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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