strictly confidential © copyright 2003 enigmatec corporation limited making web services work...

Strictly Confidential © Copyright 2003 Enigmatec Corporation Limited

Making Web Services Work

Duncan Johnston-Watt

Chief Technology Officer, Enigmatec Corporation

W3C Web Services Choreography WG, F2F, Oracle, March 13, 2003


Within five years Process-oriented Middleware will be the dominant platform for distributed computing

Over the next three years Process-oriented Middleware will radically transform our Financial Services infrastructure

Proposition

Michael Paull


Gestalt Shift

Message-oriented Middleware Underpinned by Self-Describing Data Led to explosion in event-driven programming Pioneered in Financial Services, SCM, …

Process-oriented Middleware Underpinned by Self-Executing Logic Intelligent Infrastructure Building blocks - Java™ Technology and XML Formal foundations - -Calculus Coming soon to a Financial Services institution near you …


POM in a Nutshell

Very powerful abstraction Closer to the holy grail of “Interfacing Thought”

POM is all about what CJ Date calls “What, not how”

POM enables –

Processes to be described declaratively Conversations between processes to be scripted declaratively Process requirements to be specified declaratively Resources available to be listed declaratively


POM in a Nutshell

Facilitates the decomposition, decoupling and distribution of complex business or operational processes

Delivers what the business needs Dynamic distributed policy management

Automatically compensates for IT constraints Agility

Enables runtime process optimization Refracturing


The Challenge Change in work practices

Rapidly changing markets

Fundamental change in regulations

Fundamental change in business

Formulate processes centrally

Distribute across IT infrastructure

Modify locally without loss of control

Support long lived processes

Provide lower cost solutions


Simple Example – Dynamic, Distributed Policy ManagementChallenge

Needs to provide consistent distributed validation and calculation services to enable the roll out of a New York order management system on a global basis

Requirements Enable change to the validation and calculation rules to be immediate Enable central control and local personalisation of rules/processes Massive scalability through high degree of decoupling and distribution Low total cost of ownership

POM Supports dynamic updating of rules on the fly Supports central control with local personalisation Leverages a highly distributed architecture for process execution Light weight and lower cost solution over a distributed environment


Straight Through Processing (STP) Core business processing

Pricing and Risk Management Services Process-oriented approach Distributed analytics

Smart Routing Process-oriented approach Intelligent networking

POM & Financial Services

The bottom line is that enterprises that refuse to provide appropriate funding and management backing to enable the systematic building of their enterprise’s software infrastructure and, specifically, its Enterprise Nervous System (ENS), as part of the worldwide information grid are putting at risk their long-term viability.

Gartner Group, August 2002


POM & Financial Services


POM & Standards – Web Services Choreography?

POM is an enabling technology for distributed computing solutions

POM can be used in a Web Services play to lower the cost of integration and increase the agility of the offering

What does this mean?


Recap: The Financial Services landscape

XML

Opaque

Corba/MOM

IIOP

SvcLookUp

Classic split into Front/Middle/Back office functions

Transactional islands are glued together

Biggest problems … Integration of data Integration of processing


UDDI – Service repository used to look up services

WSDL – Interface for services Built on Internet Protocols Leverages XML

SOAP – The on-the-wire protocol

Web Services for Financial Services

WSDL

SOAP

SOAP

UDDI

WSDL


The Web Web Services Stack

Built on Internet Protocols Leverages XML

Basis for Semantic Integration

So What’s New?


Smart Financial Services

Need to handle choreography Different scenarios have different

conversations Conversations are composed of sequences,

forks, joins etc etc. Conversation are state-full

transactional contexts and theads (correlations)

Conversations have local and global behaviour

Choreography defines observable behaviour

Delivers semantic integration

WSDLWSCI

WSCIWSCI


POM Implements Smart Financial Services

POM delivering just in time integration needed for STP and T+1 between institutions and inside institutions

POM can act as an outsourcing enabler because of it’s mobility

WSDLPOM

POMPOM

strictly confidential © copyright 2003 enigmatec corporation limited making web services work...

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