Abstract
This section describes the requirements which must to take into account with regard to the annotation and querying of temporal information sources. In the following, we discuss how our qualitative abstraction of time is represented. Temporal relevance is an important feature for the calculation of overlapping time periods with unknown boundaries. This is discussed in the following subsection. We will also describe the development and implementation of new reasoning components and demonstrate the performance of this approach with examples.
This chapter summarizes ideas that have been published elsewhere [125]. The representation and reasoning features described in this chapter are also based on the results of a masters thesis [52] that I initiated and supervised. This part of the BUSTER approach has been introduced lately [125].