1. A method for constructing a validation trace using a real network without causing privacy concerns, the method comprising the steps of: providing a client device which has one or more applications operating thereon and a graphical user interface; recording user interactions on the client device; extracting usage scenarios from real network traffic in the real network; emulating user actions on the client device according to a specific user scenario by utilizing the recorded user interactions and the extracted usage scenarios to generate additional real traffic in the real network; and creating the validation trace based on the generated additional real traffic and the extracted usage scenarios.