This case study provides details about a recently completed services engagement for a global manufacturer of industrial control systems. Our client engaged Vector Software Global Services (VSGS) to perform unit testing and collect Code Coverage information within their System Testing Environment. The device under test is a system which monitors the content levels for oil tankers. Monitoring the content level is not only extremely important for billing purposes, but it can also detect leaks or seepage. Depending on atmospheric conditions (heat and humidity) the tanker’s volume can change. Due to the huge size of the tanks, any slight miscalculation can cause significant revenue loss or undue gain.