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QuoteRef: akscRM5_1984
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ThesaHelp:
references a-b
Topic:
descriptive naming
Topic:
execution of hypertext nodes
Topic:
compiling pseudocode designs
Topic:
schemas for hypertext
Topic:
semi-structured text
Topic:
loosely structured data
Group:
data type
Topic:
database schema
Topic:
Thesa data model
Group:
database model
Topic:
hierarchical structures
Topic:
hierarchical structures in hypertext
Topic:
trees
Topic:
replicated data
Topic:
hypertext as a distributed system
Topic:
archiving Information in Hypertext
Topic:
managing a Thesa database
Group:
Thesa programming system
Topic:
system integration
Topic:
uniform data model
Topic:
semistructured messages for automated processing
Group:
user interface for hypertext
Topic:
mental models, consistency, and interface metaphors
Topic:
hypertext browser
Topic:
problems with disorientation in hypertext
Topic:
security by access rights
Topic:
managing changes in hypertext
Topic:
change notification
Topic:
optimistic update for concurrency control
Topic:
general vs. specific purpose systems
Topic:
a single system image
Group:
program design
Group:
testing
Reference
Akscyn, R.M., McCracken, D.L., "The ZOG approach to database management", Proceedings of the 1984 Trends and Applications Conference: Making Databases Work, May 23-24, 1984. Google
Other Reference
CMU-CS-84-128, Department of Computer Science, Carnegie-Mellon University, Pittsburgh, Pennsylvania (March 1984).
Notes
notes from tech. report
5 ;;Quote: used ZOG for software management; statement titles are pseudo-code comments for begin-end blocks in Pascal
8 ;;Quote: ZOG inserts schematic structures of frames which can then be filled in
9 ;;Quote: schemas (a structure of frames) more flexible than types for databases
9 ;;Quote: databases have either well-defined record structures, or unstructured text files
10 ;;Quote: with hierarchical organization; users want to operate on subtrees
10 ;;Quote: build a subtree for processing as a unit; semantically richer than query qualification
11 ;;Quote: ZOG provides for read-only, automatically updated, secondaries stored on remote machines
11 ;;Quote: the 'old' button in ZOG saves a copy of the current frame on a stack attached to the frame
11+ ;;Quote: ZOG users follow informal rules for when to save an old copy of the frame
12 ;;Quote: ZOG integrates a system by imposing a single, uniform data model: frames
12+ ;;Quote: ZOG integrates programs with frames; the global consistency helps novices
12+ ;;Quote: ZOG programs invoked from frames, with parameters, input and output from frames
12 ;;Quote: by browsing, a users acquires a mental model of the structure and contents of ZOG
13 ;;Quote: with 300 thousand ZOG sessions, disorientation isn't a problem; due to re-orientation commands
14 ;;Quote: an owner of a ZOG frame can add other owners, read-protect it, or write-protect it
14 ;;Quote: users must be able to find all changes made by others to a Hypertext
14 ;;Quote: ZOG 'find' command creates lists of all frames changed since a given date
16 ;;Quote: in very large databases, locking is not necessary since conflicts are rare
17 ;;Quote: generalize a system only as necessary; it should have a medium level of generality
17 ;;Quote: emphasize integration of tools and users
17 ;;Quote: in designing a system, allow some unreliability to occur; perfection is too expensive
ThesaHelp: references a-b (396 items)
Topic: descriptive naming (29 items)
Topic: execution of hypertext nodes (21 items)
Topic: compiling pseudocode designs (8 items)
Topic: schemas for hypertext (7 items)
Topic: semi-structured text (16 items)
Topic: loosely structured data (20 items)
Group: data type (34 topics, 723 quotes)
Topic: database schema (29 items)
Topic: Thesa data model (58 items)
Group: database model (15 topics, 314 quotes)
Topic: hierarchical structures (43 items)
Topic: hierarchical structures in hypertext (19 items)
Topic: trees (21 items)
Topic: replicated data (45 items)
Topic: hypertext as a distributed system (4 items)
Topic: archiving Information in Hypertext (6 items)
Topic: managing a Thesa database (34 items)
Group: Thesa programming system (11 topics, 561 quotes)
Topic: system integration (5 items)
Topic: uniform data model (19 items)
Topic: semistructured messages for automated processing (22 items)
Group: user interface for hypertext (5 topics, 109 quotes)
Topic: mental models, consistency, and interface metaphors (49 items)
Topic: hypertext browser (23 items)
Topic: problems with disorientation in hypertext (18 items)
Topic: security by access rights (36 items)
Topic: managing changes in hypertext (21 items)
Topic: change notification (19 items)
Topic: optimistic update for concurrency control (35 items)
Topic: general vs. specific purpose systems (11 items)
Topic: a single system image (30 items)
Group: program design (13 topics, 453 quotes)
Group: testing (18 topics, 551 quotes)