Abstract: In general, embodiments of the present invention provide systems, methods and computer readable media for providing a belief data modeling service for representing and operating belief models data. In embodiments, a belief data modeling service may be configured to perform operations comprising receiving a belief data modeling service request including an input data model representing a set of data, a set of input parameters including at least one of observational data and modeling data, and an operation to be applied to the input data model using the input parameters; and, in response to receiving the belief data modeling service request, generating an output belief data model of the set of entities by generating new states and a set of logical conditionals that constrain the states for at least a subset of the entities by applying the input operation to the input data model.