Last updated 07.05.2004
PEssimistic, STrict, and Optimistic
The PESTO project resulted in a M.Sc. thesis with the title:
''A Mobility-Transparent Model for Consistency''
Not all those who wander are lost;
-- J.R.R.Tolkien (Lord of the Rings)
This M.Sc. project is part of the
and aims at developing a distributed files system (file server and
C runtime library) to investigate a new model for consistency as well as transactions
Existing distributed file systems employs different strategies for maintaining
consistency between replicad files: either pessimistic, strict or
optimistic replica control. In this report I will investigate a proposed
in Mobile Computing), model for consistency for
mobile-computing that caters for use of and transisition between all
The thesis was completed on December 2., 1996. It is available for download
as DIKU report no. 96-3-7 in gzip'ed postscript format
diku96-3-7.ps.gz with figures from Chapter 5 and flow diagrams from appendices
C and D available in tar'ed and gzip'ed Word 6.0 format
Now available in
- and -
The master defence took place at DIKU on January 6, 1997.
An article, available on-line A Model for Multi-Level Consistency, in gzip'ed postscript format o12.ps.gz or in PDF-format: artikel.pdf, describing the basic model was presented at the OOPSLA'96: Workshop on Object Replication and Mobile Computing (ORMC'96).
The article was part of the Advanced Internet Protocol Collected Course Readings at Copenhagen Business School (AIP'97 - Collected Course Readings or AIP'99 - Tentative Literature for Advanced Internet Protocols).
The article and the master thesis are in Aline BAGGIO's Bibliography on Mobile Computing and referenced in her PhD thesis "Adaptable and Mobile-Aware Distributed Objects" - part of the The Cadmium Project.
Michael Garfield Sørensen
If you think, this looks a lot like
TACO, Transparent Communication
then I can assure you, that it is no coincidence.
And special thanks go to
Thank You, Guys!
Official PeStO Homepage (hasn't been updated recently)