The lab work can be done at the lab or at home using the environments: Eclipse, Netbeans or the basic tools included in J2EE. There are no restrictions about where and when the students do the lab work (following a PjBL schema). Nevertheless, we have a general roadmap with milestones and every week; we provide at the lab a description of the task recommended at every milestone (PBL). This information is also available at the course web site in the Virtual Campus and it allows to follow a PBL, oriented to finish the whole coursework; providing orientation for lost students.