Education in schools and universities suffers from different
problems like the lack of interaction between the lecturer and
the students as well as the fear of asking irrelevant questions or
providing wrong answers in front of a large audience. A lot of
systems exist that try to solve these issues by means of technical
tools; e.g., audience response systems. Each of these individual
systems supports different functional scopes with different
didactic purposes in order to support specific use cases. For the
lecturer, it is very hard to choose an appropriate system.
Besides the functional scope, there are a lot of predefined
limitations, such as a given room with technical restrictions or a
favorite operating system and presentation software to present
the slides. This paper gives an overview of fifty existing
systems (with varying degree of detail) and proposes a filter
mechanism based on the index card metaphor to select
appropriate systems depending on their individual limitations.
In order to simplify this selection process for the lecturer, the
filter mechanism is implemented in a web-based selection tool.