1. Architecture for the Agile Enterprise: The Role of Events and ESB’s Ron Rasmussen VP Product Development KnowNow Inc. www.knownow.com ron@knownow.com June 7, 2004

2. Bridging the gap Businesses need to be more responsive and agile Silo’s within enterprises and across partners need to be bridged Information is changing at an increasing rate Existing approaches are limited and cannot scale –Batch, Request-Reply, Messaging, EAI, data warehouse, etc. New solutions have emerged –Enterprise Service Buses (ESB), Event Driven Architectures (EDA), Service Oriented Architectures (SOA)

3. HTTP Integration Depends On Middleware - The mess created Original Source: Gartner HTTP Modifications: KnowNow

4. Event Management Publish/Subscribe Many-To-Many Message Routing Message Queuing Transformation Logging Provisioning Service Oriented Architecture Composite Applications Services Users Network is the Bus Enterprise Service Bus Event Management Publish/Subscribe

5. Legacy Departmental Systems Event Driven Architecture CRM Request Response Task Based EAI ERP Task Based Request Response ESB Services Oriented Architecture Large Monolithic Systems of Record Problem Solving Ad Hoc Extended Enterprise Internet

6. Key Event Driven Architecture Characteristics Decoupled communication across the enterprise –No need to know all the recipients of the message –Allows business units to react in new ways without changing event sources Many-to-many –N-Publishers, M-Subscribers –Degenerate case is 1-to-1 messaging Dynamic, parallel, and asynchronous Extends existing systems when they exist –EAI, ESB’s, etc. Act as a lightweight ESB, EAI if they do not exist Optimized for events – asynchronous decoupled delivery of events from 1 to 10’s of thousands of subscribers

7. KnowNow Event Management Unique Additions Meets all the characteristics of an event router for an EDA Utilize HTTP as core native protocol –Makes KnowNow an “Internet EDA” and a lightweight “Internet Service Bus” –Transparently extends architecture outside the enterprise – beyond the firewall –Why limit next generation architectures to the bounds of your enterprise? It’s not the way your business works so why build in such a limitation? Desktops are first class citizens –Desktop applications, shrink wrapped or custom, participate in events and bus’s are extended to the desktop. J2EE/.NET Architecture agnostic –Native.NET, JAVA, C++, HTTP POST interfaces Designed from inception for internet scale event routing

8. Summary Businesses driving latency down –More business, more profitable –Events drive business process, automating events puts you on a path of agility Existing middleware and approaches cannot keep up with the speed of business ESB’s with events and Event Driven Architectures are well suited to delivering agility KnowNow is uniquely positioned to enable event driven systems in a simple non-disruptive way within and between enterprises

9. Architecture for the Agile Enterprise Role of Events and ESB Ron Rasmussen VP Product Development KnowNow Inc. www.knownow.com ron@knownow.com June 7, 2004