The Sustainable Indian Ocean Tuna Initiative (SIOTI) is a large-scale Fisheries Improvement Project (FIP) comprising the major purse seine fleets and tuna processors in the region. As part of the activities of the FIP, we have explored options for harvest strategies that account for the technical interactions between the three tropical tuna stocks exploited in the Indian Ocean. For this, we have reviewed the different steps and components of the Management Strategy Evaluation (MSE) process that will need to be developed. As a start of this process, we have developed different multispecies management objectives, we have conditioned a preliminary multispecies operating model and we demonstrate the utility of multispecies management procedures.