NDLI: An integrated system for creating and presenting complex computer-based documents

Content Provider	ACM Digital Library
Author	Nagy, Sandor Van Dam, Andries Feiner, Steven
Abstract	An experimental system is described for the design, development, and presentation of computer-based documents that combine pictures and text on a high-resolution raster color display. Such documents can be used, for example, for maintenance and repair tasks or computer-aided instruction. Documents are directed graphs whose nodes we refer to as pages, in analogy to the pages of a paper book. A page includes a set of simultaneously displayed pictures, actions (procedures and processes) triggered when the page is accessed or when pickable picture elements on it are selected, and indexing information. Pages may be nested arbitrarily deeply in chapters that serve much the same organizing function as those of conventional books. The system is comprised of separate programs for laying out and drawing pictures, for graphically specifying the contents of pages, chapters, and their interconnections, and for displaying the document for user interaction. Examples are given from a prototype document for the maintenance and repair of computerized numerical control equipment. Emphasis was placed on designing actions for simple realtime animation (both by color table techniques and by transforming named primitives and manipulating their attributes), and for finding one's way around the document (displays include: a “timeline” of recently visited pages, immediate predecessor and successor pages, sibling pages and their interconnections, and those pages satisfying key-word retrieval requests).
Starting Page	181
Ending Page	189
Page Count	9
File Format	PDF
ISSN	00978930
DOI	10.1145/965161.806805
Journal	ACM SIGGRAPH Computer Graphics (COMG)
Volume Number	15
Issue Number	3
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	1988-08-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Computer aided instruction Computer graphics Raster graphics Maintenance and repair Interactive graphics
Content Type	Text
Resource Type	Article
Subject	Computer Science Computer Graphics and Computer-Aided Design

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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