|By Vinay Singla||
|July 27, 2009 08:45 PM EDT||
Software as a Service (SaaS) is getting a lot of attention these days. The concept of SaaS is not new and has existed for a while. It has been referred to by other names such as Application Service Provider (ASP), Managed service provider (MSP), on-demand services, cloud computing, utility computing etc. SaaS involves exposing applications over the network on a subscription basis with the pay-as-you-go model. This model was earlier popular with only small businesses who didn't want to invest heavily in their own IT departments, but slowly, this model is making its way into medium and large enterprises. SaaS offerings from companies such as SalesForce.com and Cisco WebEx have made this move up the chain possible. SaaS value proposition is now pretty clear to companies of all sizes and SaaS has become a crucial component of IT strategy for all companies.
Similarly, Service Oriented Architecture (SOA) is getting a lot of attention these days. Again, the basic concept behind SOA is not new and has existed for a long time. SOA basically involves exposing functionality from distributed systems in the form of stateless functions; this is similar to other distributed system architectures such as CORBA and DCOM. What is making SOA much more popular and prevalent than CORBA or DCOM ever did is the web services standards such as SOAP, WSDL, UDDI etc. Similar standards existed with CORBA and DCOM as well but were not open enough and led to vendor or technology lock-in. With web services, all the major vendors are behind the same set of standards, so there is a higher chance of interoperability between various systems and hence a higher potential ROI for SOA.
SaaS deployments are revenue generating businesses targeted directly at end users, whereas SOA deployments are usually created within IT environments and the services are exposed to other applications as opposed to end users. What I intend to communicate through this article is the close relationship between SaaS and SOA. SaaS and SOA are very complementary in nature. In fact, they can't exist without each other.
What are the key elements of a SaaS platform? Every SaaS platform has to have a few core things in place, these are: multi-tenancy, ordering and provisioning, user authentication and authorization, service catalog and pricing, service monitoring, <st1:place w:st="on">SLA</st1:place> management, usage metering, billing, invoicing and payments. Besides these core components, a SaaS platform also needs to support the usual business functions such as marketing, lead tracking, sales, customer support, revenue and financial management, partner settlement, business intelligence etc.
Now, let's take a look at the key elements of a SOA platform. A typical SOA platform deployment consists of service producers and consumers from across the enterprise. Service producers publish services via the SOA platform, which get consumed by multiple service consumers. There has been a lot of focus on the technical aspects of a SOA platform e.g. service bus, communication protocols (e.g. SOAP), service interface definitions (e.g. WSDL), service discovery (e.g. UDDI) etc. The importance of service monitoring, management and governance is also well understood, but this is not enough. In a typical large enterprise, the service producers and consumers could be applications or systems belonging to different departments, organizations or even subsidiaries within the enterprise. In such environments, services cannot be produced and consumed informally without proper service management in place since there is a cost associated to hosting and exposing a service by the service producer. In order to derive this cost, the total cost of operations or ownership (TCO) needs to be taken into account besides the cost to create the service. Also, there are security concerns around publishing the services openly. This leads to the need for service catalog management, provisioning, authentication, authorization, usage metering and cross-department charging. As highlighted before, these are also the core elements of a SaaS platform. So as an enterprise SOA deployment matures, it is suddenly in need of the core functions of a SaaS platform.
Let's take a look at the flip side of this. Every SaaS platform needs to support the ability to add new service offerings and modify existing offerings in the service catalog with minimal changes to the core platform components. These additions or modifications should not lead to creation of a whole new SaaS platform for every service. Instead, all the basic functionalities of the SaaS platform such as ordering and provisioning, authentication and authorization, service catalog and pricing, metering, billing and invoicing, payments etc should be reused for multiple service offerings. Such reuse necessitates the need for a SOA platform. Further, use of a SOA platform enables other advantages such as a more flexible and plug-n-play architecture leading to lower overall cost of ownership.
It is probably quite intuitive that most complex architectures including SaaS architecture will benefit from SOA capabilities, but a SOA platform needing SaaS capabilities is not that intuitive. There has been a lot of hype around SOA for a while but most SOA deployments in large enterprises have either not been successful or have not provided the expected ROI because the SaaS elements are missing in these deployments. In order to realize the full benefits of large-scale SOA deployments, it is essential to have a SaaS like service management functionality in place. This is where SOA and SaaS together can enable the concept of "IT as a service" and help take IT to the next natural step in its evolution.
Leysin American School is an exclusive, private boarding school located in Leysin, Switzerland. Leysin selected an OpenStack-powered, private cloud as a service to manage multiple applications and provide development environments for students across the institution. Seeking to meet rigid data sovereignty and data integrity requirements while offering flexible, on-demand cloud resources to users, Leysin identified OpenStack as the clear choice to round out the school's cloud strategy. Additional...
Dec. 22, 2014 11:15 AM EST Reads: 2,797
SYS-CON Events announced today that Windstream, a leading provider of advanced network and cloud communications, has been named “Silver Sponsor” of SYS-CON's 16th International Cloud Expo®, which will take place on June 9–11, 2015, at the Javits Center in New York, NY. Windstream (Nasdaq: WIN), a FORTUNE 500 and S&P 500 company, is a leading provider of advanced network communications, including cloud computing and managed services, to businesses nationwide. The company also offers broadband, p...
Dec. 22, 2014 11:00 AM EST Reads: 3,006
The BPM world is going through some evolution or changes where traditional business process management solutions really have nowhere to go in terms of development of the road map. In this demo at 15th Cloud Expo, Kyle Hansen, Director of Professional Services at AgilePoint, shows AgilePoint’s unique approach to dealing with this market circumstance by developing a rapid application composition or development framework.
Dec. 22, 2014 11:00 AM EST Reads: 2,169
ScriptRock makes GuardRail, a DevOps-ready platform for configuration monitoring. Realizing we were spending way too much time digging up, cataloguing, and tracking machine configurations, we began writing our own scripts and tools to handle what is normally an enormous chore. Then we took the concept a step further, giving it a beautiful interface and making it simple enough for our bosses to understand. We named it GuardRail after its function - to allow businesses to move fast and stay sa...
Dec. 22, 2014 10:30 AM EST Reads: 1,519
SYS-CON Media announced today that Sematext launched a popular blog feed on DevOps Journal with over 6,000 story reads over the weekend. DevOps Journal is focused on this critical enterprise IT topic in the world of cloud computing. DevOps Journal brings valuable information to DevOps professionals who are transforming the way enterprise IT is done. Sematext is a globally distributed organization that builds innovative Cloud and On Premises solutions for performance monitoring, alerting an...
Dec. 22, 2014 10:00 AM EST Reads: 1,416
SYS-CON Events announced today Isomorphic Software, the global leader in high-end, web-based business applications, will exhibit at SYS-CON's DevOps Summit 2015 New York, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. Isomorphic Software is the global leader in high-end, web-based business applications. We develop, market, and support the SmartClient & Smart GWT HTML5/Ajax platform, combining the productivity and performance of traditional desktop software ...
Dec. 22, 2014 09:00 AM EST Reads: 2,054
In high-production environments where release cycles are measured in hours or minutes — not days or weeks — there's little room for mistakes and no room for confusion. Everyone has to understand what's happening, in real time, and have the means to do whatever is necessary to keep applications up and running optimally. DevOps is a high-stakes world, but done well, it delivers the agility and performance to significantly impact business competitiveness.
Dec. 21, 2014 07:00 PM EST Reads: 1,504
"Our premise is Docker is not enough. That's not a bad thing - we actually love Docker. At ActiveState all our products are based on open source technology and Docker is an up-and-coming piece of open source technology," explained Bart Copeland, President & CEO of ActiveState Software, in this SYS-CON.tv interview at DevOps Summit at Cloud Expo®, held Nov 4-6, 2014, at the Santa Clara Convention Center in Santa Clara, CA.
Dec. 21, 2014 06:00 PM EST Reads: 2,766
The Internet of Things is not new. Historically, smart businesses have used its basic concept of leveraging data to drive better decision making and have capitalized on those insights to realize additional revenue opportunities. So, what has changed to make the Internet of Things one of the hottest topics in tech? In his session at @ThingsExpo, Chris Gray, Director, Embedded and Internet of Things, discussed the underlying factors that are driving the economics of intelligent systems. Discover ...
Dec. 21, 2014 02:00 PM EST Reads: 3,122
"BSQUARE is in the business of selling software solutions for smart connected devices. It's obvious that IoT has moved from being a technology to being a fundamental part of business, and in the last 18 months people have said let's figure out how to do it and let's put some focus on it, " explained Dave Wagstaff, VP & Chief Architect, at BSQUARE Corporation, in this SYS-CON.tv interview at @ThingsExpo, held Nov 4-6, 2014, at the Santa Clara Convention Center in Santa Clara, CA.
Dec. 21, 2014 01:00 PM EST Reads: 2,643
The major cloud platforms defy a simple, side-by-side analysis. Each of the major IaaS public-cloud platforms offers their own unique strengths and functionality. Options for on-site private cloud are diverse as well, and must be designed and deployed while taking existing legacy architecture and infrastructure into account. Then the reality is that most enterprises are embarking on a hybrid cloud strategy and programs. In this Power Panel at 15th Cloud Expo (http://www.CloudComputingExpo.com...
Dec. 21, 2014 11:30 AM EST Reads: 3,172
Verizon Enterprise Solutions is simplifying the cloud-purchasing experience for its clients, with the launch of Verizon Cloud Marketplace, a key foundational component of the company's robust ecosystem of enterprise-class technologies. The online storefront will initially feature pre-built cloud-based services from AppDynamics, Hitachi Data Systems, Juniper Networks, PfSense and Tervela. Available globally to enterprises using Verizon Cloud, Verizon Cloud Marketplace provides a one-stop shop fo...
Dec. 21, 2014 11:00 AM EST Reads: 2,671
SYS-CON Events announced today that IDenticard will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. IDenticard™ is the security division of Brady Corp (NYSE: BRC), a $1.5 billion manufacturer of identification products. We have small-company values with the strength and stability of a major corporation. IDenticard offers local sales, support and service to our customers across the United States and Canada...
Dec. 21, 2014 10:00 AM EST Reads: 2,761
The move in recent years to cloud computing services and architectures has added significant pace to the application development and deployment environment. When enterprise IT can spin up large computing instances in just minutes, developers can also design and deploy in small time frames that were unimaginable a few years ago. The consequent move toward lean, agile, and fast development leads to the need for the development and operations sides to work very closely together. Thus, DevOps become...
Dec. 21, 2014 10:00 AM EST Reads: 2,814
SYS-CON Events announced today that AIC, a leading provider of OEM/ODM server and storage solutions, will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. AIC is a leading provider of both standard OTS, off-the-shelf, and OEM/ODM server and storage solutions. With expert in-house design capabilities, validation, manufacturing and production, AIC's broad selection of products are highly flexible and are conf...
Dec. 21, 2014 06:30 AM EST Reads: 2,633
AppZero has announced that its award-winning application migration software is now fully qualified within the Microsoft Azure Certified program. AppZero has undergone extensive technical evaluation with Microsoft Corp., earning its designation as Microsoft Azure Certified. As a result of AppZero's work with Microsoft, customers are able to easily find, purchase and deploy AppZero from the Azure Marketplace. With just a few clicks, users have an Azure-based solution for moving applications to the...
Dec. 20, 2014 09:00 AM EST Reads: 1,732
“In the past year we've seen a lot of stabilization of WebRTC. You can now use it in production with a far greater degree of certainty. A lot of the real developments in the past year have been in things like the data channel, which will enable a whole new type of application," explained Peter Dunkley, Technical Director at Acision, in this SYS-CON.tv interview at @ThingsExpo, held Nov 4–6, 2014, at the Santa Clara Convention Center in Santa Clara, CA.
Dec. 20, 2014 08:00 AM EST Reads: 2,313
The cloud is becoming the de-facto way for enterprises to leverage common infrastructure while innovating and one of the biggest obstacles facing public cloud computing is security. In his session at 15th Cloud Expo, Jeff Aliber, a global marketing executive at Verizon, discussed how the best place for web security is in the cloud. Benefits include: Functions as the first layer of defense Easy operation –CNAME change Implement an integrated solution Best architecture for addressing network-l...
Dec. 20, 2014 05:00 AM EST Reads: 2,174
“We help people build clusters, in the classical sense of the cluster. We help people put a full stack on top of every single one of those machines. We do the full bare metal install," explained Greg Bruno, Vice President of Engineering and co-founder of StackIQ, in this SYS-CON.tv interview at 15th Cloud Expo, held Nov 4–6, 2014, at the Santa Clara Convention Center in Santa Clara, CA.
Dec. 19, 2014 11:45 PM EST Reads: 2,171