Constructivism and the Technology of Instruction: A Conversation” (Duffy & Jonassen, 1992). The book summarizes the struggle between two camps: between the so-called intructionists, instructional designers, objectivists or technicians on...

With crowd labor markets such as Amazon Mechanical Turk (MTurk for short), oDesk, or Clickworker, it is relatively easy to access a large, distributed workforce with different skill and pay levels on demand. The crowd processes tasks which range from simple repetitive email tagging to creative...