Aspects of the disclosure relate to managing code origination data for a stream computing environment. A first set of code origination data which corresponds to a first computing object and a second set of code origination data which corresponds to a second computing object may be detected for utilization to develop a streaming application in the stream computing environment. Based on the first and second sets of code origination data, a code assembly arrangement with respect to the first and second computing objects may be determined. The code assembly arrangement may be established with respect to the first and second computing objects to develop the streaming application.