Ovarian cancer metastasis is a complex and deadly process that involves interactions between numerous cell types in diverse microenvironments. Using bioengineered models, we are analyzing this process in vitro, with the goal of identifying mechanisms that support tumor detachment, passage in the peritoneal fluid, reattachment to new sites, and remodeling of the microenvironment. A key tool supporting our efforts is the use of data-driven modeling techniques such as partial least squares regression.