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2002
Papers:
(listed in reverse chronological
order for 2002)
ESD-WP-2002-08:
Global Comparison Aggregation Services
by
Hongwei Zhu, Stuart
E. Madnick and Michael D. Siegel
Web
aggregation has been available regionally
for several years, but this service has
not been offered globally. As an example,
using multiple regional comparison aggregators,
we analyze the global prices for a Sony
camcorder, which differ by more than three
times. We further explain that lack of global
comparison aggregation services partially
contribute to such huge price dispersion.
We also discuss difficulties encountered
in the manual integration of global web
sources. Motivated by this example, we propose
a context mediation architecture for global
aggregation to address semantic disparities
of global information sources. Global aggregation
services can bring efficiency to the global
market and can be useful for market research
and other business uses.
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ESD-WP-2002-07:
The Interplay of Web Aggregation and Regulation
by
Hongwei Zhu, Stuart
E. Madnick and Michael D. Siegel
The
development of web technology has led to
the emergence of web aggregation, a service
that collects existing web data and turns
them into more useful information. We review
the development of both comparison and relationship
aggregation and discuss their impacts on
various stakeholders.
The
aggregator's capability of transparently
extracting web data has raised challenging
issues in database and privacy protection.
Consequently, new regulations are introduced
or being proposed. We analyze the interactions
between aggregation and related policies
and provide our insights about the implications
of new policies on the development of web
aggregation.
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ESD-WP-2002-06:
Evaluating Accident Models Using Recent
Aerospace Accidents, Part 1: Event-Based
Models
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ESD-WP-2002-05:
ESD Internal Conference Extended Abstracts
by
The ESD Colloquium Committee
This
working paper contains the extended abstracts
received to date for the ESD Colloquium
to be held on May 29 and 30, 2002. A proceeding
of the complete papers are planned to be
published in advance of the colloquium.
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ESD-WP-2002-04:
Do-It-Right-Fisrt-Time (DRFT) Approach to
DSF Restructuring
by
Ali A. Yassine, Daniel
E. Whitney, Jerry Lavine, and Tony Zambito
In
this paper, we argue, using two real-world
applications from the automotive industry,
that the biggest benefit of a Design Structure
Matrix (DSM) model may come not from resequencing
and partitioning, but rather from “rewiring”
the process/blocks. By “rewiring”
we mean redefining relationships among elements
and/or inserting new elements into the matrix.
This requires intimate understanding of
the process and cannot be done with application
of context-free partitioning algorithms.
The
Do-it-Right-First-Time (DRFT) approach to
DSM restructuring is another way to look
at a DSM by inspecting the sources of iteration
within a block and reversing it through
inserting a DRFT activity at the beginning
of the block. In other words, we reverse
the traditional Design-Build-Test “Cycle”
into a DRFT-Design-Build “Sequence”.
That is, the "wiring diagram"
of a process or system overpowers the behavior
of the individual nodes, so changing the
system requires changing the wiring.
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ESD-WP-2002-03:
Designing a Requirement Driven Product Development
Process
This
paper presents a technique to obtain a Design
Structure Matrix (DSM) from a Design Matrix
(DM). This technique enables us to obtain
the design information flow pattern at early
stage of the design, and apply the DSM system
analysis and management techniques at the
time when the most important decisions about
the system and the design are made. The
validity of this method is proven using
a case study on the design integration process
of an electrostatic chuck used in semiconductor
wafer processing. The algorithm underlying
this technique is also proven logically
and mathematically to be valid.
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ESD-WP-2002-02:
Improving the Software Upgrade Value Stream
by
Brian Ippolito and Earll Murman
This
paper reports findings from a two-year study
to identify Lean practices for deriving
software requirements from aerospace system
level requirements, with a goal towards
improving the software upgrade value stream.
The study was undertaken as part of the
MIT Lean Aerospace Initiative. Three detailed
case studies and 128 surveys collected from
ten ÒsuccessfulÓ mission critical aerospace
software upgrade programs support seven
major findings.
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ESD-WP-2002-01:
ESD Terms and Definitions (Version 12)
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