Is Cloud relevant for SOA?

Is Cloud relevant for SOA?

2014-06-12 - Corsin Decurtins

Abstract

SOA (Service-Orientierte Architektur) war vor einigen Jahren ein absolutes Hype-Thema in Unternehmen. Mittlerweile ist es aber sehr viel ruhiger darum geworden. Die Erfolgsbilanz ist denn auch sehr durchzogen. Einige Unternehmen haben die Umstellung auf SOA geschafft, andere sind kläglich damit gescheitert.

Und nun kommt die Cloud... Der Druck auf IT-Organisationen Cloud-Dienstleistungen zu integrieren und eigene Services in die Cloud auszulagern nimmt stetig zu. Und SOA ist die Basis dafür. Doch sind die Unternehmen mit ihren IT-Organisationen und -Architekturen bereit für den Schritt in die Cloud? Oder wird die Cloud ihnen den Todesstoss versetzen? In diesem Einführungsvortrag wollen wir darüber sprechen, was sind die grossen Risiken und Erfolgsfaktoren sind für eine Integration von Cloud-Dienstleistungen in die Service-Orientierte Architektur von Unternehmen.

Service-Oriented

Architecture

Service-Oriented Architecture

Big hype topic a couple of years ago SOA was predicted to be the future for the organization Everybody was talking about SOA, everybody was moving to SOA Organizations invested a lot of time and money into SOA

What is SOA about?

Decomposition

Encapsulation

Interfaces

What is SOA about?

Decomposition Business logic and data of an enterprise is decomposed into services Decomposition is based on what a service provides, not on how it is used and by

whom Encapsulation The service is the only means to access the data and functionality Interfaces Functionality and data is made availabe through well defined interfaces Interfaces are available through the network, i.e. remote access

Why are we doing this?

Composition

Decoupling

Flexibility

Why are we doing this?

Composition Build applications based on a service landscape Applications are more fragile than the services Faster creation of applications, due to the reuse of services Decoupling Decouple applications, particularly frontends and service providers Independent evolution Flexibility Decoupling of service consumers and providers allows for more flexibility Service implementations can be changed without affecting the consumers

SOA State of the Union

SOA State of the Union

Very mixed track record Some organizations have succeeded with the SOA strategy A lot of organizations have basically failed SOA has a lot of challenges that are not technical organizational legal security / privacy reliability

SOA and the Cloud

Service as a Service

SOA and the Cloud

Perfect match Using services from the Cloud in an enterprise's SOA is the logical continuation The Cloud offers even more flexibility to the enterprise Make vs. Buy !SOA is the basis for using the Cloud in the enterprise The pressure to include Cloud services is growing

Challenges and Risks

Non-Cloud SOA

Challenges and Risks

!

… but a lot worse

Non-Cloud SOA Challenges and Risks

a SOA has the same challenges and risks whether a services is provided in-house or in the Cloud

the Cloud actually makes the existing challenges and risks even worse less control over the provider more independent parties involved same for all different types of challenges and risks technical and architectural legal operational privacy and security access control …

New Challenges and Risks

Privacy

Security

Privacy / Security

organizations are entrusting 3rd party providers with their data data of their customers privacy and security are crucial … and out of control of the organization core idea of the cloud is virtualization and abstraction users are not supposed to care where, how and by whom the service is provided but organizations do and have to care about this cloud providers have to be able to guarantee and prove certain security and privacy

standards

Legal Aspects

Legal Aspects

I'm not a lawyer, but anyway core idea of the cloud is that you care about what service is provided, not how, where

and by whom the service is provided but the law cares about how, where and by whom data exposure: who has access to my data employees of the service provider jurisdictions that have access to any of these employees jurisdictions that have access to any of the hardware and software involved

Reliability

Reliability

trustworthiness and reliability of the service provider … and all other entities involved in the provision of the service a lot more parties are involved reliability becomes much more difficult to achieve the more parties are involved, the more difficult it is to solve problems the "more parties" does not just include all the entities in the service provisioning

chain, it also includes other parties that share resources

Wrapping up…

Yes

Make or Break

Yes

The Cloud is relevant for SOA … and the other way around Services from the cloud fit in perfectly with a well-established SOA The Cloud puts a lot of pressure on enterprises to succeed with SOA

Main challenges and risks

are not technical

Privacy and Security

are key

Some companies are ready

A lot of companies are not

Most Cloud providers

are not ready

Readiness

Some Companies are ready to include Cloud services in their SOA SOA is well-established A lot of Companies are not ready SOA is not well-established within the organization A lot of problems still exist and have to be solved The pressure to use services from the cloud could be the make or break !Most Cloud providers are not ready for the Enterprise Technical issues are not the problem Lots of incompatibilities of what Cloud providers can offer and what Enterprises

need

Chief Technology Officercorsin.decurtins@netcetera.com

Corsin Decurtins

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