Intermedia (hypertext)

Intermedia (hypertext). Intermedia was a pioneering hypertext system developed in the mid-1980s at Brown University's Institute for Research in Information and Scholarship (IRIS). Led by Norman Meyrowitz, the project aimed to create an integrated environment where users could link information across different applications. It is widely recognized for introducing foundational concepts like anchors and links within a multi-user, networked framework, significantly influencing the evolution of collaborative digital media.

Overview

Intermedia was conceived as a comprehensive environment to support teaching and research in the humanities. Unlike earlier systems such as Xanadu or HES, it provided a suite of interconnected applications including a word processor, graphics editor, and timeline tool. The system ran on Apple Macintosh computers under the UNIX-based A/UX operating system, connected via a local area network. Its design philosophy emphasized creating a "web" of connections between documents, prefiguring many concepts later realized in the World Wide Web.

Development and history

The Intermedia project began in 1985 under the direction of Norman Meyrowitz at Brown University, with key contributions from researchers like Nicole Yankelovich and Karen Catlin. Funded by IBM and Apple Computer, the work was conducted within the Institute for Research in Information and Scholarship, an interdisciplinary center focused on educational technology. Development coincided with the rise of graphical user interface paradigms and built upon earlier hypertext research, including Douglas Engelbart's NLS and Ted Nelson's work. The system was actively used in courses at Brown University until the early 1990s, when project funding concluded and development ceased.

Technical features and architecture

Intermedia's architecture was built around a central Link Server that managed bidirectional links between anchors in various document types. This server enabled multi-user access and maintained link integrity across the network. Applications like InterWord, InterDraw, and InterVal shared a common linking protocol, allowing users to create connections between text, graphics, and temporal data. The system utilized a distributed file system and employed an object-oriented approach for managing documents and links. Key innovations included the implementation of typed links and a global directory service for navigating the information web.

Applications and use cases

The primary application of Intermedia was in academic settings, particularly for creating and teaching with hypermedia course materials. Professors at Brown University used it to build interconnected archives for subjects like English literature and biology, where students could explore linked commentaries, manuscripts, and scientific diagrams. Notable projects included the "Context32" collection for a modern poetry course and the "Egyptian Art" archive, which linked artifacts with historical timelines. These implementations demonstrated the system's utility for collaborative scholarship and nonlinear pedagogy, influencing later educational software and digital library initiatives.

Influence and legacy

Although Intermedia itself was discontinued, its conceptual and technical contributions had a profound impact on subsequent hypertext and web systems. Its model of application-level linking directly inspired the HyperCard environment developed by Bill Atkinson at Apple Computer. Many core ideas, such as the use of a centralized link server and anchor-based linking, were reflected in later systems like the World Wide Web, conceived by Tim Berners-Lee at CERN. The project's research also informed the development of open hypermedia systems and standards, contributing to the fields of human-computer interaction and digital humanities.

Category:Hypertext Category:Educational software Category:Brown University