In the following sub sections some major characteristics and definitions on LBS will be given. We will discuss the relation between GIS and LBS and give some Keywords which are useful to describe the LBS Technology. Later the basic LBS components are introduced shortly. Finally we will explain what a Push and a Pull Service is.
Figure 2 of the Introduction shows that GIS and LBS have some particular similarities. Such common features are the handling of data with positional reference and spatial analysis functions (LBS-services).