20 Patterns: Pervasive and Rich Device Access Solutions
2.1 Pervasive access applications
Pervasive access applications are those that allow you to access your business
resources on the road from pervasive devices such as PDAs or cellular
telephones.
Pervasive access applications have a common set of features to fulfill the
business and IT requirements required by an organization desiring mobile
access to its resources. These include:
Online and/or offline application capabilities for maintain access to certain
resources even without network connectivity
A client-side repository such as a database or file directory to store data to be
used and updated on the road
A means of synchronizing data on the mobile devices with a back-end
resourc ...