|By Loek Bakker||
|September 12, 2005 05:00 PM EDT||
BizTalk Server is often positioned as a means to create a hub-and-spoke architecture. However, the popularity of the hub-and-spoke architecture, the traditional model for enterprise application integration (EAI), is declining. More and more architects and CIOs are targeting SOA (service-oriented architecture), and its infrastructural incarnation: the enterprise service bus (ESB). Does BizTalk fit into this ESB picture?
Trends and hype like SOA, EDA (event-driven architecture), and BPM (business process management) put integration on top of the list for most CIOs and IT managers. While all these trends hold assumptions about the ideal architecture for distributed computing, the differences in architectural approaches are not as clear to decision makers. Add that to the rapid changes evolving in the Microsoft platform, and it is easy to see that BizTalk Server 2004 can be positioned in different ways in your integration architecture.
In this article we are going to look at two different approaches for integration architecture, and we will see how BizTalk Server 2004 fits into these concepts.
The first dominant integration architecture that broke with the cumbersome point-to-point application integration model was the so-called hub-and-spoke architecture, often referred to as "message broker."
Hub-and-spoke architectures consist of a centralized hub that accepts requests from multiple applications that are connected to the centralized hub as spokes. The spokes are connected with the central hub through lightweight connectors, which are constructed and deployed on top of existing systems and applications. One of the key goals of the hub-and-spoke architecture with connectors is to leave the current systems untouched and unchanged as much as possible.
Inside the hub there are capabilities for requirements such as message transformation, validation, routing, and asynchronous message delivery. Furthermore, most hub-and-spoke-based EAI solutions provide process management functionality to orchestrate interapplication message exchanges, and an administration console to monitor and track the workings of the hub.
This integration architecture is the more traditional approach to connecting systems, and has been widely adopted because of its strengths:
- It provides a focal point for applications and reduces the links between applications from n² links to n links
- The hub provides a layer of insulation and functionality between the spokes, thus enabling spoke applications to be removed and replaced without other spokes being disrupted in any way
- Because of this simplification of connecting applications, the model offers lower total cost of ownership
Another important reason for this decline is that most hub-and-spoke-based EAI products are monolithic, expensive systems (especially when multiple implementations are deployed), based on proprietary standards. With the emergence of SOA, which is heavily based on open standards and loosely coupled, constituent services, the time has come for a new dominant integration architecture: the enterprise service bus.
The ESB Architecture
The ESB is often characterized as the backbone upon which to build SOA. There are numerous articles and white papers about the ESB, and they all have the following elements in common when describing what the ESB is: an ESB is seen as a distributed services architecture based on Web services standards, which delivers messaging middleware, intelligent routing, and XML transformation in conjunction with a flexible security framework and a management infrastructure for configuring, deploying, and monitoring the services. A typical ESB architecture looks somewhat like Figure 2.
At the heart of the ESB architecture is the enterprise services bus, a collection of middleware services that provides integration capabilities. Applications are connected to this logical bus through smart connectors, which encapsulate system functionality and provide a layer of abstraction between bus and application. In this smart connector we may find typical capabilities such as transformation services and security services. Through the use of open communication standards, connectivity between bus and applications is established.
The aforementioned description points out that an ESB is more a logical concept than it is a product. There are some vendors claiming that ESB is a product, but this perception comes more from a traditional view of integration architecture, which is based on products instead of standards.
One way or another, experts and analysts unanimously agree that for those companies and organizations pursuing an SOA or an EDA, the shift towards an ESB-based infrastructure is a major step in this evolvement.
Hub-and-Spoke vs ESB
An ESB provides the same functionality as a "traditional" broker in a hub-and-spoke architecture. The pictures we have seen of both the hub-and-spoke architecture and the ESB architecture are also very much alike. The key difference however is that the capabilities in an ESB are themselves SOA-based, since they are spread out across the bus in a distributed fashion, and the capabilities are hosted in separately deployable service containers. This is a fundamental difference in architecture.
The distributed nature of the ESB Services allows for the selective deployment of integration broker functionality exactly where you need it, with no additional overbloating where it's not needed. The ESB container model allows for the independent scalability of integration components, which are plugged into your SOA as event-driven services on an as-needed basis.
|.NET News Desk 09/12/05 05:06:21 PM EDT|
Goodbye Hub-and-Spoke, Hello ESB? Integration Architecture With BizTalk 2004. BizTalk Server is often positioned as a means to create a hub-and-spoke architecture. However, the popularity of the hub-and-spoke architecture, the traditional model for enterprise application integration (EAI), is declining. More and more architects and CIOs are targeting SOA (service-oriented architecture), and its infrastructural incarnation: the enterprise service bus (ESB). Does BizTalk fit into this ESB picture?
For IoT to grow as quickly as analyst firms’ project, a lot is going to fall on developers to quickly bring applications to market. But the lack of a standard development platform threatens to slow growth and make application development more time consuming and costly, much like we’ve seen in the mobile space. In his session at @ThingsExpo, Mike Weiner, Product Manager of the Omega DevCloud with KORE Telematics Inc., discussed the evolving requirements for developers as IoT matures and conducted a live demonstration of how quickly application development can happen when the need to comply wit...
Jul. 29, 2015 07:30 AM EDT Reads: 229
Explosive growth in connected devices. Enormous amounts of data for collection and analysis. Critical use of data for split-second decision making and actionable information. All three are factors in making the Internet of Things a reality. Yet, any one factor would have an IT organization pondering its infrastructure strategy. How should your organization enhance its IT framework to enable an Internet of Things implementation? In his session at @ThingsExpo, James Kirkland, Red Hat's Chief Architect for the Internet of Things and Intelligent Systems, described how to revolutionize your archit...
Jul. 28, 2015 06:30 PM EDT Reads: 1,371
It is one thing to build single industrial IoT applications, but what will it take to build the Smart Cities and truly society-changing applications of the future? The technology won’t be the problem, it will be the number of parties that need to work together and be aligned in their motivation to succeed. In his session at @ThingsExpo, Jason Mondanaro, Director, Product Management at Metanga, discussed how you can plan to cooperate, partner, and form lasting all-star teams to change the world and it starts with business models and monetization strategies.
Jul. 28, 2015 04:30 PM EDT Reads: 1,752
The Internet of Everything (IoE) brings together people, process, data and things to make networked connections more relevant and valuable than ever before – transforming information into knowledge and knowledge into wisdom. IoE creates new capabilities, richer experiences, and unprecedented opportunities to improve business and government operations, decision making and mission support capabilities.
Jul. 28, 2015 04:00 PM EDT Reads: 218
The Internet of Things is not only adding billions of sensors and billions of terabytes to the Internet. It is also forcing a fundamental change in the way we envision Information Technology. For the first time, more data is being created by devices at the edge of the Internet rather than from centralized systems. What does this mean for today's IT professional? In this Power Panel at @ThingsExpo, moderated by Conference Chair Roger Strukhoff, panelists addressed this very serious issue of profound change in the industry.
Jul. 28, 2015 03:00 PM EDT Reads: 1,247
Discussions about cloud computing are evolving into discussions about enterprise IT in general. As enterprises increasingly migrate toward their own unique clouds, new issues such as the use of containers and microservices emerge to keep things interesting. In this Power Panel at 16th Cloud Expo, moderated by Conference Chair Roger Strukhoff, panelists addressed the state of cloud computing today, and what enterprise IT professionals need to know about how the latest topics and trends affect their organization.
Jul. 28, 2015 02:00 PM EDT Reads: 1,157
SYS-CON Events announced today that HPM Networks will exhibit at the 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. For 20 years, HPM Networks has been integrating technology solutions that solve complex business challenges. HPM Networks has designed solutions for both SMB and enterprise customers throughout the San Francisco Bay Area.
Jul. 28, 2015 11:45 AM EDT Reads: 409
Converging digital disruptions is creating a major sea change - Cisco calls this the Internet of Everything (IoE). IoE is the network connection of People, Process, Data and Things, fueled by Cloud, Mobile, Social, Analytics and Security, and it represents a $19Trillion value-at-stake over the next 10 years. In her keynote at @ThingsExpo, Manjula Talreja, VP of Cisco Consulting Services, discussed IoE and the enormous opportunities it provides to public and private firms alike. She will share what businesses must do to thrive in the IoE economy, citing examples from several industry sectors.
Jul. 28, 2015 11:00 AM EDT Reads: 2,027
Growth hacking is common for startups to make unheard-of progress in building their business. Career Hacks can help Geek Girls and those who support them (yes, that's you too, Dad!) to excel in this typically male-dominated world. Get ready to learn the facts: Is there a bias against women in the tech / developer communities? Why are women 50% of the workforce, but hold only 24% of the STEM or IT positions? Some beginnings of what to do about it! In her Opening Keynote at 16th Cloud Expo, Sandy Carter, IBM General Manager Cloud Ecosystem and Developers, and a Social Business Evangelist, d...
Jul. 27, 2015 09:00 PM EDT Reads: 2,038
There will be 150 billion connected devices by 2020. New digital businesses have already disrupted value chains across every industry. APIs are at the center of the digital business. You need to understand what assets you have that can be exposed digitally, what their digital value chain is, and how to create an effective business model around that value chain to compete in this economy. No enterprise can be complacent and not engage in the digital economy. Learn how to be the disruptor and not the disruptee.
Jul. 27, 2015 10:00 AM EDT Reads: 2,018
Akana has released Envision, an enhanced API analytics platform that helps enterprises mine critical insights across their digital eco-systems, understand their customers and partners and offer value-added personalized services. “In today’s digital economy, data-driven insights are proving to be a key differentiator for businesses. Understanding the data that is being tunneled through their APIs and how it can be used to optimize their business and operations is of paramount importance,” said Alistair Farquharson, CTO of Akana.
Jul. 27, 2015 09:00 AM EDT Reads: 308
Business as usual for IT is evolving into a "Make or Buy" decision on a service-by-service conversation with input from the LOBs. How does your organization move forward with cloud? In his general session at 16th Cloud Expo, Paul Maravei, Regional Sales Manager, Hybrid Cloud and Managed Services at Cisco, discusses how Cisco and its partners offer a market-leading portfolio and ecosystem of cloud infrastructure and application services that allow you to uniquely and securely combine cloud business applications and services across multiple cloud delivery models.
Jul. 27, 2015 08:00 AM EDT Reads: 1,890
The enterprise market will drive IoT device adoption over the next five years. In his session at @ThingsExpo, John Greenough, an analyst at BI Intelligence, division of Business Insider, analyzed how companies will adopt IoT products and the associated cost of adopting those products. John Greenough is the lead analyst covering the Internet of Things for BI Intelligence- Business Insider’s paid research service. Numerous IoT companies have cited his analysis of the IoT. Prior to joining BI Intelligence, he worked analyzing bank technology for Corporate Insight and The Clearing House Payment...
Jul. 26, 2015 09:00 PM EDT Reads: 1,558
In his keynote at 16th Cloud Expo, Rodney Rogers, CEO of Virtustream, discussed the evolution of the company from inception to its recent acquisition by EMC – including personal insights, lessons learned (and some WTF moments) along the way. Learn how Virtustream’s unique approach of combining the economics and elasticity of the consumer cloud model with proper performance, application automation and security into a platform became a breakout success with enterprise customers and a natural fit for the EMC Federation.
Jul. 26, 2015 08:00 AM EDT Reads: 2,139
"Optimal Design is a technology integration and product development firm that specializes in connecting devices to the cloud," stated Joe Wascow, Co-Founder & CMO of Optimal Design, in this SYS-CON.tv interview at @ThingsExpo, held June 9-11, 2015, at the Javits Center in New York City.
Jul. 25, 2015 02:00 PM EDT Reads: 379
SYS-CON Events announced today that CommVault has been named “Bronze Sponsor” of SYS-CON's 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. A singular vision – a belief in a better way to address current and future data management needs – guides CommVault in the development of Singular Information Management® solutions for high-performance data protection, universal availability and simplified management of data on complex storage networks. CommVault's exclusive single-platform architecture gives companies unp...
Jul. 25, 2015 01:00 PM EDT Reads: 1,939
Electric Cloud and Arynga have announced a product integration partnership that will bring Continuous Delivery solutions to the automotive Internet-of-Things (IoT) market. The joint solution will help automotive manufacturers, OEMs and system integrators adopt DevOps automation and Continuous Delivery practices that reduce software build and release cycle times within the complex and specific parameters of embedded and IoT software systems.
Jul. 25, 2015 12:15 PM EDT Reads: 442
"ciqada is a combined platform of hardware modules and server products that lets people take their existing devices or new devices and lets them be accessible over the Internet for their users," noted Geoff Engelstein of ciqada, a division of Mars International, in this SYS-CON.tv interview at @ThingsExpo, held June 9-11, 2015, at the Javits Center in New York City.
Jul. 25, 2015 12:00 PM EDT Reads: 1,520
Internet of Things is moving from being a hype to a reality. Experts estimate that internet connected cars will grow to 152 million, while over 100 million internet connected wireless light bulbs and lamps will be operational by 2020. These and many other intriguing statistics highlight the importance of Internet powered devices and how market penetration is going to multiply many times over in the next few years.
Jul. 25, 2015 09:00 AM EDT Reads: 1,480
SYS-CON Events announced today that Dyn, the worldwide leader in Internet Performance, will exhibit at SYS-CON's 17th International Cloud Expo®, which will take place on November 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. Dyn is a cloud-based Internet Performance company. Dyn helps companies monitor, control, and optimize online infrastructure for an exceptional end-user experience. Through a world-class network and unrivaled, objective intelligence into Internet conditions, Dyn ensures traffic gets delivered faster, safer, and more reliably than ever.
Jul. 24, 2015 11:00 PM EDT Reads: 2,044