LN Architecture

A three-tier architecture is supported by LN.

This list shows the three tiers:

  • A display tier

    The display tier provides presentation services for user interaction.

  • An application tier

    The application tier consists of the LN application virtual machine, the application objects and the LN database driver.

  • A database tier

    The database tier consists of a third party RDBMS product that acts as the database server.

The emphasis of this document is the LN database driver. The database driver is the interface between the LN applications and the RDBMS server. The database driver translates database requests from the LN application virtual machine to RDBMS specific SQL requests that are sent to the database server. After the database server retrieves the requested information, the database driver passes the data back to the LN

To put the functions of the database driver into perspective, the three tiers of the total LN architecture are shown in this diagram: