The concept of the Small Aircraft Transportation System (SATS) was first envisioned in the late 1980s in a workshop by the AIAA, NASA, FAA, and industry titled, "The Role of Technology in Revitalizing the U.S. General Aviation Industry." The SATS concept was first articulated by that name in the 1997 presentation by NASA at the Oshkosh Airventure Convention, "Life After Airliners." The SATS concept emerged from the work of the Advanced General Aviation Transport Experiments (AGATE) Alliance. The AGATE Alliance was a public-private partnership (1994-2001), established by NASA, between government and industry to revitalize the technology deployment capacity for the U.S. General Aviation industry. Based on the technology design guidelines, system standards, and certification standards developed by AGATE, a new generation of personal transportation aircraft were developed by industry from around the world. These new aircraft appear to be economically and operationally viable for use in on-demand transportation fleet operations. The first of the fleet operators began services in 2005, with increasing numbers of companies starting operations in 2006 and 2007.