Load Model

Choosing the correct load model is very important and depends on:

• What we want to test (the type of application and so on)
• The goal of the test (comparison between two versions and so on)

Let's look at the main load models.

There are two main models:

• Closed model: There are only a given number of users in our system, and a new user cannot enter the system before the end of another one.

  This model is used in some ticketing websites to limit the number of concurrent users. The limit is made to prevent the website from crashing and customers from going to a competitor's site to buy their tickets.

  This model is also used in call center applications because the number of concurrent calls is limited by the number of operators.

  This model can be used in closed user groups (groups of employees in an intranet, private forums...) where we know the maximum number of users. In this case, we will simulate the maximum number of possible users.

  In this model, each VU depends...