In short the owners became the facilitators as much as designers and implementers. It is developed as an open standard to foster interoperability between software from different implementers. However, the 10303 EXPRESS schemas are freely available, as are the recommended practices for implementers. The community includes end users, implementers and subject matter specialists. NGOs act as implementers, catalysts, and partners. The Initial specification available to implementers was called TDIF-1 Version 1.0. SMB2 involves significantly reduced compatibility-testing for implementers of the protocol. The main reason for this omission is to not unnecessarily constrain implementers. USAID finances several types of implementers using a variety of funding agreements. TCS-BIN is only used by the cordless telephony profile, which failed to attract implementers. The required effort for software implementers is very small. These manuals were used by the Multics group and other early implementers. Lower level implementers carry out the policy. "Zork, the Super Adventure developed by the Gang of Four Implementers at MIT". It was adopted as a standard by the USB Implementers Forum in 2007.