Systems and methods for updating values of roll-up summary fields (RSFs) associated with a data model are described. A server computing system receives data associated with roll-up summary fields (RSF) of objects of a data model. The data is in in a serialized format. The computer system deserializes the data to determine values of the RSFs at nodes of a graph associated with the data model. The computer system updates a value of a RSF at a first node of the graph. The computer system updates a value of one or more RSFs at one or more remaining nodes of the graph based on said updating the value of the RSF at the first node. The computer system serializes the values of the RSFs at all of the nodes of the graph to generate serialized data subsequent to said updating the value of the one or more RSFs at the one or more remaining nodes of the graph.