1. A method for constructing a socio-technical network representing design and development processes, comprising: establishing a network of inter-personal interactions comprising at least a plurality of nodes representing actors in design and development process; establishing an artifacts network comprising at least a plurality of nodes representing a plurality of heterogeneous artifact types; determining, by a processor, one or more relationships between the nodes of the network of inter-personal interactions, representing communication acts between said actors; determining one or more relationships between the nodes of the artifacts network, representing traceability relationships expressing how an artifact derives from another; determining one or more relationships between the nodes of the network of inter-personal interactions and the nodes of the artifacts network, representing work relationships specifying which actor has worked on which artifact type; and graphically visualizing said network of inter-personal interactions with said one or more relationships between the nodes of the network of inter-personal interactions on a first plane, said artifacts network with said one or more relationships between the nodes of the artifacts networks on a second plane, and said one or more relationships between the nodes of the network of inter-personal interactions and the nodes of the artifacts network; correlating results of said analyzing step with one or more measurements associated with a project identified in said design and development process, said correlating enabling prediction of one or more properties associated with said design and development process.