moving to cloud computing step-by-step - world...

David S. Linthicum, CTOdlinthicum@bickgroup.com@DavidLinthicum

Moving to Cloud Computing Step-by-Step

© Bick Group 2010

UNDERSTANDING THE

RELATIONSHIPS

SOA

Cloud

Computing

Enterprise

Architecture

© Bick Group 2010

SOA AND CLOUD COMPUTING

• One can consider cloud computing the extension of SOA out to cloud-delivered resources, such as storage-as-a-service, data-as-a-service, platform-as-a-service -- you get the idea.

• The trick is to determine which services, information, and processes are good candidates to reside in the clouds, as well as which cloud services should be abstracted within the existing or emerging SOA.

© Bick Group 2010

THREE LAYERS OF CLOUD

COMPUTING

Software as a Service (SaaS)Finished applications that you rent and customize

Platform as a Service (PaaS)Developer platform that abstracts the infrastructure, OS and middleware to

drive developer productivity

Infrastructure as a Service (IaaS)Deployment platform that abstracts the infrastructure

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THE "CLOUD PYRAMID"

• Describes Cloud Services Economy

• Building blocks: IaaS -> PaaS -> SaaS

Google

App Engine

Source: GoGrid

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NIST defines cloud computing as a set of characteristics, delivery models, and deployment models

On-demand self-service

Ubiquitous network access

Resource pooling

Rapid elasticity

Pay per use

5 Characteristics

Software as a Service

(SaaS)

Platform as a Service (PaaS)

Infrastructure as a Service

(IaaS)

3 Delivery Models

Private Cloud

Community Cloud

Public Cloud

Hybrid Cloud

4 Deployment Models

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“ THE CLOUD”?

Size of the cloudlets and overlap shown is not to scale

Shared application

infrastructure as a

service (AIaaS)

Application platform

as a service (APaaS)

IaaS – Integration as a

service

Off-Premises Cloud

Infrastructure Utility

Hosting

Web Hosting

SaaSAIaaS

APaaSIaaS

Cloud Platform

Native Web Applications

Hardware

managed by

others

Elastic Internet

resources

Fixed, dedicated

resourcesShared

applications

Provider-dedicated Web

applications and Web

content

Commodity

(industrialized)

computing resources

Hosted dedicated

Web applications

and Web content

Programmable or

programmatically

accessible resources

Source: Gartner Research

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Infrastructure-as-a-Service

Security-as-a-Service

Storage-as-a-Service

Integration-as-a-Service

Database-as-a-Service

Information-as-a-Service

Process-as-a-Service

ORGANIZING THE CLOUDS

Platform-as-a-Service

Application-as-a-Service

Management/Governance-as-a-Service

Testing-as-a-Service

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WHY CLOUD?THE EXISTING TRAJECTORY IS NOT GOOD

$

Capability

WHY CLOUD?

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UNDERSTANDING THE ROI

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$500,000

$1,000,000

On-Premise

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Cloud Delivered

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“For the cloud, we're all in.”

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CLOUD POPULARITY=HYPE

Source: CA

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NEED A JOB?

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CRAZY CLOUD WASHING

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FEAR OF MULTITENANCY

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© Bick Group 2010

A “Connectivity Explosion”

• Applications, formats, APIs, protocols,

standards, etc.

• Connected business partners

Connectivity neither trivial nor static:

• Incompatible structures, semantics,

business rules

• No mature standards

• Changes abound

• Not easy to create robust Web services

interfaces

Connectivity becomes more challenging than ever

Source: Pervasive Software

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Data volumes increases at an explosive rate

1 Exabyte = 1 quintillion bytes

0

20

40

60

80

100

120

140

160

180

200

2010200920082007(IDC)

Data subject to Sarbanes-Oxley, Basel II

or other governmental regulation

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© Bick Group 2010

Standalone

cloud

Cloud 1 Cloud 2

enterprise

Extended

enterpris

e cloud

Cloud 1

Cloud 3

Cloud 2

Intercloud

Cloud

Source:

Bob Grossman

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CLOUD ABSTRACTION

Cloud B

Cloud C

Cloud A

TaskRouting

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24

Local data center (small, dedicated)

Remote cloud (large, pay per use)

Dynamic Workload

User requests

User requestsWorkload factoring

HYBRID CLOUDS

Source: NEC

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HERE WE GO AGAIN?

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“Cloud-computing will help to optimize the Federal

data facility environment and create a platform to

provide services to a broader audience of customers.”

President’s Budget for FY 2010

Section 9, Cross Cutting Programs

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IT IS SKEPTICAL

• IT is understandably skittish

about cloud computing.

• However, many of the cloud

computing resources out there

will actually provide better

service than on-premise.

• Security and performance are

still issues.

• Also, control.

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SECURITY AND MATURITY TOP L IST OF

CONCERNS FOR CLOUD SERVICES

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“Private Cloud Computing is Real – Get Over It” - Tom Bittman – Gartner

CONSIDER PRIVATE CLOUDS

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CONSIDERING CLOUDS

However, not so fast.

• Not all computing resources should exist in the clouds, private or public.

• Cloud computing is not always cost effective.

• Do your homework before making the move.

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CLOUD COMPUTING

A Fit When:

Processes, applications, and dataare largely independent

Points of integration are well defined

Lower level of security is fine

Core internal enterprise architecture is healthy

Web is the desired platform

Cost is an issue

Applications are new

Not A Fit When:

Processes, applications, and data are largely coupled

Points of integration are not well defined

Higher level of security is required

Core internal enterprise architecture needs work

The application requires a native interface

Cost is an issue

Application is legacy

© Bick Group 2010

PATH TO THE CLOUDS

Path to clouds: start with the architecture

Understand:

• Mission drivers

• Information under management

• Existing services under management

• Core business processes

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“AS- IS”

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“ TO BE”

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DEPLOY

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INFORMATION MODEL

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SERVICE MODEL

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STEPPING TO THE CLOUDS

1. Access the mission.

2. Access the culture.

3. Access the value.

4. Understand your data.

5. Understand your services.

6. Understand your processes.

7. Understand the cloud resources.

8. Identify candidate data.

9. Identify candidate services

10. Identify candidate processes.

11. Create a governance strategy.

12. Create a security strategy.

13. Bind candidate services to data and processes.

14. Relocate services, processes, and information.

15. Implement security.

16. Implement governance.

17. Implement operations.

© Bick Group 2010

DON’T FORGET

Episode 100 Last Week!

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THANKS!

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