DICOM objects, such as images, are composite IODs that include attributes of different real-world entities (e.g., a CT image would include attributes describing the patient and imaging study, alongside the attribute with the details of CT image acquisition). The resulting real-world model is comprehensive, incorporating a variety of objects corresponding to imaging modalities, imaging-derived data (e.g., results of post-processing and annotation of images), and imaging-related data (e.g., clinical information describing relevant patient characteristics or specimen handling).