This question is again to test your theoretical knowledge about TOGAF. You can expect all terms within the TOGAF domain to be questioned. TRM is one such term which is a model on which business architectures are built. TRM in TOGAF stands for Technical Reference Model, which refers to platform services and elements. TRM will ensure that business architectures are generated consistently based on the set goals. The TRM's architectural and technological building blocks will provide the substrate for commercial and administration applications that will supply the application and network services.