The purpose of describing the optical planning use cases is to provide a base for reviewing how the function of online optical planning should be incorporated into the TIP MUST Open Transport SDN Architecture. The scope of the optical planning is to plan the properties of Open-Optical Networks O-ON with its O-OLS (Open-Optical Line System) and connected O-OLI (Open Optical Line Interfaces). To prepare a proposal for implementation of the use case functionality, all necessary topics of relevance should be reviewed. In section 4, input is given for consideration on a solution, however this is not a complete description but the first set of important topics shared by the operators. Any other topics of relevance have to be identified during the continuing work.