The document summarizes cloud computing reference architectures from NIST and IBM. It discusses why reference architectures are useful, including providing common understanding, reducing complexity, and enabling interoperability. It then provides overviews of the NIST cloud computing reference architecture, including essential cloud characteristics, service models, deployment models, and architectural components. It also summarizes the main IBM cloud computing reference architecture, focusing on roles, tools, management platforms, and portals.

1. Cloud Computing Reference
Architecture from NIST & IBM
General Discussion
Richard Kuo, Professional-Technical Architect,
Cloud Realization, New Technology Product Development Engineering

2. Why Reference Architecture
• Articulate the domain and concepts
• Provide a common vision, understanding, taxonomy
among organizations
• Effectively reduce complexity and speed up the
development of new products, product lines and
portfolio
• Provide a guideline for inter-operability and standards
• Model the functions and services of implementation
systems
• Capture and share patterns and best practices
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3. Intent
• Share study notes and exchange ideas.
• References:
– Special Publication 500-292, NIST Cloud Computing
Reference Architecture, Fang Liu, Jin Tong, Jian Mao,
Robert Bohn, John Messina, Lee Badger and Dawn Leaf.
– Introduction and Architecture Overview, IBM Cloud
Computing Reference Architecture 2.0, Michael Behrendt,
Bernard Glasner, Petra Kopp, Robert Dieckmann, Gerd
Breiter, Stefan Pappe, Heather Kreger, Ali Arsanjani
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4. Cloud Computing Reference Architecture
NIST
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5. Cloud Computing
from NIST SP800-145, September 2011
• Cloud computing is a model for enabling ubiquitous,
convenient, on-demand network access to a shared
pool of configurable computing resources (e.g.,
networks, servers, storage, applications, and
services) that can be rapidly provisioned and
released with minimal management effort or service
provider interaction.
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6. Cloud Computing Model
(from NIST SP800-145, September 2011)
Essential Characteristics: Service Models:
• On-demand self-service. • Software as Service (SaaS).
• Broad network access. • Platform as a Service (PaaS).
• Resource pooling. • Infrastructure as a Service (IaaS)
• Rapid elasticity. Deployment Models:
• Measured service. • Private cloud.
• Community cloud
• Public cloud.
• Hybrid cloud.
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7. Actors
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8. Interfaces
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9. Reference Architecture
(from NIST-500-292)
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16. Cloud Computing Reference Architecture
IBM
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17. IBM Cloud Computing Reference Architecture
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18. Main Characteristics
• Roles
– Cloud Service Consumer, Cloud Service Provider, and Cloud Service Creator.
• Tools
– Integration Tools,
– In-house IT (infrastructure, middleware, applications, business processes,
service management),
– Service Creation Tools
• Service Management Development Tools
• Software Development Tools
• Image Creation Tools
• Common Cloud Management Platform
– BSS and OSS
• Portals
– Service Consumer Portal, Service Developer Portal, and Service Provider
Portal.
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19. Business-Process as a Service (BPaaS)
• Business process services are any business process
(horizontal or vertical) delivered through the Cloud
service model (Multi-tenant, self-service
provisioning, elastic scaling and usage metering or
pricing) via the Internet with access via Web-centric
interfaces and exploiting Web-oriented cloud
architecture. The BPaaS provider is responsible for
the related business function(s).
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21. Thank You!
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