MEN ARE FROM MARS, WOMEN ARE FROM VENUS, WEB SERVICES ARE FROM BETELGEUSE

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MEN ARE FROM MARS, WOMEN ARE FROM VENUS, WEB
SERVICES ARE FROM BETELGEUSE

• Denise P. Kalm,
• Annie Shum,
• BMC Software, Inc.

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Agenda

• The Problem
• Solutions from the Past
• Web Services and SOA The Future
• Real Life Success Stories
• Challenges
• Summary

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• The Problem

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How (most) Men Women See the World

Source Deborah Tannen
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(No Transcript)
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How Do You Make This Work?

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The wish list

• To link to any organization, anywhere in the
  world but with standard connection interfaces to
  the network
• To communicate with all business partners with
  just one set of protocols, documents and business
  processes
• To communicate responsively, reliably, securely,
  and without concern for scalability 24x7
• To use the same technology to communicate within
  the organization as is used externally
• To loosely couple organizations so that they
  dont need to know the internals of one anothers
  business processes or technologies
• To be able to reuse data and services/processes
  to reduce cost
• To be able to change services components or
  swap out one for another without breaking
  anything
• Last But Not least To make money by providing
  data and services to others over the network.

Doug Kaye, IT Strategy, 2003
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• Solutions From the Past

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History Flashback

• 83 EDI complex, requires private networks
  
• RPC developed for interoperability
• 84-00 COM, DCOM, CORBA/IIOP, Java RMI,
  ORB vie for industry seal of approval
• All fell short of boundary-less interoperability
  platform and language specific, typically
  tightly coupled and fine grained

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New Beginnings

• 91 CERN created HTML (from GML) next up ?
  XML
• 98 MS put XML-tagged RPCs into documents,
  using http (SOAP)
• 00 IBM, MS others defined WSDL and UDDI
  standards
• the standards based underpinnings of Web Services
• XML
• SOAP
• WSDL
• UDDI

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Distributed Computing At a Glance
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WS
WS
WS Hub
WS
WS
WS
WS
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• Web Services and SOA
• The Future

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Web Services Executive Summary

• Web Services is an emerging technology driven by
  the will to securely expose business logic beyond
  the firewall.
• Through Web services companies can encapsulate
  existing business processes, publish them as
  services, search for and subscribe to other
  services, and exchange information throughout and
  beyond the enterprise.
• Web services will enable application-to-applicatio
  n e-marketplace interaction, reducing the
  inefficiencies of human intervention.

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Web Services Key Benefits

• Software as a Service
• Dynamic Business Interoperability
• Accessibility
• Efficiencies
• Universally Agreed Specifications
• New Market Opportunities
• Legacy Integration
• exposing mainframe functionality as ready-to-use
  enterprise Web services

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A new generation of Legacy applications

• In today's world of modern computing, there are
  more transactions processed by IBM CICS and IMS
  than by the Internet in its entirety.
• Enterprise organizations leverage CICS and IMS
  to process more than 80 billion transactions or
  3.5 trillion worth of business every day

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The 3 basic conceptual roles operations of
SOA Service Oriented Architecture
Discovery Agency
Service Broker
Publish/ Register
Find
Loosely Coupled
Service Description
Service Consumer
Service Provider
Bind/Interact
Service
Client
application software topology in loosely-coupled
one-to-one relationships
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The SOA conceptual architecture of Web Services
with XML, SOAP, WSDL UDDI
UDDI for Discovery
Service Broker
UDDI Inquiry Find (xyz)
UDDI Publish Save (xyz)
WSDL
WSDL for description
Service Consumer
Service Provider
XML
Service
Client
SOAP
SOAP for Messaging
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Source Computerworld
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Alien Communication

GRAY-LISH
EVIL ALIEN
ESPERANTO
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RCA Jack Web Services for Your Stereo

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The Telephone Book of Web Services

• UDDI each entry is an XML file

White Pages describe the company offering the
service
Yellow Pages Describe the categories
Card authorization scan lost/stolen cards and
authorize Credit approval calls Equifax and
verifies credit
Green Pages describe the service itself
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Web Services Goal

• To start a car, you dont need to know how an
  internal combustion engine works or even how the
  starter motor works. You only need to know how to
  use the interface that the car supplies to start
  it Turn the key
• - Anne Thomas Manes

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Web Services and SOA

• A web-services-based SOA is both a process and a
  set of protocols designed to connect disparate
  applications.

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Coupling Options
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Web services are about interoperability a
subset of integration. They will do for
application connectivitywhat TCP/IP did for
networks Andy Astor, WebMethods
Web Services
Insulation Layer
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Web Services - Inside the numbers

• According to BusinessWeek, IBM has over 1,000
  employees working on technologies related to Web
  services.
• IDC expects the total IT opportunity around Web
  services in, including hardware, software and
  services, to grow from
• Western Europe 108 million in 2002 to 7.8
  billion in 2007, a compounded annual growth rate
  (CAGR) of 135.
• North America to 21.0 billion by 2007 with an
  average annual CAGR of 94 among all segments.
• By 2004, 40 of financial services transactions
  will leverage Web services models, with 35 of
  online government services delivered as Web
  services. (Gartner)

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• The Real-Life Success Stories

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Mainframe Web Services A new generation of
legacy app

• In todays world of modern computing, there are
  more transactions processed by IBM CICS and IMS
  than by the Internet in its entirety.
• Enterprise organizations leverage CICS and IMS to
  process more than 80 billion transactions or 3.5
  trillion worth of business every day
• Quickly expose mainframe functionality as
  ready-to-use enterprise Web services
• Example Merrill Lynchs X4ML

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X4ML Merrill Lynch Example
Legacy App
NAINTER
Online App for Merrill Lynch brokers
Legacy CICS

• Name and Address Interface (NAINTER)
• z/OS CICS app for managing account information
• Key business rules/functions are embedded in the
  code
• X4ML exposes these rules processes as Web
  Services
• Provides SOAP support for NAINTER
• No need to change legacy code in NAINTER
• Developed to facilitate EAI project
• Cost saving estimate 800K actual cost 30K

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Dollar Rent A Car - Challenge

• Expose mainframe-based reservation system (Quick
  Keys) for access by other business partners
• Solutions that didnt work
• direct connection to mainframe (EDI) didnt
  work
• CORBA/IIOP cost security issues, lack of
  experience
• Java RMI didnt know Java complex
• DCOM Windows-based not all partners run
  Windows
• Socket programming long development cycle no
  potential for re-use

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Dollar Rent A Car - Solution

• Dollar

SOAP Processor
Quick Keys
Partner
Dollar
Dollar
ACMS
XML Web Services
Win 2K
VMS
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Dollar Rent A Car - Success

• Cost effective links to new partners, gaining
  millions of rate requests and thousands of new
  reservations
• Reduced dependency on for-fee referrals
• Reuse of interface (four times so far) minimal
  effort required

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Legacy Design

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Adaptor Model
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Gateway Model
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What do these disparate companies have in
common?
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• The Challenges

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Web Services Lessons Learned 1

• Wells Fargo
• "We make the technology and the business people
  sit together so they understand one another
  before we begin," he says. "That's the most
  important thing you can do. You need the business
  people to 'get' IT, and the IT people to 'get'
  business." Steve Ellis, exec VP
• The National Student Clearinghouse (NSC)
• "What surprised me the most is that there really
  haven't been technical issues -- the technology
  itself is almost trivial. Most important is to
  make sure that the business model is right --
  make clear why you should do this with a trading
  partner, and calculate your ROI ahead of time. -
  Mark Jones, VP

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Web Services Lessons Learned 2

• Things Remembered Inc., the largest personalized
  gift retailer in the U.S ( about 760 retail
  stores)
• The key to developing a Web services application
  is to make whatever you build reusable, so that
  you can plug it in for other purposes. We built
  ours with that mind-set, and it's paying off." -
  Mark Fodor, director of e-business

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The major missing pieces

• Business Semantics
• Security/Identity
• Transactional Integrity
• Reliable Asynchronous Message Handling
• Orchestration Choreography
• Single Sign On
• OoS
• Contracts and Negotiations
• Billing Accounting Services Metering
  Chargeback
• Standardization of Business Models
• Intermediaries and Transformation Services
• Operational Infrastructure

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Mind the SOAP Overhead
The reality another layer on top of the
infrastructure that already exists. Particularly
true in the Java environment, where there are so
many layer mappings - from UML, to relational,
from XML to objects and back again, and XML to
code.
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Strategic Tips for service design

• Design services to be shared
• Services have a clear purpose
• Services are discoverable and support
  introspection.
• Services plug into a SOA.
• Services can be loosely orchestrated and use
  other services whenever possible for common
  tasks.
• A service has a well-defined use policy/contract.
  
• Services accept well-defined input and deliver
  well-defined output.
• Services do not have hidden side effects (play
  well with others).
• Services are interfaces to or from processes.
• Services must provide visibility and an SLA.

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Major roadblocks to full-scale Adoption

• First roadblocks
• Identity/Security
• Web services management
• Next roadblocks
• Transactions/Rollback
• Registry solutions
• Web Services orchestration and workflow solutions
  
• SLAs, QoS, QoB, Contracts, Metering/Chargeback
• For large scale B2B and collaborative commerce
• Web Services standards and infrastructure must be
  supplemented with trading agreements and
  non-repudiation

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SOM Service Oriented Management

• New management challenges for Web Services based
  SOA
• A catalyst for a paradigm change from tightly
  coupled to loosely coupled app
• From Point-to-point integration All tiers are
  well known and defined in advance
• To Services can be dynamically discovered and
  different for each transaction
• SOM for Web Services solutions
• Bridge the gap between the underlying systems and
  the Services that run on top of them

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Just the Tip of the Iceberg
Two things are clear - first Web Services are
far from mature by any measure, and second we
have a long way to run before we reach anything
like maturity. David Sprott, May 2003
Management
Security

• Todays View Falls Short of Whats Required for
  Mission-Critical Business

Business Process Modeling
Data Transformation
Transactional Integrity
Orchestration/Workflow
Source WebMethods
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Industry Co-opetition(Hope for the Future?)

• Microsoft and IBM joined forces on Web Services
• Jointly developed specifications were
  demonstrated (9/17/03) with an EDI-like
  application. The 2 companies linked
• a manufacturer (using Linux),
• a car dealer (using Websphere)
• and a 3rd party supplied (using Linux-based
  wireless).
• Complex, secure transactions between multiple
  business partners
• Co-opetition combination of cooperation and
  competition

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• Behind the scenes was a high-tech cocktail of
  IBM's DB2 and WebSphere and Microsoft's SQL
  Server and .Net.
• The auto dealer was notified upon logging on of a
  windshield wiper shortage. The crowd followed as
  the dealer proceeded to place an order with the
  supplier, who in turn placed an order with the
  manufacturer.
• The underpinnings of the demonstration were
  actual Web services applications, developed with
  specs such as WS-Coordination (Web Services
  Coordination) and WS-AtomicTransactions,
  WS-Federation and WS-Reliable Messaging

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• Bill Gates left no room for doubt
• "Web services are important to the foundation
  of the Internet, enabling e-commerce to become a
  reality."
• Steve Mills, IBM Software Groups senior vice
  president and general manager
• We're not declaring victory, but were showing
  people the goal line.

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Web Services An Unstoppable Force

THE GLASS HOUSE
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Questions?

• Denise P. Kalm
• Denise_Kalm_at_bmc.com
• Annie Shum
• Annie_Shum_at_bmc.com