The degree to which the mobile application is coupled with the location of devices and how this location is made available to users is a key design decision in supporting different interaction styles. The device used and the form of interaction it supports is no the sole determinant in the form of interaction. Rather it a product of the location of the devices and the location of other devices. This means that we need to consider the issues involved in the correspondence between these devices and their location. For example, if a guide describes a particular location and is dependent on references to that location to support the interaction we must ensure that this contextual reference is maintained.
It is essential that our approaches to design explicitly involve the issues of location and the link with
these contextual cues