The document discusses event-driven architecture (EDA) and its advantages, such as reduced complexity, higher agility, and better resource management in a connected world of users, mobile applications, and IoT devices. It illustrates the evolution of APIs, cloud services, and big data, emphasizing the need for effective API management and integration strategies to foster innovation and efficiency. The author envisions a future where a publish/subscribe model dominates cloud interactions, facilitating real-time information sharing across various platforms.

1. Event Driven
Reference Architecture
John
Mathon
VP, Enterprise Evangelism
and Product Strategy
WSO2
Inc.

2. “How do you share information between
users and applications in a networked
world?”
Platform 1 Platform 2 and 3

3. Publish/Subscribe Dream
Joe Mary FrankExchange Clearing
Event Driven Computing was born
Subject
Filter
Subject Filter Subject Filter Subject Filter Subject Filter
Real-Time Simultaneous Delivery to all Subscribers
Auto-Discovery and Inclusion
Self-Describing Data

4. What Point-to-Point looks like after a while
Extremely Brittle
Extremely NON-AGILE

5. Alternative EDA – Google - Polling has delays
Web Site A
The Cloud
Search
Indexed Site A
For Google it can still be a month before you are indexed

6. My dream: What if the cloud was Publish/Subscribe?
Web Site A
The Cloud
Search A
Traffic Data GPS info
MappingYelp

7. The Common EDA Pattern
- Hub and Spoke
Message
Broker
ServerA
AppC
ServerB
ServerC
AppBAppA

8. Technology is in Rapid Evolution
100 Billion API calls/minute
20,000 Public/80,000 Private APIs
Projects doubling
Every 18 months
1.5 Billion Smartphones
$100 Billion IaaS, PaaS, SaaS, iPaaS, BaaS, DaaS, …
Billions of Users
& IoT

9. Advantages of Publish/Subscribe Event
Driven Architecture
• Reduced Complexity
– Easily mediated to many
purposes
– Easier Programming
– Reduced Complexity for
Publisher and Subscriber
• Multiple Levels of failure
recovery
– Local distribution even if
network slow or
disconnected
– Action Locally when
possible
– Increased Redundancy
• Reuse of Events
– Things become
current
– Things become smart
• Shared Intelligence
– Reduced complexity of
individual service
• Reduced Load
– Only responsible to
deliver once
• Higher Agility
– Easy to replace
services
– Easy to provide
multiple versions of
services

10. EDA spurred a set of standard tools
Platform 2 Distributed SOA EDA
The
Network
Mediation/ESB
Activity
Monitor
Message Broker
Business
Process
Data Services
Registry
Discovery
Pattern Detection
Complex Event Processing

11. Logical Completeness – Use the Best Tool
Dimensionality
X: Stateful or not
Y: batch or real time
Z: low change or high change
X’: Long or short running

12. Platform 3
The Connected World
• Mobile – 1.5 Billion Smartphones
– 600,000 Mobile Apps
• IoT – Billions of devices
• Social – Billions of users
• APIs – 100 Billion API Calls/Minute
• Devops / PaaS – deliver new software daily
• Cloud – IaaS, PaaS, SaaS, iPaaS, CaaS, BaaS, DaaS -
$130 billion and growing fast

13. What is needed is a glue for NEW and OLD technology
Cassandra/
Hbase/
Mongo
Social API/App
Store
API Management
IoT

14. Platform 3
+API Management, BIG Data, Cloud, Social, Mobile,
Internet of Things, Device Management, Security everywhere
Business
Process
Pattern Detection
Complex Event ProcessingThe Cloud
Activity
Monitor +
SOCIAL
BIGDATA
Data Services
RDB +
BigData
Mediation/ESB +
APIs + Cloud
Adapters Social
Message Broker
+ BigData
Gov Registry
+ Social
Enterprise
Store + Mobile
Mgt
IOT Paas / SaaS /
DevOps Cloud
Integration
Identity Management
API Management
Mobile Device
Management

15. Non-Unitary Evolution
• Cloudification - Virtual Enterprise Evolution
• API Evolution
• Mobile / IoT Evolution
• BigData – Digitization Evolution

16. Cloudification – Virtual Enterprise Evolution
• Mostly this is about cost reduction
– SaaS Applications
– Personal Cloud Services
– IaaS
– PaaS
– iPaaS
– Security and Identity Management
– Cloud Management
– Best Practices

17.
Complete Cloud Platform

18. Identity and Access Management

19. Enterprise App Management
It’s like a
catalogue!

20. API Evolution
• Mostly this is about top line growth and agility
– Re-factor the Enterprise
– Existing Services made into “API’s”
– Build Mobile Apps
– Offer Services to external parties
– Integration
– Reuse

21. APIs Taking Over
100 Billion API Calls/Minute
Uninteresting App if it doesn’t use the Cloud
Smartphone1
In a car
Smartphone2
In a restaurant
Waze Uber Yelp
Medical
Monitor
Service
Smartphone4
On the street
Smartphone3
In a taxi
Tesla Glucose
Monitor
Drone
GPS
Emergency
Vehicle
Search
United
Airlines

22. API Management – A must
• External API Delivery
– You can hack this yourself but will ultimately want a real API
Management solution
• Internal API socialization and reuse
– Enterprise Refactoring
– Key to Enterprise Renewal, increasing innovation
• Management of External APIs
– What are allowed services to use? Governance
• Management of all services
– Quality of Service, Load, accounting, insight into users

23. Reuse/Re-Factoring Enterprise
API Management

24. Publish and Socialize to facilitate Reuse

25. BigData – Digitization Evolution
• Increase Top Line
– Increased sensitivity to customer
– Understanding the customer
– Reaching the customer
– Maximum efficiency in marketing and
sales efforts
– Better serving the customer

26. BigData
Lambda
Architecture
Best
Prac>ce
/
Best
of
both
worlds
http://srinathsview.blogspot.co.uk/2014/03/
implementing-bigdata-lambda.html

27. Mobile / IoT Evolution – 3 Use Cases!
• For the Factory / Enterprise
– Cost Reduction / Improved Efficiency / Automation
• For the Employees
– Productivity of Employees
• For the Customer
– Connected Business
– New Interaction Paradigms
– Increase Stickiness

28. Event Driven Computing New Era
Platform 3
“How do you share information between users and applications
in a connected Social IoT Mobile world?”
Social IoT
Mobile
Apps
IoT and
Mobile Mgt
API
Mgt and Reuse
BigData
Mediation / Broker
Micro
Services
Analytics
PaaS/DevOps
Security
Perf Mgt
Scaling

29. EDA Publish / Subscribe Mesh Network
IoT
IoT
IoT
IoT
IoT
IoT
IoT
IoT
IoT
Router1
Router2
No Single Point of Failure / Like the Internet
Functionality = Combination of all Services
Mesh1
Mesh2 Mesh3

30. Cloud Control and Aggregation
Mesh1
The Cloud
Mesh2
Customers
Employees

31. UI
IOT Reference Architecture
Device
API MgtDev Mgt
Service Bus BPM
BigData
Long Term
Analysis
Activity Mgt
Cloud
CEP
Cloud Orchestration/Integration
Commu
nication
Prov
ider
OS
Application
ESB, Security
OS
ESB, IM, PEP
Data Infrastructure
Hub
Orchestration
Integration
Rules Engine
Data
Dev Mgt
Rules Engine
User Dashboard
IoT Mgt
Dashboard

32.
IoT Reference Architecture

33. EDA Example Architectures

34. IoT,
Mobile

35. Trading Floor
Trader Market Data
Visualization
Risk AnalyticsMarket Data Source
Trader Order Placement
Trader Analytics
Visualization
Order Processing
Message Broker / Information Bus

36. What’s EDA on a trading floor?
Message Broker
Topics
Mediation/ESB
DSS to RDB
Data
FeedData
FeedData
FeedData
FeedData
FeedData
Feed
Trader Order
Entry
Trader Market
View
Trader
Analytics
Message Broker
Queues
Activity
Monitor
Activity Logs
Complex Event
Processor
Risk Desk
Operations
Desk
Business
Process

37. EDA Architecture: Ufer Taxis
Uber User App
Uber Driver
App
Meetup
Mobile App
United Airline
Mobile App
Mediation/ESB
Business
Processes
DSS to RDB
Message Broker
Payments
Square /
Zuora …Activity
Monitor
DSS Big Data
Activity Log
API and App
Store
Analytics
Peak Demand
Pricing
Dispute Handling
City Configuration
Reserve Service
Monitor Service
Driver Onboard
Driver Rating
Customer Onboard
Driver Interaction
Driver Selection
Driver Payments
Customer Payments
Avail Query

38. Online Sales
Mediation/ESB
DSS to RDB
Inventory
SKU / UPCs
Pricing
Consumer
Web App
Partner / OEM
Message Broker
Queues
Activity
Monitor
Activity Logs
Complex Event
Processor
Consumer
Mobile App
Business
Process
App
Server
Shipping
API Management

39. Health Enrollment –Insurance State or HMO
Mediation/ESB
DSS to RDB
Patient Data
Patient Web
Application
Patient Data
Sources
Message Broker
Queues
Activity
Monitor
Activity Logs
Complex Event
Processor
Patient Mobile
Application
Business
Process
App
ServerAPI Management
Patient
Medical
Records
Patient Data
SourcesPatient Data
Sources

40. Connected Car
API Mgt Dev Mgt
Upgrade
Cust Svc Service Bus
Design
BPM
BigData
Long Term
Analysis
Activity Mgt
Service Bus
Polling LoggingEvents
Brakes
Brakes
Brakes
Brakes
Console
Phone
Watch
3rd Party App /
Device3rd Party App /
Device3rd Party App /
Device
Brakes
Hi Priority
Planning
Lo Priority Apps
Cell
Ven Cloud
CEP - Service

41. Connected Construction
API MgtDev Mgt
Cust Svc
Service Bus
Design
BPM
BigData
Long Term
Analysis
Activity Mgt
Phone
Vehicles
Tools
Hi Priority PlanningLo Priority
Cloud
CEP
Building Sites
Vehicles
Vehicles
Phone
Phone
Tools
Tools
Tools
Data Gather
DeviceData Gather
Devices
Wharehouse
Wharehouses
Tools
Data Gather
Device
Contractors
Design Contractor
Planning
Tool
Connected Construction

42. WSO2 “Platform 3.0” Connected Enterprise
Architecture Gives you:
• Event Driven everywhere respond instantly
• Legacy Integration and renewal
• APIs instantly, managed and scalable
• Cloud Architecture and Deployment Flexibility and Speed
• Big Data Everywhere
• Easy Integration to Social
• Export APIs
• Easy Integration to payments, social, gps
WSO2 Advantage:
75 % of your service is
already written and
integrated with the latest
new technology from
BigData, Cloud, Social,
APIs is scalable and
secure

43.
Connected-Health Reference Architecture

44. About the Author
• 10 patents, publish / subscribe, multipath low latency high reliability messaging,
Content management in file systems, peer to peer messaging over WAN… others
• founder and CTO of TIBCO
• WSO2 Enterprise Product Strategy and Evangelism
• Twitter: @john_mathon
• Blog: CloudRamblings johnmathon.wordpress.com

45. Thank
You!