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Symbolics Document Examiner
Symbolics Document Examiner is a powerful and early hypertext system developed at Symbolics (a manufacturer of high-end workstations) by Janet Walker in 1985. The Symbolics Document Examiner was first used for a hypertext implementation of the Symbolics manual in the sixth release of the Genera operating system, and was well liked, winning an award from the Society for Technical Documentation.〔"The Document Examiner included with Release 6 won an award from the Society of Technical Documentation. The Symbolics Graphics Division introduced S-Paint, S! ! -Geometry, S-Render, and S-Dynamics as part of an integrated video-compatible image-making and image-processing facility." "(Symbolics Technical Summary )", 1985〕
The Symbolics manual was an 8,000 page document that was represented in a 10,000 node "hyperdocument" containing 23,000 links in all. The entire manual required 10 MB of storage space - a significant amount in 1985, even on the Lisp machines Symbolics sold. The Symbolics Document Examiner used a hierarchical structure, which differed from other experimental hypertext systems; it apparently was partially inspired by an even earlier hypertext system, the precursor to Texinfo which originated with Emacs〔"We saw no reason to have the underlying information structure be reflected in the user interface model unless that structure was a good model for interacting with information. My experience in trying to help users with a tree-structured information interface (the INFO subsystem in EMACS) led me to believe that a book-like interface would be more palatable for many people." pg 8 of Janet H. Walker's "(Document Examiner: Delivery Interface for Hypertext Documents )". 1987, ''Proceeding of the ACM conference on Hypertext''〕
Symbolics Document Examiner users could add bookmarks, which allowed returning to specific items easier; this method was later incorporated in graphical web browsers. The system also supported on-line substring searching. The biggest drawback to the Symbolics Document Examiner was that users could not make changes to any information or to a document's navigation.
The authoring environment for the Document Examiner was Symbolics Concordia. With Symbolics Concordia it was possible to edit all documentation.
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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