We use VuGen to make a Vuser script by recording a user performing typical business processes on a customer application. VuGen makes the script by recording the activity among the client and the server. For example, in web based applications, VuGen monitors the client finish of the database and traces all the requests sent to, and received from, the database server. We use VuGen to: Monitor the communication among the application and the server; Produce the required function calls; and Insert the generated function calls into a Vuser script.