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Time to Rain on the “Cloud Service Model” Parade

The Cloud community have been talking recently about Everything is a Service; they call it EaaS. At first hearing it’s an interesting idea, another acronym to complement IaaS, PaaS and SaaS. Unfortunately it’s rather like the tail wagging the dog!  The Cloud community use the term Service liberally but with minimal consistency.


It must be said that the NIST reference architecture document has been incredibly helpful in sorting out the three Cloud service models of IaaS, PaaS and SaaS. However in order to read the document you have to suspend all your knowledge and belief of services and read the document interpreting all references to service as “provision or access to some capability”. In other words as a generic IS service of some sort.


Actually most Cloud infrastructure resources are provisioned as well formed services governed by interface and SLA contracts. There are a few SaaS providers that have implemented an SOA – in compliance with generally accepted principles of loose coupling, separation etc. However most Cloud services are multi-tenant application resources with integration capabilities delivered as Web services. Yet perceived wisdom generally says that SOA is essential for Cloud!


I noted an interesting paper from Intel recently[i]; the thing that really struck me was the way the paper describes how Cloud development as the Wild West (my words), and the author is advocating ideas that amount to rediscovering the SOA wheel!

SaaS and PaaS providers are circumventing traditional enterprise architecture. Compliance and visibility has decreased. Simply put, your enterprise is likely already part of the app economy. The question is, how are you managing your API traffic? Do you have a control point to manage that participation? Enterprise APIs are not science projects; they’re conducting enterprise-class business and require enterprise class visibility and control. What path can enterprises take to prepare for secure use of APIs? Dan Woods, Chief Analyst, CITO Research and Colleagues, May 2012

And the author goes on to describe how Cloud needs to move beyond point to point integration to introduce something that sounds very much like an ESB! So the notion that de facto Cloud practices should form the basis for EaaS sounds fanciful.


Yet despite this, I believe we should look closely at the idea of Everything as a Service. It’s the vision that CBDI and other pioneers painted years ago. What’s really required is a convergence of business and IT service concepts that would provide consistent views for all the various stakeholders in both IT and business domains including the service owner, business service designer, IT service architect, IT service designer, service security architect, provider, IT service manager, service broker, service consumer and so on and so forth. Today we have disparate service models in both business and IT that positively encourage silo disciplines.


To produce some form of unified service model wouldn’t be just an academic exercise.  First it might just facilitate better understanding of service architecture across business and IT stakeholders. Second it might assist in better service design, delivered services that are fully integrated with people, product, process and technology and engineered to deliver individualized services to customers that are architected to be responsive to business change!


But the place to start is to understand the needs and opportunities in a unified service model. This will leverage the Cloud, and hopefully cause more service owners to demand their services are first class software services in order to deliver better customer service. Maybe this will encourage NIST to revisit its reference architecture and give the service perspective a little more integrity.


In this month’s CBDI Journal we publish an article exploring how such a unified model might look, and the business value that it might deliver. We welcome feedback and comments.


Abstract: The Cloud movement is discussing the term Everything as a Service (EaaS or XaaS).  In principle this is a welcome development, encouraging business and IT participants to adopt services and service oriented concepts everywhere. However it appears that the E/XaaS initiative may be more about marketing than reality. In this article we suggest how this very promising idea might be developed to clarify Cloud Service taxonomy and deliver convergence of business and IT perspectives in a Unified Service Model.   

How not to do social-business

At the Dachis Social Business Summit, one of the presenters, from Forrester, showed off their notion of the Always-Addressable Customer – combining geolocation and mobile to tailored marketing-messages. The presenter was clearly excited about it, and the two examples she showed

The Next Big Leap: Everything is a Business Service

Since the 1970s, authors like Alvin Toffler[1], Daniel Bell[2] and John Naisbitt[3] have predicted the post-industrial society. They forecast the end of the industrial era and the dominance of services and information. This is not a new message[6]; the entire service provider industry has reformed around this idea, and in the USA today non-manufacturing industries account for almost 90 percent of the economy. Virtually every product today has a service component to it and many products have been transformed into services.

One of the most interesting examples of this is the Amazon Kindle service which provides an integrated front end to a wide range of Amazon services. The Kindle service optimizes purchases of books plus access to library and new services and automatically synchronizes all the devices the user may use to access the services including the Kindle reader, smart phone and browser.

Amazon was a pioneer in use of Web services. They are well known for their internal policy of mandating that all Amazon systems functionality should be created as externalized services – that is ready for use directly by customers, and this has clearly been at the heart of their considerable success.

However few large enterprises are able to operate in such an agile manner. Amazon was built from the ground up to be an IT enabled business. In larger enterprises generally there is weaker connection between business and IT, plus the challenges of legacy application and infrastructure base and typically immature (application) service portfolios. And we can all observe the archetypical enterprise is becoming even more complex with pressing demands to respond to major market trends including mobile device based processes, analytics and real time business intelligence driven process behaviour. In this frenetic environment, how can we avoid purely tactical responses which simply generate more complexity and legacy?

CBDI suggested the answer to this problem over ten years ago. The basic service model provides an efficient and effective architecture that enables reusable capabilities that limit complexity and enable continuous change through separation of concerns. However to be truly effective the service model needs to be integrated into the entire business ecosystem where EVERYTHING IS A BUSINESS SERVICE where, like Amazon, all business capabilities are published as integral components of product and service delivery. To achieve this, the service model must be expanded way beyond the prevailing technology centric SOA approach and become an holistic business service centric model subsuming PEOPLE, PROCESS AND TECHNOLOGY.

Of course there will be decoupling between business services and software services; it will be vital that business services are formed from reusable, common software services that can be rapidly assembled into new business processes to allow rapid response to changing business needs.

Of course this all sounds very fine, but most readers will ask the key question “how do we manage the transformation to a service based enterprise?”  There are so many cultural, political, budgetary and legacy challenges that will stop such an endeavour in its tracks. Most business managers have already dismissed SOA as a technical exercise and remain focused on delivery of urgent business programs. Frankly this is THE CHALLENGE. We all read fine statements from F500 CIOs and CEOs who boast about their transformations, but in practice business as usual perpetuates conventional separation of business and IT.  We have to communicate this from the rooftops!

Some ten years ago CBDI defined a maturity model and roadmap approach that showed how SOA capability maturity moves through the stages of Early Learning, Applied, Integration, Enterprise and Ecosystem. Since then this methodology has been used by many large corporations worldwide, including notably Intel Corp[4]. In the Ecosystem maturity stage the service portfolio is integrated with business concepts and federated both internally and externally. However few enterprises have achieved this level of maturity. Amazon is a rare exception.

Many enterprises are embracing Cloud computing recognizing this architecture can introduce a critical level of virtualization and agility. In recent months there has been much interest in moving Cloud to the next level referred to as Everything as a Service (EaaS or XaaS).  HP, just one of the service providers making moves in this space defines this as Through the cloud, everything will be delivered as a service, from computing power to business processes to personal interactions[5].” This is a very significant advance, however we need to emphasize that Cloud EaaS is a technology centric model, and there’s considerable effort required to integrate with the broader business and IT to avoid yet more legacy.

 

A first step in making this level of transformation is to establish a reference architecture that is entirely service based, spanning business and IT. Frankly existing reference architecture efforts such as TOGAF, OASIS, Zachman etc are not helpful in this area. Rather the service reference architecture needs to provide a mapping to a multiplicity of (stakeholder) views identifying key elements of pattern, standard and policy to ensure appropriate levels of consistency and governance.
Each of the views should also be documented in reference architecture, enterprise architecture, solution architecture and analytics levels of abstraction. You may be wondering why analytics? This represents a further level of cross cutting solution abstraction.
As discussed the reference and enterprise architecture views should be developed to achieve the minimum necessary level of consistency relevant to the business strategy context. 

Everything is a Business Service is the next big leap. Enterprises who have established effective SOA environments will be well positioned to make this move, but recognize it’s going to be yet more steps along a much longer journey than we CBDI articulated in our research 15 years ago.

  [1] Future Shock

  [2] The Coming of Post-Industrial Society

  [3] Megatrends

  [4] Service Oriented Architecture Demystified, Intel Press 2007

  [5] http://www.hp.com/hpinfo/initiatives/eaas/index.html