MOSES will be implemented from 2017 to 2021. Technical developments and setup of the new observing systems will last approximately from 2017 to 2020. This period also includes the major testing phase of single observing systems as well as their interactions within the observation modules. To implement and test field operation procedures, first small campaigns are planned to start in 2018. These test series will continue until 2021 with increasing complexity until full event chains can be covered. Regular MOSES operation will start in 2022.