The term "application development" refers to the collection of activities or the "workflow" through which the user reaches her final goal. Being one of these activities, "data integration" means the transformation of data from one representation to another which might be of either the client`s one or some other representation. An example for data integration might be the case where the data is transfered from an OGC WFS and integrated into a client GIS.
Identify the different barriers for the integration of datasets
In Progress GI-N2K