Please find details about the template in the assignment document.
Each Maven module has a corresponding profile that contains the build config for the respective module. For example, to build the JPA task of assignment 1, run
mvn clean install -Pass1-jpa
You can add the -DskipTests flag to skip JUnit test execution.
There is also a profile all, that includes all modules.
You should activate this profile in your IDE's Maven (IDEA,Eclipse) configuration!