The Associative PDA


Common systems for personal information management fail because of poor support for mobile use, separation of information, and increasingly
complex hierarchical structures, which are hard to search. With the Associative PDA we propose an associative system that overcomes the shortcomings of previous systems.

Interal Project page


The first version of the Associative PDA was realized and evaluated as a Flash prototype, exploring the general acceptability and use of associations:

For the second version, we concentrated on note-taking as an example of a PIM activity and developed an elaborate, mobile prototype that was evaluated in a long-term study.


We have shown that the use of associations for personal information management is well-understood and perceived as useful by the users. Further, the use of associations for note-taking has led to very efficient search behavior.

Future Work

We want to show the general usefulness of associations for personal information management by evaluating an elaborate and complete prototype with real information.


The Associative PDA was presented as a Work-in-Progress poster at the conference on ubiquitous computing (UbiComp) 2006.

The Associative PDA 2.0 was presented as a Work-in-Progress poster at the conference on Computer-Human Interaction (CHI) 2008.

File Description File size Downloads Last modified
apdaposterprop.pdf Ubicomp Poster Summary 49 kB 4318 2008-02-28 18:54
apdaposter.pdf Ubicomp Poster 86 kB 4462 2008-02-28 18:54
apimprop.pdf Proposal 16 kB 4190 2008-02-28 18:55
chi08poster.pdf   1110 kB 3989 2009-01-16 12:02

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