Click here to close now.

Welcome!

Web 2.0 Authors: Alena Prokharchyk, Carmen Gonzalez, Hovhannes Avoyan, Pat Romanski, Yeshim Deniz

Related Topics: Microservices Journal, XML

Microservices Journal: Article

Agile SOA Governance in SMEs

While we need governance processes to make SOA work, the purpose of SOA is to help IT deliver value to the enterprise

The increased manageability, reliability, and opportunities for reuse promised by a SOA can only be fulfilled with an effective governance structure in place to coordinate service creation, maintenance, provisioning, and consumption.

However, many small and medium-sized organizations struggle when starting their service catalog due to the seeming contradiction between the strategic benefits of SOA and the often negative impact that governance can have on individual line-of-business project schedules. How do we get our projects done while building a service portfolio? This article proposes governance structures that embrace the tactical, project-centric nature of much of our work while acknowledging the strategic importance of services.

The Need for Governance
By definition, services are intended to be shared resources. Sharing resources among stakeholders without a system to govern their use can and often does lead to conflicts over resource management and utilization. Services need to be governed effectively to keep ROI high (e.g., by preventing the re-creation of the wheel) and meet SLAs (e.g., by ensuring that services are provisioned with appropriate computing resources to fulfill the needs of their consumers). Governance also enables enterprises to discover new service requirements and adapt to change.

The Need to Deliver
While we need governance processes to make SOA work, the purpose of SOA is to help IT deliver value to the enterprise. However, the enterprise generates revenue (or other value) through its lines of business (LOBs). It's fair to say that LOBs are the engines of the enterprise and technology projects are merely one of the means at their disposal to accomplish this end. Given this direct linkage to the enterprise's most visible efforts, the timely completion of LOB technology projects is critical.

Some books and articles on SOA suggest a complete realignment of the business in order to drive the efficiencies promised by service orientation. In this way of thinking, all development projects should be pipelined through a SOA governance process that enforces standards and ensures the quality of the architecture as the portfolio grows and changes.

Unfortunately, this approach often makes the incorrect assumption that there is no architectural governance in place already - whether formal or informal. Any new governance process must find its place within the already crowded landscape of formal and informal means of controlling technology projects in any enterprise, many of which have grown organically over time, compete for control, and perhaps impede project delivery to an extent not warranted by the value they add.

For small and medium-sized enterprises (SMEs), this may be especially problematic because they may not have the resources to staff such a process in a way that achieves its intent while enabling LOBs to execute their projects on time. Maybe they can't staff a distinct services team. Maybe they don't have enough architects to review every development activity without bringing development screeching to a halt. As a result, the SOA implementation may be undermined as LOBs lose confidence in the long-term vision of reduced costs and increased productivity. They ask the valid question of whether the current delays are having a bottom-line impact that may not be recovered until after SOA is replaced by the next IT buzzword. They haven't heard about Cloud Computing yet... shhhh.

If we assume that development teams are already delivering value to the LOBs they support then they are designing software that works well for the purposes of the LOB but may not be usable by other LOB development teams because it is tightly coupled, lacks the ability to scale, etc. The fact that this is inefficient at the enterprise level is not readily apparent to the LOB. These development teams are not necessarily looking for opportunities to deliver value to the enterprise - they are focused on their LOB. The perceived value of their work is high. Slowing down delivery of development projects to resolve an enterprise-level inefficiency is unlikely to be popular with the LOBs.

Approaches to resolving this dilemma typically involve driving change from the top and parallelizing all service development into a separate specialized team. This is rational and capitalizes on popular approaches to increasing development throughput (if ignoring Brooks' Law). With the CXOs on board, one would expect the outcome to be a well-resourced services team standing at the ready whenever needed to implement services in support of the main development team's efforts. However, the mission of this team is not to provide the best results for the LOB, but for the enterprise. To achieve this, the services team needs to be strategic in its creation of services. It must take the requirements of a given LOB team and research them to determine if they are already generic enough to work for other teams. It must assess the scalability and manageability issues of the service across consumers. In short, it must be careful. Being careful takes time. In a small enterprise, projects have short delivery timelines - often less than a year, very frequently one business quarter or less. How can the services team serve the mission of being careful while delivering in short timeframes?

Make It Work, Make It Right, Make It Fast
The job of governance is to help identify opportunities for increasing efficiency in the development of software across the enterprise. While the enterprise needs governance to help it realize the full value of a Service Oriented Architecture, we need to ensure that the governance is enabling not limiting. The focus should not be on preventing mistakes, but on encouraging success. Kent Beck's famous exhortation "Make it Work, Make it Right, Make it Fast" doesn't start with Make it Right because that leads to a quest for perfection in the absence of a completed work product. What if the organization identified a potential new service during the course of the normal work of a LOB development team, but allowed the team to continue its work implementing the new service for itself (perhaps even as a library) while tasking another team to determine whether the function(s) were worth expending the effort to turn into a service and planning that work? From the enterprise perspective, we would be starting to Make It Right even while the LOB was getting started Making It Work. This seems like the best of both worlds.

Unfortunately, many governance models serialize the processes of governance and development - governance is a gate through which all projects (or even ideas) must pass. The creation or modification of a service has an enterprise impact and so must be carefully considered. It can get crowded at this gate and projects needed by the LOB can get stuck there while the governance team debates the merits of the project functions in relation to the SOA.

When the services have been identified, it is a common recommendation to pass the service requirements on to a team specializing in service creation / maintenance / management. This is another potential bottleneck as the delivery of services to the main project must be carefully coordinated to ensure the project delivers on time. A quality enterprise service that considers the needs of multiple stakeholders can take as long to design, implement, and test as the main project.

Agile SOA Governance
There is without doubt merit in both of the core concepts commonly presented in the context of SOA: the need for governance to coordinate on services; and the advantages of creating a team with skills and experience to focus on services. The problem is in the process that manages work across these expert groups and the line-of-business development teams. Figures 1-3 present alternative approaches to this flow.

In all of the alternatives presented, requirements are collected and passed through the filter of an architectural review panel which serves the governance board for services among other duties. This panel determines whether the project incorporates concepts that appear to be candidates for services. Some of these will have already been created and are planned for use in the project. Some will have already been created, but their use was overlooked by the analysis team. Still others will be candidates for the creation or modification of a service.

This review is meant to be light so as not to impede the flow of development as we make the assumption that we should first Make It Work and that opportunities to Make It Right and Fast will exist down the road. What happens after this filter determines how rapidly the project can be delivered and I would assert how successful the adoption of SOA will be in the enterprise.

Figure 1 presents a fairly conventional linear approach to the problem. If a service exists, its use is required and fed into the design phase of the relevant LOB development iteration. If it does not exist or is inadequate in its current form, the requirements are fed to the services team, which then goes through a standard development cycle of elaborating on the requirements in the enterprise context, designing a solution, developing and testing it, and finally deploying it for incorporation into the LOB development cycle. This can be problematic if the service is fundamental to the application, and development of other parts of the software is dependent on understanding and utilizing the service. The problem arises from the fact that the LOB development team is not aware of the service interface and other characteristics until the completion of the service project. Without careful planning, this may have the impact of serializing the services project and the LOB project, thereby undermining the intended effect of a separate services team.

Figure 2 takes the problem of late information and deals with it by providing earlier communication between the services and LOB teams. In this approach, the LOB team receives the planned interface for the service from the services team after it completes its design phase. Depending on approach, it may get more than just the interface. For example, it may get mocks, stubs, or tests as well. All of these things will help it move forward in developing the software in its system that depends on the service, thus decreasing the bottleneck effect. If during implementation, the interface needs to change, that should be communicated to facilitate the refactoring of dependent code. If the LOB team develops a local proxy or business delegate, this should make it easier to refactor. Later, when the service is fully implemented, integration testing can be performed. Nevertheless, the final integration testing and deployment are dependent on the completion of the services team's work. While we have provided more information earlier, allowing for a more adaptive and accurate approach to concurrent development, the enterprise work may still delay the LOB work.

The final approach depicted in Figure 3 assumes that the LOB development team can develop either a service or library itself locally that satisfies its needs for project work to proceed rapidly without dependencies across teams. Ideally, it will anticipate the creation of a service that will replace its local implementation and hide its implementation behind a business delegate. Whenever the services team completes its work, the LOB team should refactor to replace its implementation with the service. Communication between teams about evolving interface definitions will minimize later rework.

While the final approach is inefficient from the perspective that we have two teams concurrently working on developing very similar functions, both anticipate fulfilling the SOA vision. They understand that this is a tactical decision that minimizes the schedule risk of the LOB while enabling the enterprise to move in the direction of its strategic objectives.

On a project-to-project basis, organizations have to determine which of these processes is appropriate. Some enterprise services are more rapidly developed than others. The capabilities of development teams vary. The impact of a service on the application will depend on how core it is to the application. All of these variables factor into the decision-making process and help the organization devise the best approach.

More Stories By Chip Temm

Over the past decade, Chip Temm moved from North America to Europe and on to Africa where his company anthroLogik solutions provided analysis and development services organizations across seven timezones. He is currently back in Washington, DC where "remote development" means working from home and "wildlife" means raccoon.

Comments (0)

Share your thoughts on this story.

Add your comment
You must be signed in to add a comment. Sign-in | Register

In accordance with our Comment Policy, we encourage comments that are on topic, relevant and to-the-point. We will remove comments that include profanity, personal attacks, racial slurs, threats of violence, or other inappropriate material that violates our Terms and Conditions, and will block users who make repeated violations. We ask all readers to expect diversity of opinion and to treat one another with dignity and respect.


@ThingsExpo Stories
As enterprises move to all-IP networks and cloud-based applications, communications service providers (CSPs) – facing increased competition from over-the-top providers delivering content via the Internet and independently of CSPs – must be able to offer seamless cloud-based communication and collaboration solutions that can scale for small, midsize, and large enterprises, as well as public sector organizations, in order to keep and grow market share. The latest version of Oracle Communications Unified Communications Suite gives CSPs the capability to do just that. In addition, its integration ...
SYS-CON Events announced today that Litmus Automation 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. Litmus Automation’s vision is to provide a solution for companies that are in a rush to embrace the disruptive Internet of Things technology and leverage it for real business challenges. Litmus Automation simplifies the complexity of connected devices applications with Loop, a secure and scalable cloud platform.
In 2015, 4.9 billion connected "things" will be in use. By 2020, Gartner forecasts this amount to be 25 billion, a 410 percent increase in just five years. How will businesses handle this rapid growth of data? Hadoop will continue to improve its technology to meet business demands, by enabling businesses to access/analyze data in real time, when and where they need it. Cloudera's Chief Technologist, Eli Collins, will discuss how Big Data is keeping up with today's data demands and how in the future, data and analytics will be pervasive, embedded into every workflow, application and infra...
As Marc Andreessen says software is eating the world. Everything is rapidly moving toward being software-defined – from our phones and cars through our washing machines to the datacenter. However, there are larger challenges when implementing software defined on a larger scale - when building software defined infrastructure. In his session at 16th Cloud Expo, Boyan Ivanov, CEO of StorPool, will provide some practical insights on what, how and why when implementing "software-defined" in the datacenter.
SYS-CON Media announced today that @ThingsExpo Blog launched with 7,788 original stories. @ThingsExpo Blog offers top articles, news stories, and blog posts from the world's well-known experts and guarantees better exposure for its authors than any other publication. @ThingsExpo Blog can be bookmarked. 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.
The world's leading Cloud event, Cloud Expo has launched Microservices Journal on the SYS-CON.com portal, featuring over 19,000 original articles, news stories, features, and blog entries. DevOps Journal is focused on this critical enterprise IT topic in the world of cloud computing. Microservices Journal offers top articles, news stories, and blog posts from the world's well-known experts and guarantees better exposure for its authors than any other publication. Follow new article posts on Twitter at @MicroservicesE
SYS-CON Events announced today that robomq.io will exhibit at SYS-CON's @ThingsExpo, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. robomq.io is an interoperable and composable platform that connects any device to any application. It helps systems integrators and the solution providers build new and innovative products and service for industries requiring monitoring or intelligence from devices and sensors.
Wearable technology was dominant at this year’s International Consumer Electronics Show (CES) , and MWC was no exception to this trend. New versions of favorites, such as the Samsung Gear (three new products were released: the Gear 2, the Gear 2 Neo and the Gear Fit), shared the limelight with new wearables like Pebble Time Steel (the new premium version of the company’s previously released smartwatch) and the LG Watch Urbane. The most dramatic difference at MWC was an emphasis on presenting wearables as fashion accessories and moving away from the original clunky technology associated with t...
So I guess we’ve officially entered a new era of lean and mean. I say this with the announcement of Ubuntu Snappy Core, “designed for lightweight cloud container hosts running Docker and for smart devices,” according to Canonical. “Snappy Ubuntu Core is the smallest Ubuntu available, designed for security and efficiency in devices or on the cloud.” This first version of Snappy Ubuntu Core features secure app containment and Docker 1.6 (1.5 in main release), is available on public clouds, and for ARM and x86 devices on several IoT boards. It’s a Trend! This announcement comes just as...
SYS-CON Events announced today that Vicom Computer Services, Inc., a provider of technology and service 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. They are located at booth #427. Vicom Computer Services, Inc. is a progressive leader in the technology industry for over 30 years. Headquartered in the NY Metropolitan area. Vicom provides products and services based on today’s requirements around Unified Networks, Cloud Computing strategies, Virtualization around Software defined Data Ce...
The only place to be June 9-11 is Cloud Expo & @ThingsExpo 2015 East at the Javits Center in New York City. Join us there as delegates from all over the world come to listen to and engage with speakers & sponsors from the leading Cloud Computing, IoT & Big Data companies. Cloud Expo & @ThingsExpo are the leading events covering the booming market of Cloud Computing, IoT & Big Data for the enterprise. Speakers from all over the world will be hand-picked for their ability to explore the economic strategies that utility/cloud computing provides. Whether public, private, or in a hybrid form, clo...
Internet of Things (IoT) will be a hybrid ecosystem of diverse devices and sensors collaborating with operational and enterprise systems to create the next big application. In their session at @ThingsExpo, Bramh Gupta, founder and CEO of robomq.io, and Fred Yatzeck, principal architect leading product development at robomq.io, will discuss how choosing the right middleware and integration strategy from the get-go will enable IoT solution developers to adapt and grow with the industry, while at the same time reduce Time to Market (TTM) by using plug and play capabilities offered by a robust I...
IoT is still a vague buzzword for many people. In his session at @ThingsExpo, Mike Kavis, Vice President & Principal Cloud Architect at Cloud Technology Partners, discussed the business value of IoT that goes far beyond the general public's perception that IoT is all about wearables and home consumer services. He also discussed how IoT is perceived by investors and how venture capitalist access this space. Other topics discussed were barriers to success, what is new, what is old, and what the future may hold. Mike Kavis is Vice President & Principal Cloud Architect at Cloud Technology Pa...
From telemedicine to smart cars, digital homes and industrial monitoring, the explosive growth of IoT has created exciting new business opportunities for real time calls and messaging. In his session at @ThingsExpo, Ivelin Ivanov, CEO and Co-Founder of Telestax, shared some of the new revenue sources that IoT created for Restcomm – the open source telephony platform from Telestax. Ivelin Ivanov is a technology entrepreneur who founded Mobicents, an Open Source VoIP Platform, to help create, deploy, and manage applications integrating voice, video and data. He is the co-founder of TeleStax, a...
@ThingsExpo has been named the Top 5 Most Influential Internet of Things Brand by Onalytica in the ‘The Internet of Things Landscape 2015: Top 100 Individuals and Brands.' Onalytica analyzed Twitter conversations around the #IoT debate to uncover the most influential brands and individuals driving the conversation. Onalytica captured data from 56,224 users. The PageRank based methodology they use to extract influencers on a particular topic (tweets mentioning #InternetofThings or #IoT in this case) takes into account the number and quality of contextual references that a user receives.
Buzzword alert: Microservices and IoT at a DevOps conference? What could possibly go wrong? Join this panel of experts as they peel away the buzz and discuss the important architectural principles behind implementing IoT solutions for the enterprise. As remote IoT devices and sensors become increasingly intelligent, they become part of our distributed cloud environment, and we must architect and code accordingly. At the very least, you’ll have no problem filling in your buzzword bingo cards.
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 configurable to any form factor or custom configuration. AIC leads the industry with nearly 20 years of ...
How is unified communications transforming the way businesses operate? In his session at WebRTC Summit, Arvind Rangarajan, Director of Product Marketing at BroadSoft, will discuss how to extend unified communications experience outside the enterprise through WebRTC. He will also review use cases across different industry verticals. Arvind Rangarajan is Director, Product Marketing at BroadSoft. He has over 19 years of experience in the telecommunications industry in various roles such as Software Development, Product Management and Product Marketing, applied across Wireless, Unified Communic...
SYS-CON Events announced today the IoT Bootcamp – Jumpstart Your IoT Strategy, being held June 9–10, 2015, in conjunction with 16th Cloud Expo and Internet of @ThingsExpo at the Javits Center in New York City. This is your chance to jumpstart your IoT strategy. Combined with real-world scenarios and use cases, the IoT Bootcamp is not just based on presentations but includes hands-on demos and walkthroughs. We will introduce you to a variety of Do-It-Yourself IoT platforms including Arduino, Raspberry Pi, BeagleBone, Spark and Intel Edison. You will also get an overview of cloud technologies s...
Containers and microservices have become topics of intense interest throughout the cloud developer and enterprise IT communities. Accordingly, attendees at the upcoming 16th Cloud Expo at the Javits Center in New York June 9-11 will find fresh new content in a new track called PaaS | Containers & Microservices Containers are not being considered for the first time by the cloud community, but a current era of re-consideration has pushed them to the top of the cloud agenda. With the launch of Docker's initial release in March of 2013, interest was revved up several notches. Then late last...