Untitled Document

SERVICE VIRTUALIZATION THROUGH FEDERATED ESB IN GRID-ENABLED ENVIRONMENT

What is Service Virtualization?

Service virtualization is the ability to hide operating system, platform technology and network connection or transport and helps the end-user to work with simplified resources. In other words, one has to just know and implement business logic without any knowledge of other underlying pieces. Polymorphism is best suited example for code-level virtualization.

When implementing business services there are four things that one needs to look at:

i. Business logic
ii. Deployment/runtime configuration
iii. Security/compliance configuration
iv. Messaging infrastructure details

Another aspect of what one needs to know is the reuse and repeatable code that is churned out in development lifecycle of a product/project. In any given scenario during development there will be larger code reuse applicable from deployment, security and messaging standpoint. Such implementation shouldn't be duplicated anywhere in a typical enterprise SOA model. Instead in the above scenario, the set of configuration has to be coded only one time at one place. So in any example, if there are three services that need to be developed and deployed separately, then what is meant by "service virtualization" is that only business logic (i) needs to be written for disparate services while (ii) (iii) (iv) needs to be just configured and reused.

Characteristics and Benefits of Service Virtualization
1. Enables factory development model giving way for high productivity
2. Packaging & container deployment
3. Significant code reduction with reconfigure ability on service binding, security and policy
4. Minimal effort on service administration & code release
5. Technology independence

So in any SOA Enterprise, what is meant by "service virtualization" is developing service with keeping deployment and services management to minimum and constant.

Service Virtualization through Federated ESB

Enterprise Services Bus (ESB) is the backbone for any SOA enterprise. ESB helps virtual zing the services. In a larger enterprise you may need multiple ESBs based on LOBs to rollout huge SOA initiatives. This is because of growing demand on performance and SLAs. Different ESBs emerge with different functions. These ESBs might be similar or different based on one or multiple vendor selection.

In today's ESB evolution we see that ESB has come miles from foundational to transformational and now with one that can adapt dynamically, called Federated ESB (FESB).

In transformational environment ESB would use service registry, do BPM service orchestration, service activity and systems monitoring with or without using computing appliance systems.

Federated ESB (FESB) would not only use the above features, but also have services hosted on multiple ESBs. FESB may be owned by multiple LOBs. They are managed separately but they work together as Single Golden Source for Enterprise Services. These FESB need not proliferate from same vendor.

Dependencies
1. Single point of source for registry source
2. Autonomous manager managing and mediating service across FESB
3. How grid environments enables optimization of service virtualization in Federated ESB?
4. FESB enabled by grid enables high end performance based dynamically configurable environment
5. In a Federated ESB grid environment, the provider and consumer had to scale and reconfigure based on runtime demand vs. supply footprint. The autonomous manager would start or stop services across ESB. Know the health status of the services on distributed grid environment across Federated ESB environments. In other words, the services deployed in Federated ESB grid environment should behave in manner of self-implied Artificial Intelligence System.

Here are the bases for any SOA infrastructure to attain maturity on Federated ESB grid:

i. Self managed autonomous domain
ii. Event driven application
iii. Service mediation
iv. Heterogeneous platform support

Self Managed Autonomous Domain
In Federated ESB grid environment, there will be one master ESB and several other slave ESBs. Both master and slave will be workers except that the master will also manage the services deployed in other ESB for throttling (slow consumer/fast provider) or service recovery.

At the moment of master ESB failure, one of the slaves will be promoted as master and would start managing until the original master comes back online. This entire setup is called as self managed autonomous domain setup.

In an extreme transaction procession environment, this setup would ensure high system performance, since the autonomous domain would manage the services in such a manner that the least used ESB would be leveraged by scaling the services on it.

Event Driven Application
Event driven application platforms support event-centric programming models such as event handlers which are triggered by process business events. The service application that is exposed as part of ESB should support event driven application (EDA) models.

Service Mediation
The ESB should able to intercept and modify service messages that are passed between the services. It should process message based on primitive or complex logic. It should able to transform, route or augment message within the grid environment.

Heterogeneous Platform Support
Services that are hosed in the Grid enabled architecture should not be technology agnostic. It should be able to support JAVA, .net, python, ecetera.

What Services Need to be Optimized?

Identification of services for optimization would be based on most used ones in terms of number of hits or services that conform to SLA commitments. These services would have to be configured and deployed on various ESBs. At runtime these services would be dynamically scaled based on the policies written within the grid environment. Services that need to process extreme transaction would leverage this underlying grid-enabled FESB environment.

Extreme ESB Service

Fig 6. Federated ESB (FESB) in Grid Enabled Environment (click on image to enlarge)

CONCLUSION

XTP is a complex problem and cannot be solved with one specific product or technology. Organizations should follow an incremental approach by complementing established and proven products with the appropriate combination of innovative technologies as needed for supporting emerging business requirements, or adopt the riskier and more disruptive technologies to grab greater business benefits and sustainable competitive advantage. The combination of proven and advanced technologies is, in many cases, the most pragmatic way to take advantage of innovation by keeping risk at a tolerable level.

Extreme ESB Grays

Fig 7. Roadmap for Hybrid Technology Adoption



-1-

1  

Explore Our Topics

  • EDITOR'S BRIEFING
ebizQ editorial highlights and updates, compiled by ebizQ staff
  • BaaS bonus: In this podcast, Gartner Research Director Gordon Van Huizen discusses the Backend as a Service marketplace and the approach's pros, cons and challenges.
  • Cloud quiz: How much do you know about business process management in the cloud? Test yourself with this six-question cloud BPM quiz.
  • Three key steps: Clay Richardson of Forrester Research describes ways to emphasize user experience in business process design.
  • ebizQ editorial: Browse ebizQ's collection of independent editorial content, including articles, tips, Q & As, podcasts, guest columns, book excerpts and more.
  • Virtual Conferences
  • Webinars
  • Roundtables

BPM in Action

March 10, 2011

The sixth annual BPM in Action 2011 Virtual Conference will explore cutting-edge market developments in BPM and describe how to leverage them for improved business operation and performance. More

View All Virtual Conferences

Smart Case Management: Why It's So Smart.

Date:Nov 05, 2009
Time:12:00 PM ET- (17:00 GMT)

REGISTER TODAY!

Date:Oct 29, 2009
Time:15:00 PM ET- (19:00 GMT)

REGISTER TODAY!
View All Roundtables
  • Research Library
  • Podcasts
  • News

Joe McKendrick: Part II of II: Designing Evolve-ability into SOA and IT Systems

In part two of Joe McKendrick's recent podcast with Miko Matsumura, chief strategist for Software AG, they talk about how SOA and IT systems need to change and grow and adapt with the organization around it.

Listen Now

Phil Wainewright: Helping Brands Engage with Social Media

Phil Wainewright interviews David Vap, VP of products at RightNow Technologies, and finds out how sharing best practices can help businesses understand how best to engage with online communities.

Listen Now

Peter Schooff: Making Every IT Dollar Result in a Desired Business Outcome: Scott Hebner of IBM Rati

Scott Hebner, Vice President of Marketing and Strategy for IBM Rational, discusses a topic on the top of every company's mind today: getting the most from IT investments.

Listen Now

Jessica Ann Mola: Where Will BI Fit In? Lyndsay Wise Explains

In BI, this tough economy and the increasing role of Web 2.0 and MDM are certainly topics on people's minds today. WiseAnalytics' Lyndsay Wise addresses each of them in this informative podcast.

Listen Now

Dennis Byron: Talking with...Deepak Singh of BPM Provider Adeptia

Deepak Singh, President and CTO of Adeptia, joins ebizQ's Dennis Byron in a podcast that gets its hand around the trend of industry-specific BPM.

Listen Now
More Podcasts
  • Most Popular
  • Quick Guide
  • Most Discussed

Quick Guide: What is BPM?

Learn More

Quick Guide: What is Event Processing?

Smart event processing can help your company run smarter and faster. This comprehensive guide helps you research the basics of complex event processing (CEP) and learn how to get started on the right foot with your CEP project using EDA, RFID, SOA, SCADA and other relevant technologies. Learn More

Quick Guide: What is Enterprise 2.0?

A lot of people are talking about Enterprise 2.0 as being the business application of Web 2.0 technology. However, there's still some debate on exactly what this technology entails, how it applies to today's business models, and which components bring true value. Some use the term Enterprise 2.0 exclusively to describe the use of social networking technologies in the enterprise, while others use it to describe a web economy platform, or the technological framework behind such a platform. Still others say that Enterprise 2.0 is all of these things. Learn More

Featured Bloggers

Steven Minsky's Latest Blog Posts:

Read Steven Minsky's Blog
Noam Tamarkin's Latest Blog Posts:

Read Noam Tamarkin's Blog
Janne J. Korhonen's Latest Blog Posts:

Read Janne J. Korhonen's Blog
Adrian Grigoriu's Latest Blog Posts:

Read Adrian Grigoriu's Blog
Scott Cleveland's Latest Blog Posts:

Read Scott Cleveland's Blog
Dion Hinchcliffe's Latest Blog Posts:

Read Dion Hinchcliffe's Blog
Michael Poulin's Latest Blog Posts:

Read Michael Poulin's Blog

View All ebizQ Bloggers