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Synchronizing Mobile Analytics Applications

Synchronization is the mechanism that downloads data from the enterprise analytics machine to the mobile machine for each user. The first time synchronization occurs, all historical data is downloaded. After the first synchronization, the incremental synchronization feature allows incremental data downloads.

The first time users synchronize their application, they will be asked to create a username and password. This is controlled by the SETDBUSER parameter default value = YES in the Windows registry. After a user types their username and password, the value changes to NO. As a result, subsequent synchronizations do not require a username and password.

Currently, synchronization only downloads data to the mobile machine. It cannot upload data from the mobile machine to the enterprise machine.

A user can download data in the following modes:

• Online mode. The user submits the data set generation query in real time. The server generates and returns the data to the user. In this mode, the user must wait until the entire data set has been downloaded to their machine. Therefore, online synchronization should only be used occasionally and when a specific need requires it.
• Preprocessed mode. The administrator schedules the data set generation on the server. This requires that you have installed and set up Delivers. The data sets are generated for each user and maintained until a new data set is generated. The Analytics Server does not delete the data sets. When a user synchronizes their application, the preprocessed data sets for that user are identified and then downloaded by the Disconnected Analytics Application Manager. Therefore, the amount of time required for synchronization depends on the speed of this compressed data set download.

This section discusses the following topics about data synchronization:

• About Preprocessed Synchronization
• About Incremental Synchronization
• Synchronizing Mobile Analytics in the Background (Silent Mode)