Microsoft BizTalk Server 2000
Presented 21/01/2001
by Avner Zaitlin
21/01/2001
Internet DB Seminar
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The Problem
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Building business-to-business (B2B) ecommerce systems presents many
challenges to the system architect.
Often, each company involved stores their
data and documents in formats that are
different from the formats used by the other
participating companies. These companies
need a way to integrate what tend to be vastly
different systems.
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Product Overview
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BizTalk Server 2000 unites, in a single
product:
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Enterprise application integration.
Business-to-business integration
Advanced BizTalk Orchestration technology.
Allow developers, IT professionals, and business
analysts to easily build dynamic business
processes that span applications, platforms, and
businesses over the Internet.
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Primary benefits
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Faster time to market
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Secure reliable B2B trading
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Quickly build, manage and track distributed
business processes that integrate applications and
business partners.
Leverage and support XML & Windows 2000
security services to define and support trading
partner relationship.
Lower integration costs
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Leverage open standards and specifications in
order to integrate disparate applications within and
between organizations.
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Scenarios
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Trading partners
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Business process integration
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Enable businesses to link their multiple business processes.
Automated procurement
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Enable information interchange among trading partners.
Enable businesses to source goods and services with one-one or
one-many vendors.
Business to business portals
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Enable business to business intermediaries to automate
content aggregation and management.
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BizTalk Server agreement
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An agreement defines the rules for
exchanging data between two or more
organizations:
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Source and destination organizations
At least one document specification
Document envelopes
Security settings
Transport settings
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Agreement types
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Outbound agreement
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Inbound agreement
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Defines the rules for sending documents.
Defines the rules for accepting documents.
An open agreement
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A special type that defines a single organization.
The missing trading partner information is
provided when the document is submitted to
BizTalk.
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Document Specifications
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Document specifications define the structure
of a business document in a way that is
independent of the underlying data format.
BizTalk represents document specifications
internally with XDR (Will be replaced by XML
Schema Definition Language - XSDL).
A business document’s physical format may
be XML, UN/EDIFACT EDI, X12 EDI,
positionally delimited flat files , or commaseparated values.
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Document Specifications
(Cont.)
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Document specifications are required to
define the translation from the original
document format to the BizTalk Server 2000
intermediate XML format.
Business analysts must review schema
initiatives in their industries, perform gap
analysis between published specifications
and internal business requirements, and
negotiate details with trading partners.
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Document Specifications
Editor
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Document Specifications
Source XDR
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Document transformation
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The BizTalk Mapper transforms a document
from the internal XML representation of an
inbound document to the internal XML
representation of an outbound document.
This mapping allows BizTalk Server 2000 to
alter the schema (transformation) and data
format (translation) of business documents.
The BizTalk Mapper uses standard XSLT
technology to internally represent mapping
rules.
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Document transformation
(Cont.)
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Microsoft XSLT implementation provides
COM and scripting language integration.
BizTalk Mapper take advantage of this
integration to provide built-in reusable
components called functoids (String,
Mathematical, Logical, Date, Conversion etc).
Functoids allows the developer to define
custom script logic that will be applied to
source data values during the execution of a
map.
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BizTalk Mapper
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BizTalk Mapper Compiled
XSLT
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Pipelines
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Pipelines tie together the built-in or
custom processing steps during a data
interchange.
Certificate identification and processing
rules are defined within a pipeline.
Custom components may be inserted
into a pipeline.
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Transport Services
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BizTalk Server 2000 supports the
following transport services: HTTP,
HTTPS, SMTP, MSMQ, FTP, file, and
fax.
Documents may also be sent with a
custom COM.
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Receive functions
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Receive Functions allow applications to
submit business documents to BizTalk.
FTP, file, and message queuing are
supported receive functions.
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Receive functions (Cont.)
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The FTP receive function polls a given
location and uses FTP to send files to
BizTalk.
The file receive function is invoked by a file
system event when activity occurs in the
defined directory. The source file is copied
and submitted to BizTalk .
The message queuing receive function
provides event-based integration with MSMQ
to read messages from a queue and submit
the message body to BizTalk .
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Architecture and Tools
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The BizTalk Server uses Windows 2000
Server and Microsoft SQL Server to
implement document interchange engine.
A standard deployment may include one or
more BizTalk servers configured as a group.
Server groups share document specifications
and maps through the Windows 2000 Web
Distributed Authoring and Versioning
(WebDAV) service.
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Architecture and Tools (Cont.)
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The servers share working interchange
data by accessing a set of shared SQL
Server queues.
Four SQL Server queues are used
during the processing of a document:
scheduled queue, work queue, retry
queue, and suspended queue.
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BizTalk Server 2000
Deployment
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Document Processing
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Business data is submitted to BizTalk as text.
The server selects the appropriate parser
based on the agreement.
The parser looks up the document
specification defined in the agreement, and
uses it to create intermediate XML
representations of the submitted business
data.
If the parsing step fails, the document will be
placed in the suspended queue.
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Document Processing (Cont.)
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The server validate the structure and
grammar of the document.
The server loads the map defined in the
agreement’s pipeline configuration and
applies the transformation to the
document.
The document is serialized.
The document is transported.
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Security
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SSL support is provided through the built-in
HTTPS transport service.
Documents may also be encoded using builtin S/MIME encoding components.
The Public Key Cryptography System (PKCS)
for encrypting and decrypting document is
supported.
Digital signatures may be applied to outbound
messages and verified on inbound
messages.
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Management and Analysis
Tools
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BizTalk Management Desk
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allows the recreation and configuration of trading
partner agreements and all associated properties
(organizations, distribution lists, document
specifications, envelopes, transport protocols,
security settings, and pipelines).
Microsoft Management Console (MMC)
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Using this console, groups, queue activity, receive
functions and individual servers may be managed
remotely or locally.
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BizTalk Management Desk
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Microsoft Management
Console (MMC)
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BizTalk Orchestration (BTO)
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BizTalk Orchestration is a new technology for
creating and orchestrating business
processes that span time, organizations,
applications and people.
BTO is based on a new application of XML
called XLANG, which is a language created to
define the semantics of business processes
and to bind process activities to software
implementations.
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BizTalk Orchestration Goals
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Separation of Definition from Implementation.
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The process definition must not be tied to or
driven by implementation details and vice versa.
Dynamic Processes.
“Any to Any” Integration.
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The process must be able to communicate and
interact with any of the constituent parts of the
implementation of the process.
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BTO Overview
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BizTalk Orchestration makes a distinct
separation between the process
definition and the underlying
implementation.
It allows the process to be modified and
maintained without breaking the
underlying software implementations,
and vice versa.
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BTO Overview (Cont.)
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It allows flexibility of hardware and
software choice. The underlying
implementations can be upgraded or
changed entirely without throwing away
the work done to define the process.
It makes it easy to add new elements
and new participants to the process.
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BizTalk Orchestration form
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BizTalk Framework 2.0
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BizTalk Framework provides detailed
specifications for the construction of
BizTalk Documents and Messages, and
their secure transport over a number of
Internet-standard transport and transfer
protocols.
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Microsoft .NET Enterprise Servers
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Microsoft Application Center 2000
Microsoft BizTalk Server 2000
Microsoft Commerce Server 2000
Microsoft Exchange 2000
Microsoft Host Integration Server 2000
Microsoft Internet Security and
Acceleration Server 2000
Microsoft Mobile Information 2001 Server
Microsoft SQL Server 2000
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Case study - Marks & Spencer
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Business Challenge
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Marks & Spencer needed to ensure that
point-of-sale (POS) data from its stores
was transmitted to its data center as
quickly as possible.
Solution
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Microsoft Windows® 2000 Server in each
store, connected through a LAN to POS
terminals running a Windows client.
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Case study (Cont.)
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Solution (Cont.)
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Transactions flow from each POS terminal to the
server, where every 60 seconds they are
aggregated, converted to an XML message, and
sent to the corporate data center using the
Microsoft Message Queuing Services (MSMQ)
BizTalk Server 2000 receives the XML messages,
load balances them across all of the BizTalk
processing servers, examines their contents, and
intelligently routes the data to the appropriate
application in the correct format.
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Case study (Cont. 2)
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References
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Product site: http://www.microsoft.com/biztalk
Biztalk.org: http://www.biztalk.org/BizTalk/default.asp
Case studies:
http://www.microsoft.com/servers/net/casestudies.htm
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Microsoft Message Queue (MSMQ):
http://www.microsoft.com/msmq
XSL Transformation (XSLT):
http://www.w3.org/TR/xslt
S/MIME Specification:
http://www.ietf.org/rfc/rfc2633.txt
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