The document discusses cloud interoperability and standards. It defines interoperability as the ability of cloud systems to exchange data and information. This allows applications and workloads to seamlessly move between cloud platforms. The document outlines motivations for interoperability such as customer choice, competition, and innovation. It also discusses functional scope, policy objectives, use cases, and enabling user access across clouds through standards.

1. CLOUD INTEROPERABILITYCLOUD INTEROPERABILITY
ANDAND
IT’S STANDARDSIT’S STANDARDS

2. What is Interoperability?What is Interoperability?
 The ability of IT systems, as well as the business processes they
support, to exchange data and enable the sharing of information and
knowledge – UK Govt definition
 Interoperability means enabling the Cloud ecosystem so that multiple
cloud platforms can exchange information
 Interoperability means being able to seamlessly exchange data at
different layers between cloud service providers
 Interoperability is the capability of two systems understanding each
others’ intents in exchange of communications
 Interoperability is an enabler for interchange ability (replacement of
one element with another)
 Interoperability is the goal of standards but standards do not
guarantee interoperability
 You can achieve interoperability without standards
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3. What is InteroperabilityWhat is Interoperability
Interoperability is an enabler for portability (at some
level interoperability is portability)
◦ Portability refers to the ability to port the layer above
◦ Paas portability is needed when moving apps
Interoperability refers to provisioning within the
layer itself – Saas-to-Saas interoperability occurs
between apps
Why is interoperability different in a cloud
ecosystem compared to normal software
development?
Motivations for interoperability:
◦ 1. To increase customer choice, competition and innovation
◦ 2. To allow more players in the market
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4. Policy Objectives (background information)Policy Objectives (background information)
Right to move applications between Cloud providers
Right to port data (quickly) between Cloud providers
Right of user to own their data
Keep overhead of certification and compliance to a
minimum
Apply open access/open source policies that allow
extension of APIs and specs
Demand side: Interoperability between Cloud
services from different providers to prevent vendor
lock-in
Open and flexible market to provide choice for
consumers
Transparency and technology neutrality
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5. Functional scopeFunctional scope
 Interoperability within the context of Cloud Computing
means enabling the Cloud Computing Ecosystem whereby
individuals and organizations are able to widely adopt Cloud
Computing technology and related services in such a fashion
that multiple Cloud platforms can exchange information in a
unified manor and ultimately work together seamlessly.
 Examples of such interoperability are e.g. solutions running
on multiple disparate Cloud instances and use of resources
in other heterogeneous Cloud instances.
 To realize this desired Interoperability, standards are
required at all levels, e.g. infrastructure, platform, application,
service, data and management.
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6. Use Cases (1)Use Cases (1)
 User of one Cloud accessing storage in another Cloud (to provide elastic
storage)
 Applications and services running on (and communicating between)
heterogeneous cloud platforms
 Application using resources (CPU, storage) in another heterogeneous cloud
platform (resource bursting)
 Resource sharing across different time zones
 Demonstration of data portability (across Service Providers)
 What is needed to transfer a running STATEFULL service from Cloud
Provider A to B?
◦ Moving a file sharing service between Cloud providers
◦ Moving a streaming service between Cloud providers
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7. Use CasesUse Cases
B2B (or Govt) procurement from Buyer Cloud vs.
Supplier Cloud
End customer (SME) going through broker (IT
Provider) to Cloud
Move of on-premise server to/from public, private or
hybrid Cloud
Multi-operator or multi-service provider
conferencing
Demonstration of need for integration/federation of
Clouds
Demonstration of use of Trans-National / Trans-
Regional Clouds
VM Govt (G-Cloud) – universal service for Govt staff
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8. Use Case: User AccessUse Case: User Access
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Cloud a Cloud b
User
Access Networks
NNI
a. Direct User to Remote Service
b. Bring Service to User