1. Event Driven Architecture
André Hoekzema
Enterprise Technology Architect
Microsoft Nederland

2. Agenda Introduction Standardize on Event Based Interaction
Use Event Processing Effectively
Patterns of Response

3. Introduction

4. Aspirations in the Global Event Cloud
Situational Awareness
Sense & Respond
Track & Trace

5. Digital Archeology Customer Employee Product Sales SAP Finance Outlook
Passwd change
new auto pay
account login
deposit
activity history
withdrawal
logout
account balance
transfer
enquiry
change
Passwd /
.NET
Linux
J2EE
Unix
OS/390 MQ
DB2
Finance
People Soft
SAP
Siebel
Dir
Outlook
Customer
Employee
Product
Sales
CBDI

6. EDA Characteristics Respond Sense Analyze
Update expectations; Invoke distributed services in real-time
Detect events across extended environment in real-time
Analyze
Aggregate events across multiple sources; compare reality with expectations

7. Standardise on Event-Based Interaction
Sense

8. Some Definitions
Business Event: An event relevant to a commercial enterprise
Bank Depostit
Stock Trade
Customer Order
Password Change
Shipment Delivery
Event object (sometimes also just called “event”): A report or record of an event happening
XML document describing the bank deposit
Shipping notification in
Row in a database table

9. What Makes EDA Different from Most Conventional Business Applications?
Event-driven Architecture (Gartner)
Events are pushed not pulled (recipient need not poll repeatedly)
Recipients act immediately upon event arrival, not when a request is made or on a pre-planned schedule (runs sooner)
Event source does not specify what action the recipient will perform – the recipient determines the operation (less coupling)

10. Observer pattern
One-to-many dependency - when one object changes state, all dependents are notified and updated

11. Event-Based Interaction
Producers
Event Based
Interaction
Consumers (Sink)
Notification Service
Notification
Publish
Subscribe
Communications
Service Oriented
Notification Service Decouples Producer and Consumer with Publish Subscribe Functionality

12. Service Oriented Communication
Two fundamental aspects of a service-oriented (SO) world are:
A common protocol for communication between SO applications
A common foundation for creating SO applications
Application Y
Application X
Windows Communication Foundation

13. Service Oriented Infrastructure
SOAP is not enough:
Must connect with existing applications that don’t speak SOAP
Need to translate among different data formats
No agreement on a queued messaging protocol
SOAP
Notification
Service
Application Y
Application X
Messages

14. Standards Emerging WS-Notification WS-Base Notification WS-Brokered
WS-Topics
approved OASIS standard as of October 2006
WS-EventNotification (new)
W3C Submission in
March 2006
WS-Eventing
WS-Resource Transfer (new)

15. Event Passing Benefit is experienced mostly in the IT department
The absence of control coupling
Easy to add new sinks, move a sink, or eliminate a sink
Publish
Subscribe
Sink++
Source++
Sink
Event
Source

16. Notification Technologies
WS Protocol Based
WCF + Customer Finance Framework (CFF),
WCF + Robotics Studio
Rules Based
BizTalk Rules Engine,
SQL Server Notification Service,
SQL Server Service Broker
Notification Protocols
Notification Rules
Publish
Subscribe
Sink++
Source++
Sink
Event
Source

17. Summary Event-Driven Interaction
Events are pushed,
Immediate response by Consumer,
Reaction unknown by Sender.
“Extreme” Decoupling with
Notification Service
Rules Based: BTS Rules Engine, SQL Service Broker, SQL Notification Service
Protocol Based: not yet oo the box, WCF + CFF, WCF + Robotic Studio
Protocol
Ws-Eventing, WS-Notification, (WS-EventNotification)
Communications
Re-use of Service Oriented Infrastructure
Microsoft Platform: WCF, BizTalk Server, W2K3
Benefits
Flexibility and Maintainability
Systems that possibly align with global event cloud

18. Use Event Processing Effectively
Analyse

19. Types of Event Processing
Simple Event Processing
Event Stream Processing
Complex Event Processing

20. Event Stream Processing (ESP)
Multiple ordered events in one or a few event streams. Typically high-volume and low-latency
Stock quotes, click streams, RFID
Service Oriented Communication
ESP System
Event Processing Agent (EPA)
Fast filtering, calculate aggregates (sum, average), Boolean
Response
(ERP,
BAM,
BPM, ..)
Event
Event Streams

21. Event Stream Processing RFID Inventory Management
Inventory < $4K
> $1,500

22. RFID Support in BizTalk Server R2
Device Layer
Physical Layer
Business Applications
RFID Event Processes
Business Intelligence
SQL / SQL BI for data analytics R2

23. BizTalk RFID Server Event Processing Agent
Biztalk Server or
Business Application
Business Applications
BizTalk RFID API & Web Services
RFID Event Processes
Custom Event Handlers
Rules Engine Event Handlers
SQL Server Event Sink
RFID Sink Database
Event Processing Agent
Device Service Provider Interface (DSPI)
Device Providers
Device Layer
RFID Devices
Physical Layer

24. A Distributed Notification Architecture
Local Broker (middleware)
Border Broker
Inner
Broker
Border Network
Filter-based or Flooding
Producer
Consumer

25. iGPS : Transforming the Retail Pallet Pooling Industry
Retail Regional DC
Retail Supplier
Retail Store
Pallet Manufacturer
XAM RFID Portal
Retailer RFID Portal
Retail Pallet Depot
Pallet Pool for Major Retailers
RFID Tags Embedded
End-to-End Solution
Microsoft.com/rfid

26. Deployments TBH M Allen D Ray
RFID Readers
RFID Reader
Mobile
External WMS, ERP
Central Server
Edge Server
Customer ERP
Web Services
WCF
Deployments
TBH
M Allen
D Ray
Deployments
4/ Central & 2 Sites
6/ Sites
9/ Sites
12/ Sites
Q > 50 Sites
-Central Server
Edge Server (Mfg)
Edge Server (Depot)
Q3 2007: >2,000,000 transactions/month
Q2 2008: >10,000,000 transactions/month

27. Complex Event Processing
Use Complex-event Processing (CEP) for operational business intelligence (BI)
CEP is a sophisticated form of EDA that deals with multiple events at a time
CEP systems find patterns in business event data
CEP Leverages platform capabilities

28. Complex Event Processing
Cloud may contain many Event Types, Streams, Channels
The events may be unrelated
CEP System issues pattern detection using
Rules and Algorithms
Complex-event Objects
Response
(BAM,
BPM)
Event
CEP System
Service Oriented Communication
CEP System
Event Processing Agent (EPA)
Event Cloud

29. Complex Event Processing B2B Scenario
Suspicious or
multiple txns
Multiple txns on same credit card within 10 min at locations over 20 miles apart?
Suspicious purchase? (Notify cardholder)

30. Patterns for Complex Event Processing
Filtering
Correlations (Joins)
Aggregation over Windows
Hierarchal Events
Event Pattern Matching
In-memory Caching
Database Lookups
Dynamic Queries
State Machines

32. Summary Use Event Processing Effectively
Basic Types
Simple Event Processing,
Event Stream Processing
Complex Event Processing
Event Processing Capabilities
Patterns for Event Processing leverage full Platform Capabilities: SOA/BPM, Data/BI, Scalability
Technologies
BizTalk Server 2006/R2 + RFID Edge Server
SQL Server 2005, .NET Framework
Benefits
Earlier and Improved Businss Insight

33. Patterns of Response
Respond

34. Sample Applications That Use CEP with Business Events
Algorithmic trading — Finance, energy
Compliance reporting and monitoring — RegNMS, others
Customer experience management — Call center and Web clicks
Financial controls — "Track and trace," surveillance
Fraud detection — Anti-money-laundering, credit cards, telco
Hospital monitoring — Emergency room management
Military — Intelligence, battlefield operations, satellite
Pharmaceutical — Supply chain management, pedigree tracking
Security — Intrusion detection, denial of service
Sensor networks — RFID, GPS and others
Transportation operations — Trucks, airlines, ships or trains
"Triple play" telco — Telephone, television and Internet

35. Patterns of Response Invoke Service (Orchestration)
Update BAM Dashboard
Initiate Human Workflow
Web 2.0 Subscriptions
BAM
Web 2.0
Notification
Service
Application Y
Application X

36. BAM as Key Enabler for CEP
Predlog
pripravljen
Predlagano
gradivo
Obravnava
gradiva
Služba Vlade
za zakonodjo
Drug organ DU
Mnenje
Službe
Vlade
Obravnava na
DT Vlade
Delovna telesa
Priprava
predloga
Predlagatelj DO
Mnenje DO
zaključena
Mnenje DT
seji Vlade
mnenje pozitivno
Vlada
Dopoljnjevanje
Gradivo
dopoljnjeno
Dopoljnjeno
mnenja
negativno mnenje
Besedilo
predloga zakona
za prvo obravnavo
Matično delovno
telo DZ
Prva obravnava
pripravljeno
Sekretariat za
zakonodajo
Pripombe
pozitivno mnenje
sekreteriata
Zapisnik
seje
Sklepi in
stališča
Državni zbor
Zakon ni
sprejet
Predlagatelj
Priprava predloga za
drugo obravnavo
Priprava dopolnitve
zakon se ne sprejme
Druga obravnava
potrebni večji popravki
potrebni manjši popravki
Amandmaji
Poslanci
Drugo zainter. DT
amandmajev
vloženi
Dopolnitev
pripravljena
Besedilo predloga
za drugo obravnavo
besedilo
zakona za drugo
obravnavo
za tretjo obravnavo
število sprejetih
Stališča in sklepi DZ
Sprejeti amandmaji
tretjo obravnavo
veliko
majhno
Tretja obravnava
Mnenje MDT DZ
izglasovan
Zapisnik seje
Zakon je
Sprejet
zakon
Letni program
ali
zahtevek Vlade
Predlog za
Event
Activity
Event Driven Process Design
BAM Dash Board

37. Summary Patterns of Response
Once you have gained business insight ..
Where to Start
Event Driven Process Design + BAM as enabler for CEP
Benefits
Ability to act
on earlier and Improved Businss Insight

38. Platform Architecture
User Experience
Composite Apps
Office App
Devices
Web
Portal
Collaboration
Composition Layer
Data Aggregation
Workflow Orchestration
Eventing
Service Agents
Business Rules
Data Platform
Data Management
Data Integration
Core Infrastructure
Application Server
Applications
ERP
SCM
CICS
CRM
Business Intelligence
Development and Tooling
Identity & Access
Management

39. Microsoft Platform Stack
User Experience
Composite Apps
Office App
Devices
Web
Portal
Collaboration
Composition Layer
Data Aggregation
Workflow Orchestration
Eventing
Service Agents
Business Rules
Data Platform
Data Management
Data Integration
Core Infrastructure
Application Server
Applications
ERP
SCM
CICS
CRM
Business Intelligence
Development and Tooling
Identity & Access
Management
Office Business Applications (OBA)

40. Conlusion
Event Driven Architecture for Flexible and Maintainable Systems
Event Processing for improved Business Insight
Leverage full Platform Capabilities to support Event Driven Architecture
Resources: Roy Schulte (Gartner), Brenda Michelson (EventLinks), David Luckham (Power of Events), Nico Copier (Microsoft), Eric van Bever (Microsoft), Richard Evdemon (Microsoft), Shy Cohen (Microsoft), Jack van Hoof (Dutch Railways), CBDI-Forum

41. Discussion, Questions & Issues

42. © 2007 Microsoft Corporation. All rights reserved.
This presentation is for informational purposes only. Microsoft makes no warranties, express or implied, in this summary.