NHS Blood and Transplant requires a direct contractual relationship with either a manufacturer or any other economic operator for a complete end-to-end integrated solution for the Microbiology Serology screening/testing of blood and non-blood donations , which must include all the necessary equipment, installation, maintenance, consumables, reagents, software including an inter-interoperability provision with NHSBTs existing IT infrastructure and overall ongoing support mechanism that may be required to carry out the necessary testing.