Personal Information Management (PIM) deals with information that is relevant to its owner and his everyday life, e.g. addresses, emails, or all kinds of personal documents. Since most PIM activities happen in transit, mobile support is indispensable. There do exist many mobile systems to support PIM, but without any adequate solution yet. The major cause is the lack of an appropriate underlying information structure: common hierarchical structures are inefficient in terms of information retrieval, which, however, constitutes an important task in PIM. This work addresses this and more problems. It describes a system based on an associative network of information instead of a conventional hierarchical file system: all personal information is connected with further information, representing a semantically meaningful coherency. Information can either be associated manually or generated fully automatically from context information, such as date/time, location, and people present at a location.
This book describes the development process including a long-time evaluation. It addresses all developers and designers who place value on user-friendly software.