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Document Description
Title
Consistency
in
cooperative
executions
Author
Adluri
,
Vasantha
Lakshmi
,
1969-
Description
Thesis
(M.Sc.)--Memorial
University
of
Newfoundland
,
2002.
Computer
Science
Date
2002
Pagination
vi, 112 leaves
Subject
Teams
in the
workplace--Data
processing;
Mobile
agents
(Computer
software);
Computer
networks
Degree
M.Sc.
Degree Grantor
Memorial University of Newfoundland. Dept. of Computer Science
Discipline
Computer Science
Language
eng
Notes
Bibliography:
leaves
105-112
Abstract
Computer-Supported
Cooperative
Work
(CSCW)
is
the
study
of how
computers
can
be
used
to
help
people
work
together.
Cooperative
work
on
shared
,
persistent
data
requires
computing
system
support
to
coordinate
the
work
of
multiple
users
and to
ensure
data
consistency.
Attempts
to
extend
the
traditional
concepts
of
transactions
and
serializability
to
specify
consistency
of
cooperative
executions
have
largely
been
unnatural
and
unsatisfactory.
--
In this
thesis
, a
new
approach
is
presented
to
specify
consistency
of
cooperative
executions.
It
is
based
on an
intuitive
notion
of
legality
of the
read
operations.
Five
legalities
,
each
capturing
a
different
notion
of
'recentness'
of the
values
, with
respect
to a
defining
relation
are
explored.
They are
stated
formally
in
terms
of
system
executions
in
shared
read/write
variables.
A
cooperative
execution
is
consistent
in a
strong
sense
when
all
reads
obey
all
legalities.
By
relaxing
the
legality
requirements
, and also by
choosing
different
defining
relations
, a
large
variety
of
(weaker)
consistencies
can
be
specified
in a
hierarchical
manner.
--
We
also
give
detailed
algorithms
for
ensuring
the
various
legalities.
The
algorithms
correspond
to
three
different
environments
-
centralized
,
distributed
, and
mobile
agent
setups.
We
illustrate
some
examples
where
the
legalities
can
be
employed
in
various
aspects
of
cooperative
work.
--
Keywords:
Consistency
,
Legality
,
Cooperative
Executions
,
Mobile
Agents.
Type
Text
Resource Type
Electronic
thesis
or
dissertation
Format
Image/jpeg;
Application/pdf
Source
Paper copy kept in the Centre for Newfoundland Studies, Memorial University Libraries
Local Identifier
a1591072
Rights
The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission.
Collection
Electronic
Theses
and
Dissertations
Scanning Status
Completed
PDF File
(12.83
MB)
--
http://collections.mun.ca/PDFs/theses/Adluri_VasanthaLakshmi.pdf
CONTENTdm file name
42048.cpd
