|By Brent Carlson, Eric Marks||
|January 29, 2006 10:00 AM EST||
How do we achieve these high standards for our services under development? By establishing standardized governance/review checkpoints throughout the service SDLC. We recommend that at a minimum, organizations should review services under development at these points in the SDLC:
- Requirements Complete: All business requirements documented and initial service definition specified (ideally as WSDL), allowing reviewers to validate the service against its business architectural context
- Design Complete: Implementation approach defined with sufficient documentation (e.g., UML design models completed, relevant legacy APIs identified) to allow reviewers to validate design against technical and application/integration architectural contexts
- Implementation Complete: Service implemented and deployed in a test environment, with sufficient supporting documentation (e.g., sample client code, automated/manual test cases and test results, usage guide) to enable a potential consumer to understand the service and to trust its quality and stability
Production Best Practice: Versioned Services Governance
Because services (like components) are meant to be used in more than one application, organizations need to plan for the incremental enhancement of their services over a long deployment lifetime. In effect, organizations planning to build a robust, stable, and extensible SOA need to treat their services as "products."
What does treating a service as a "product" mean to our IT organization?
1. Each produced service must have a regular and well-defined release cycle. This release cycle needs to occur often enough to meet consumer needs on a timely basis, but not so often as to churn existing consumers. Typically a release cycle of somewhere between three and six months is appropriate for most organizations, and allows them to meet new service needs without unduly disrupting existing applications. As multiple versions of a service are released, consider defining these life-cycle states for your services:
- Under Development: Available for requirements gathering and application development team planning purposes
- Production: Mainline version for use in new development
- Retired: Still in use by existing applications but not allowed for use by new apps
- Obsolete: All applications should be migrated off this version; version metadata is maintained for traceability/audit purposes only
3. Mechanisms for gathering requirements from current and potential "customers" need to be established by the enterprise architecture and service review teams. Consider establishing a "product manager" role within these organizations, one that manages the aggregate set of business requirements for the service and works to prioritize requirements with its current and potential consumers.
Again, a well-designed services repository/registry can help organizations manage service versions over their lifetimes, with automated notifications, embedded discussion forums for requirements gathering and analysis, and filter-based search capabilities that expose services to potential consumers based on service state (e.g., new application project developers should not be able to search for "Retired" or "Obsolete" services).
Distribution Best Practice: Service Distribution via Services Repository/Registry
Now that we have a set of broadly reusable services produced through our application of the aforementioned best practices, how are we going to get them into the hands of our application developers? This takes us back to the discoverability and consumability aspects of services production. Simply put, unless your services are all as simple as the ubiquitous Stock Quote example so often used in articles discussing Web services, WSDL is not enough. Syntactic definition does not equate to semantic understanding. Potential service consumers need ready access to supporting artifacts (e.g., usage guide, sample client code) to make the service consumable to them. The service also needs to be discoverable - wrapping the service with metadata that allows the user to search for useful services using varying techniques and user interfaces. \A well-designed services repository/registry goes a long way to helping IT organizations to efficiently deliver services to potential consumers. At a minimum, such a repository/registry should support both browser-based access and deep IDE integration to enable users with varying roles to discover the right services. For example, a business architect will likely feel most comfortable using domain terminology searches within a browser, while a designer or developer would prefer a UML-based visual search mechanism within their preferred IDE.
Consumption Best Practice: Service Usage Registration and Traceability by Application Development Projects
The third leg of the SOA governance stool - consumption - comes into play as we begin to build, deploy, and maintain applications based on our previously produced and distributed services. Application-based tracking of service consumption is essential for a number of reasons: to support internally defined and externally imposed business governance mandates, to simplify the process of ongoing impact analysis and change management as the SOA matures, and to provide a quantitative ROI based on real service usage statistics back to the C-level within the enterprise.
Let's take a quick look at governance mandates. Business-level governance (through the form of government regulations such as HIPAA, SOX, and Basel III) is increasingly making its way down to IT. As a result, increasing numbers of auditability and traceability requirements are being applied to the IT organization, and these requirements cannot be met without some form of service usage registration mechanism (and again, for IT organizations of any size, this registration mechanism needs to be automated through the services repository/registry).
Remember also that our services will change over time as new requirements are identified (as discussed above in the "Production Best Practice: Versioned Services Governance" section). Existing application teams need to be kept abreast of planned and implemented changes to the services they are using, both to participate in requirements feedback and to prepare for the eventual obsolescence of back-level services as new service versions are deployed.
Finally, since enterprises are not in business to serve IT but rather it's the other way around, our organization's C-level executives are certainly going to expect a quantifiable ROI from any SOA initiative. Without direct traceability over service usage, it becomes arduous at best and impossible at worst to assemble such a quantifiable ROI based on service use and reuse. On the other hand, if usage registration is built right into the services repository/registry, quantifiable ROI is as simple as running a periodic report.
Don't think managing your services operationally is enough. Just because you can keep tabs on a service's execution doesn't ensure that the service is really supporting the overall business goals of the SOA. Traceability back to the business goals/priorities through EA to SDLC to operations will make SOA successful in the enterprise. Also, don't minimize organizational impacts that may be needed - monolithic, project-centric funding models are not likely to work in the loosely coupled world of SOA.
|robertmorschel 10/10/12 03:57:00 AM EDT|
In my experience SOA needs to begin with a single, skilled team that can define evolving standards and processes in an agile manner, before being let loose on the enterprise; and even then, only if the enterprise has an established and effective centralised governance function that would be able to enforce SOA policies across multiple teams.
|Gary Smith - SOA Network Architect 02/22/06 11:51:19 AM EST|
Excellent. This puts governance into perspective.
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 how hardware commoditization, the ubiquitous nature of connectivity, and the emergence of Big Data a...
Dec. 21, 2014 02:00 PM EST Reads: 2,322
"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: 1,971
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), moderated by Ashar Baig, Research Director, Cloud, at Gigaom Research, Nate Gordon, Director of T...
Dec. 21, 2014 11:30 AM EST Reads: 2,404
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. Our partner network encompasses some 300 of the world's leading systems integrators and security s...
Dec. 21, 2014 10:00 AM EST Reads: 2,141
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, phone and digital TV services to consumers primarily in rural areas.
Dec. 21, 2014 08:30 AM EST Reads: 2,264
ARMONK, N.Y., Nov. 20, 2014 /PRNewswire/ -- IBM (NYSE: IBM) today announced that it is bringing a greater level of control, security and flexibility to cloud-based application development and delivery with a single-tenant version of Bluemix, IBM's platform-as-a-service. The new platform enables developers to build ap...
Dec. 21, 2014 06:15 AM EST Reads: 2,106
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. 20, 2014 11:00 PM EST Reads: 1,338
“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: 1,349
DevOps Summit 2015 New York, co-located with the 16th International Cloud Expo - to be held June 9-11, 2015, at the Javits Center in New York City, NY - announces that it is now accepting Keynote Proposals. The widespread success of cloud computing is driving the DevOps revolution in enterprise IT. Now as never before, development teams must communicate and collaborate in a dynamic, 24/7/365 environment. There is no time to wait for long development cycles that produce software that is obsolete at launch. DevOps may be disruptive, but it is essential.
Dec. 18, 2014 09:45 PM EST Reads: 1,202
"People are a lot more knowledgeable about APIs now. There are two types of people who work with APIs - IT people who want to use APIs for something internal and the product managers who want to do something outside APIs for people to connect to them," explained Roberto Medrano, Executive Vice President at SOA Software, in this SYS-CON.tv interview at Cloud Expo, held Nov 4–6, 2014, at the Santa Clara Convention Center in Santa Clara, CA.
Dec. 18, 2014 09:00 AM EST Reads: 1,371
Nigeria has the largest economy in Africa, at more than US$500 billion, and ranks 23rd in the world. A recent re-evaluation of Nigeria's true economic size doubled the previous estimate, and brought it well ahead of South Africa, which is a member (unlike Nigeria) of the G20 club for political as well as economic reasons. Nigeria's economy can be said to be quite diverse from one point of view, but heavily dependent on oil and gas at the same time. Oil and natural gas account for about 15% of Nigera's overall economy, but traditionally represent more than 90% of the country's exports and as...
Dec. 18, 2014 06:00 AM EST Reads: 910
The Internet of Things is a misnomer. That implies that everything is on the Internet, and that simply should not be - especially for things that are blurring the line between medical devices that stimulate like a pacemaker and quantified self-sensors like a pedometer or pulse tracker. The mesh of things that we manage must be segmented into zones of trust for sensing data, transmitting data, receiving command and control administrative changes, and peer-to-peer mesh messaging. In his session at @ThingsExpo, Ryan Bagnulo, Solution Architect / Software Engineer at SOA Software, focused on desi...
Dec. 17, 2014 11:15 PM EST Reads: 1,407
"At our booth we are showing how to provide trust in the Internet of Things. Trust is where everything starts to become secure and trustworthy. Now with the scaling of the Internet of Things it becomes an interesting question – I've heard numbers from 200 billion devices next year up to a trillion in the next 10 to 15 years," explained Johannes Lintzen, Vice President of Sales at Utimaco, in this SYS-CON.tv interview at @ThingsExpo, held Nov 4–6, 2014, at the Santa Clara Convention Center in Santa Clara, CA.
Dec. 17, 2014 11:00 PM EST Reads: 1,454
"For over 25 years we have been working with a lot of enterprise customers and we have seen how companies create applications. And now that we have moved to cloud computing, mobile, social and the Internet of Things, we see that the market needs a new way of creating applications," stated Jesse Shiah, CEO, President and Co-Founder of AgilePoint Inc., 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. 17, 2014 08:00 PM EST Reads: 1,445
SYS-CON Events announced today that Gridstore™, the leader in hyper-converged infrastructure purpose-built to optimize Microsoft workloads, 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. Gridstore™ is the leader in hyper-converged infrastructure purpose-built for Microsoft workloads and designed to accelerate applications in virtualized environments. Gridstore’s hyper-converged infrastructure is the industry’s first all flash version of HyperConverged Appliances that include both compute and storag...
Dec. 17, 2014 06:30 PM EST Reads: 1,375
Today’s enterprise is being driven by disruptive competitive and human capital requirements to provide enterprise application access through not only desktops, but also mobile devices. To retrofit existing programs across all these devices using traditional programming methods is very costly and time consuming – often prohibitively so. In his session at @ThingsExpo, Jesse Shiah, CEO, President, and Co-Founder of AgilePoint Inc., discussed how you can create applications that run on all mobile devices as well as laptops and desktops using a visual drag-and-drop application – and eForms-buildi...
Dec. 17, 2014 11:45 AM EST Reads: 1,557
We certainly live in interesting technological times. And no more interesting than the current competing IoT standards for connectivity. Various standards bodies, approaches, and ecosystems are vying for mindshare and positioning for a competitive edge. It is clear that when the dust settles, we will have new protocols, evolved protocols, that will change the way we interact with devices and infrastructure. We will also have evolved web protocols, like HTTP/2, that will be changing the very core of our infrastructures. At the same time, we have old approaches made new again like micro-services...
Dec. 16, 2014 11:45 PM EST Reads: 1,398
Code Halos - aka "digital fingerprints" - are the key organizing principle to understand a) how dumb things become smart and b) how to monetize this dynamic. In his session at @ThingsExpo, Robert Brown, AVP, Center for the Future of Work at Cognizant Technology Solutions, outlined research, analysis and recommendations from his recently published book on this phenomena on the way leading edge organizations like GE and Disney are unlocking the Internet of Things opportunity and what steps your organization should be taking to position itself for the next platform of digital competition.
Dec. 15, 2014 11:45 PM EST Reads: 1,744
The 3rd International Internet of @ThingsExpo, co-located with the 16th International Cloud Expo - to be held June 9-11, 2015, at the Javits Center in New York City, NY - announces that its Call for Papers is now open. The Internet of Things (IoT) is the biggest idea since the creation of the Worldwide Web more than 20 years ago.
Dec. 15, 2014 10:30 AM EST Reads: 6,915
As the Internet of Things unfolds, mobile and wearable devices are blurring the line between physical and digital, integrating ever more closely with our interests, our routines, our daily lives. Contextual computing and smart, sensor-equipped spaces bring the potential to walk through a world that recognizes us and responds accordingly. We become continuous transmitters and receivers of data. In his session at @ThingsExpo, Andrew Bolwell, Director of Innovation for HP's Printing and Personal Systems Group, discussed how key attributes of mobile technology – touch input, sensors, social, and ...
Dec. 15, 2014 10:00 AM EST Reads: 1,989