The LIS5 Driver is comprised of pre-packaged VersaTest driver scripts built on Ascert's Driver Framework Standard (DFS), a component of the larger Ascert VersaTest Automation Server (VersaTest/AS) solution.

By following the VersaTest Automation Server model, the LIS5 Driver provides very fine-grained test definition, and a high level of test automation and validation. The exact format and contents of messages to be exchanged and verified can be defined and modified entirely through data and configuration files. This enables test analysts to create test cases and scenarios without needing to understand VersaTest's underlying scripting language (VTALK) or modify the LIS5 Driver script itself.

There are currently two versions of the LIS5 driver available supporting either the LIS5-2007 or LIS5-2008 releases of the LIS5 interchange.

The LIS5 driver can be used to simulate either LIS5 acquirers, LIS5 issuers or the LIS5 switch depending on what system(s) is/are under test.