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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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