A Pioneer of Digital Search Dies at 95
A pioneer of digital search, Summit developed the technology at Lockheed Missiles and Space Company in the 1960s, creating one of the first online services to allow users to remotely access and search vast scientific and technical databases decades before the public internet became a staple of daily life.
Automating the Library at Lockheed
In 1966, while working for Lockheed Missiles and Space Company, Roger Summit began conceptualizing a system to automate the labor-intensive process of library research. At the time, researchers at the firm frequently noted that it was often faster to redo an experiment than to locate existing technical literature in physical card catalogs.
Summit envisioned an interactive, computer-based system that allowed a “searcher” to input queries directly to a machine. He chose the name “Dialog” to reflect this two-way communication between human and computer. By 1967, Lockheed successfully piloted the system with NASA, connecting the platform to a database of over 250,000 documents. According to documented evaluations from the time, NASA scientists reported that the system reduced search times from hours to minutes, significantly increasing productivity.
The Expansion of Commercial Access
Following the success of the NASA proof-of-concept, Lockheed expanded the platform’s utility to other government entities, including the U.S. Atomic Energy Commission and the European Space Research Organization. In 1972, the company transitioned Dialog into the commercial sector.
Dialog operated by connecting computer terminals to centralized databases via telephone lines. In 1988, Lockheed sold the Dialog service to the newspaper conglomerate Knight Ridder for $353 million. The asset has since changed ownership multiple times and is currently operated by the information-services firm Clarivate.
Foundations of the Search Era
While Dialog predated the widespread adoption of the internet and commercial search engines like Google and Yahoo, historians recognize it as a foundational influence on modern information retrieval. Marc Weber, an internet historian, has cited Summit as a key figure in the history of search, noting that Dialog was present at the inception of the field.
Summit, who held an M.B.A. from Stanford University, often compared the difficulty of finding information in the pre-digital age to searching for Ali Baba among countless oil jars. In his later years, he expressed fascination with the evolution of the technology he helped pioneer. During a 2005 presentation at Google, Summit remarked that the retrieval speeds achieved by modern search engines were “beyond my imagination.”
He is survived by his wife, Virginia Buckhorn, and their two children, Scott and Jennifer Summit.