Company integrators, own software platform is small, now the company want to do some market related to software, is usually the kind of the PPP projects, find a government-funded (our company qualification can also), but this kind of project is generally from layers of subcontract, we don't hope our upstream of the units with our downstream enterprises (provide actual software platform) before needs to talk to the owner, and I as an integrator, and don't know much about the software products to the downstream enterprise, want to ask you, in this case, how should do?