|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.
I wanted to gather all of my Internet of Things (IOT) blogs into a single blog (that I could later use with my University of San Francisco (USF) Big Data “MBA” course). However as I started to pull these blogs together, I realized that my IOT discussion lacked a vision; it lacked an end point towards which an organization could drive their IOT envisioning, proof of value, app dev, data engineering and data science efforts. And I think that the IOT end point is really quite simple…
Aug. 27, 2016 12:45 PM EDT Reads: 2,331
Internet of @ThingsExpo, taking place November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 19th Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The Internet of Things (IoT) is the most profound change in personal and enterprise IT since the creation of the Worldwide Web more than 20 years ago. All major researchers estimate there will be tens of billions devices - comp...
Aug. 27, 2016 12:30 PM EDT Reads: 3,608
The 19th International Cloud Expo has announced that its Call for Papers is open. Cloud Expo, to be held November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, brings together Cloud Computing, Big Data, Internet of Things, DevOps, Digital Transformation, Microservices and WebRTC to one location. With cloud computing driving a higher percentage of enterprise IT budgets every year, it becomes increasingly important to plant your flag in this fast-expanding business opportuni...
Aug. 27, 2016 11:00 AM EDT Reads: 3,964
DevOps at Cloud Expo, taking place Nov 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 19th Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. 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 dev...
Aug. 27, 2016 11:00 AM EDT Reads: 2,347
Data is the fuel that drives the machine learning algorithmic engines and ultimately provides the business value. In his session at Cloud Expo, Ed Featherston, a director and senior enterprise architect at Collaborative Consulting, will discuss the key considerations around quality, volume, timeliness, and pedigree that must be dealt with in order to properly fuel that engine.
Aug. 27, 2016 10:15 AM EDT Reads: 1,891
Pulzze Systems was happy to participate in such a premier event and thankful to be receiving the winning investment and global network support from G-Startup Worldwide. It is an exciting time for Pulzze to showcase the effectiveness of innovative technologies and enable them to make the world smarter and better. The reputable contest is held to identify promising startups around the globe that are assured to change the world through their innovative products and disruptive technologies. There w...
Aug. 27, 2016 07:45 AM EDT Reads: 667
Today we can collect lots and lots of performance data. We build beautiful dashboards and even have fancy query languages to access and transform the data. Still performance data is a secret language only a couple of people understand. The more business becomes digital the more stakeholders are interested in this data including how it relates to business. Some of these people have never used a monitoring tool before. They have a question on their mind like “How is my application doing” but no id...
Aug. 27, 2016 03:15 AM EDT Reads: 1,781
Personalization has long been the holy grail of marketing. Simply stated, communicate the most relevant offer to the right person and you will increase sales. To achieve this, you must understand the individual. Consequently, digital marketers developed many ways to gather and leverage customer information to deliver targeted experiences. In his session at @ThingsExpo, Lou Casal, Founder and Principal Consultant at Practicala, discussed how the Internet of Things (IoT) has accelerated our abil...
Aug. 27, 2016 02:30 AM EDT Reads: 2,005
With so much going on in this space you could be forgiven for thinking you were always working with yesterday’s technologies. So much change, so quickly. What do you do if you have to build a solution from the ground up that is expected to live in the field for at least 5-10 years? This is the challenge we faced when we looked to refresh our existing 10-year-old custom hardware stack to measure the fullness of trash cans and compactors.
Aug. 27, 2016 01:45 AM EDT Reads: 1,737
The emerging Internet of Everything creates tremendous new opportunities for customer engagement and business model innovation. However, enterprises must overcome a number of critical challenges to bring these new solutions to market. In his session at @ThingsExpo, Michael Martin, CTO/CIO at nfrastructure, outlined these key challenges and recommended approaches for overcoming them to achieve speed and agility in the design, development and implementation of Internet of Everything solutions wi...
Aug. 27, 2016 01:15 AM EDT Reads: 2,018
Cloud computing is being adopted in one form or another by 94% of enterprises today. Tens of billions of new devices are being connected to The Internet of Things. And Big Data is driving this bus. An exponential increase is expected in the amount of information being processed, managed, analyzed, and acted upon by enterprise IT. This amazing is not part of some distant future - it is happening today. One report shows a 650% increase in enterprise data by 2020. Other estimates are even higher....
Aug. 27, 2016 12:45 AM EDT Reads: 2,944
SYS-CON Events announced today that 910Telecom will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Housed in the classic Denver Gas & Electric Building, 910 15th St., 910Telecom is a carrier-neutral telecom hotel located in the heart of Denver. Adjacent to CenturyLink, AT&T, and Denver Main, 910Telecom offers connectivity to all major carriers, Internet service providers, Internet backbones and ...
Aug. 26, 2016 10:00 PM EDT Reads: 1,864
SYS-CON Events announced today Telecom Reseller has been named “Media Sponsor” of SYS-CON's 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Telecom Reseller reports on Unified Communications, UCaaS, BPaaS for enterprise and SMBs. They report extensively on both customer premises based solutions such as IP-PBX as well as cloud based and hosted platforms.
Aug. 26, 2016 07:00 PM EDT Reads: 699
Smart Cities are here to stay, but for their promise to be delivered, the data they produce must not be put in new siloes. In his session at @ThingsExpo, Mathias Herberts, Co-founder and CTO of Cityzen Data, will deep dive into best practices that will ensure a successful smart city journey.
Aug. 26, 2016 04:45 PM EDT Reads: 1,557
There is growing need for data-driven applications and the need for digital platforms to build these apps. In his session at 19th Cloud Expo, Muddu Sudhakar, VP and GM of Security & IoT at Splunk, will cover different PaaS solutions and Big Data platforms that are available to build applications. In addition, AI and machine learning are creating new requirements that developers need in the building of next-gen apps. The next-generation digital platforms have some of the past platform needs a...
Aug. 26, 2016 03:15 PM EDT Reads: 520
19th Cloud Expo, taking place November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, will feature technical sessions from a rock star conference faculty and the leading industry players in the world. Cloud computing is now being embraced by a majority of enterprises of all sizes. Yesterday's debate about public vs. private has transformed into the reality of hybrid cloud: a recent survey shows that 74% of enterprises have a hybrid cloud strategy. Meanwhile, 94% of enterpri...
Aug. 26, 2016 05:00 AM EDT Reads: 3,072
Identity is in everything and customers are looking to their providers to ensure the security of their identities, transactions and data. With the increased reliance on cloud-based services, service providers must build security and trust into their offerings, adding value to customers and improving the user experience. Making identity, security and privacy easy for customers provides a unique advantage over the competition.
Aug. 25, 2016 09:15 PM EDT Reads: 2,253
Is the ongoing quest for agility in the data center forcing you to evaluate how to be a part of infrastructure automation efforts? As organizations evolve toward bimodal IT operations, they are embracing new service delivery models and leveraging virtualization to increase infrastructure agility. Therefore, the network must evolve in parallel to become equally agile. Read this essential piece of Gartner research for recommendations on achieving greater agility.
Aug. 25, 2016 05:15 PM EDT Reads: 811
SYS-CON Events announced today that Venafi, the Immune System for the Internet™ and the leading provider of Next Generation Trust Protection, will exhibit at @DevOpsSummit at 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Venafi is the Immune System for the Internet™ that protects the foundation of all cybersecurity – cryptographic keys and digital certificates – so they can’t be misused by bad guys in attacks...
Aug. 25, 2016 01:00 PM EDT Reads: 2,645
For basic one-to-one voice or video calling solutions, WebRTC has proven to be a very powerful technology. Although WebRTC’s core functionality is to provide secure, real-time p2p media streaming, leveraging native platform features and server-side components brings up new communication capabilities for web and native mobile applications, allowing for advanced multi-user use cases such as video broadcasting, conferencing, and media recording.
Aug. 25, 2016 08:45 AM EDT Reads: 2,173