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Dave Chappell
David Chappell is vice president and chief technologist for SOA at Oracle Corporation. Chappell has over 20 years of experience in the software industry covering a broad range of roles including Architecture, code-slinging, sales, support and marketing. He is well known worldwide for his writings and public lectures on the subjects of Service Oriented Architecture (SOA), the enterprise service bus (ESB), message oriented middleware (MOM), enterprise integration, and is a co-author of many advanced Web Services standards. Chappell is a regular contributor to SOAWorld Magazine and a speaker at the "SOA World Conference & Expo" since 1999. |
SOA and eXtreme
Transaction Processing
(XTP) By Dave Chappell  Financial institutions
are pushing the envelope
and require more
processing capability,
but without requiring
exponential increase in
hardware costs. The
growth of extreme
transaction processing
(XTP) in areas such as
fraud detection, risk
computation, and stock
... Feb. 26, 2008 06:00 AM Reads: 4,566 | Universal Middleware:
What's Happening With
OSGi and Why You Should
Care By Dave Chappell; Khanderao Kand  The Open Services Gateway
Initiative (OSGi)
Alliance is working to
realize the vision of a
'universal middleware'
that will address issues
such as application
packaging, versioning,
deployment, publication,
and discovery. In this
article we'll examine the
need for... Feb. 5, 2008 04:00 PM Reads: 22,409 Replies: 2 | The Enterprise Service
Bus (ESB) Delivering SOAs By Dave Chappell As SOA becomes the
prevailing model for
enterprise
infrastructures, unique
architectural challenges
need to be mastered in
order to fully enjoy the
capabilities SOA
provides. SOA
infrastructure must
support operational
flexibility, a
heterogeneous application
... Feb. 27, 2006 08:45 AM Reads: 11,095 | ESB Myth Busters: 10
Enterprise Service Bus
Myths Debunked By Dave Chappell  Since releasing my latest
book, Enterprise Service
Bus (O'Reilly Media,
2004), I have been doing
a fair amount of visiting
corporations, conducting
seminars, and generally
discussing with
enterprise architects the
subject of enterprise
service-oriented
architectur... May. 25, 2005 07:30 PM Reads: 81,506 Replies: 5 | ESB Integration Patterns By Dave Chappell The past several years
have seen some
significant technology
trends, such as
service-oriented
architecture (SOA),
enterprise application
integration (EAI),
business-to-business
(B2B), and Web services.
These technologies have
attempted to address the
challenges ... Aug. 31, 2004 12:00 AM Reads: 33,537 | Service-Oriented
Integration: Making the
Right Choices to Support
Next-Generation
Integration By Dave Chappell This session examines the
three leading choices for
supporting
service-oriented
integration: enterprise
service buses (ESBs),
integration brokers, and
application suite
platforms. Making the
right architectural
decisions, Dave Chappell
shows, is absolutely
vital... Feb. 25, 2004 12:00 AM Reads: 14,081 | WS-ReliableMessaging
Interop Summit - Publicly
Available Meeting Notes By Dave Chappell I recently attended the
WS-ReliableMessaging
Interop fest, hosted by
IBM. IBM has published
the results. The
publishing of the results
is something that the
legal agreement allows
the spec authors to do. A
public version of the
legal agreement and the
test scena... Nov. 10, 2003 10:16 AM Reads: 8,911 Replies: 1 | Reconstructing J2EE-Java
Business Integration
Meets the Enterprise
Service Bus By Dave Chappell Web services have given
newfound importance to
service-oriented
architectures and promise
to drive down the cost of
integration by providing
a standards-based
approach to
interoperability between
applications. The trouble
is, what people really
want is a new way o... May. 23, 2003 12:00 AM Reads: 16,321 | Message-Centric Web
Services vs RPC-Style Web
Services By Dave Chappell Message-centric vs
RPC-style Web services is
a long-standing debate
and bone of contention
regarding the proper use
of Web services
technologies. Early
renditions of SOAP and
XML-RPC were all about
providing RPC-style
interactions...in fact,
that's all that was
... Mar. 27, 2003 12:00 AM Reads: 13,020 | The New Integration
Architect: You By Dave Chappell According to Gartner,
Inc., vice president and
research fellow Roy
Schulte, 'a new form of
enterprise service bus
(ESB) infrastructure will
be running in most major
enterprises by 2005.'
ESBs combine Web
services, enterprise
messaging,
transformation, and
routin... Dec. 16, 2002 12:00 AM Reads: 12,501 Replies: 3 | Asynchronous Web Services By Dave Chappell In a recent 'Strategic
Planning' research note,
Gartner issued a
prediction that 'by 2004,
more than 25 percent of
all standard Web services
traffic will be
asynchronous....' and 'by
2006, more than 40
percent of the standard
Web services traffic will
be asynchronous.' Apr. 5, 2002 12:00 AM Reads: 10,548 | JAXM: Interoperable SOAP
Communications for the
Java Platform By Dave Chappell The Java API for XML
Messaging (JAXM) is a new
Java application
programming interface
(API) that provides a
standard way for Java
applications to send and
receive Simple Object
Access Protocol (SOAP)
messages. The basic idea
is to allow developers to
spend more... Nov. 30, 2001 12:00 AM Reads: 12,323 | Beyond The JMS
Specification By Dave Chappell; Bill Cullen The Java Message Service
(JMS) is a specification
put forth by Sun to
define a common set of
APIs and common semantics
for messaging-oriented
middleware providers. An
increasing number of MOM
vendors have embraced
this specification, and
new vendors are building
m... May. 1, 2001 12:00 AM Reads: 13,938 | Distributed Logging Using
The JMS By Dave Chappell; Greg Pavlik Every software system has
logging requirements so
application processing
can be monitored and
tracked. Modern
distributed systems,
which are usually based
on application
frameworks, require a
logging solution that can
cope with multiple
processes on multiple
hos... May. 1, 2001 12:00 AM Reads: 16,016 | Guaranteed Messaging With
JMS By Dave Chappell; Richard Monson-Haefel The notion of guaranteed
delivery of Java Message
Service messages has been
lightly touched on in
other recently published
articles on JMS. But what
really makes a JMS
message 'guaranteed'?
Should you just take it
on faith, or would you
like to know what's
behind it? Apr. 1, 2001 12:00 AM Reads: 21,418 Replies: 1 | A Real-World Example By Dave Chappell; Neil Powers Last month 'The
JavaMessage Service and
XSLT for E-Business
Messaging' (XML-J, Vol.
2, issue 2) explored the
concept of using JMS as
the basis of a
communications
architecture for
transporting XML data
between applications and
an XSLT translation
engine for tran... Mar. 7, 2001 12:00 AM Reads: 13,972 | Benchmarking JMS-Based
E-Business Messaging
Providers By Dave Chappell; Bill Wood Benchmarking any
distributed computing
middleware product is a
complex task. Knowing how
well a distributed
infrastructure will
perform under heavy load
with a large number of
concurrently connected
users is a key factor in
planning a development
and deployment strategy. Mar. 1, 2001 12:00 AM Reads: 18,878 | The Java Message Service By Dave Chappell The Java Message Service
(JMS) is an
enterprise-capable
middleware component
based on message-oriented
middleware (MOM)
fundamentals. Since its
introduction as a Java
software specification in
November 1998, vendor
implementations have
brought JMS forward as a
f... Mar. 1, 2001 12:00 AM Reads: 16,445 | JMS and XSLT for
E-Business Messaging By Dave Chappell XML is the new lingua
franca of
interapplication
communication and a very
rich language for
describing complex
business data in a
heterogeneous way.
Today's business
environment requires
building new systems that
exchange XML transactions
between a diverse set o... Feb. 4, 2001 12:00 AM Reads: 13,385 Replies: 2 | Reliable SOAP for Web
Services Messaging Has
Finally Arrived!
Leading IT Vendors Join
Forces to Create Web
Services Reliability By Dave Chappell (January 14, 2003) - On
Thursday January 9, Sonic
Software and a number of
other leading IT vendors,
including Fujitsu
Limited, Hitachi, Ltd.,
NEC Corp, Oracle Corp.,
and Sun Microsystems,
announced a proposal for
a new Web services
specification for
reliable mess... Jan. 1, 2000 12:00 AM Reads: 13,170 Replies: 3 | Will the Real Reliable
Messaging Please Stand
Up? Is it WS-Reliability,
WS-ReliableMessaging, or
WS-ReliableConundrum? By Dave Chappell Open standards for
reliable Web services
messaging, such as
WS-Reliability, can
provide the missing link
to bridge the gap between
organizations and help
make Web services a truly
enterprise-capable
technology for
standards-based systems
integration, says Web
Se... Jan. 1, 2000 12:00 AM Reads: 10,215 |
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