This document discusses key questions about cloud computing including: the main challenges companies face with applications that make them consider adopting cloud; current cloud computing provider offers; customer acceptance plans for cloud offers; risks of adopting cloud; criteria for evaluating cloud providers; benefits companies can expect from using cloud; how to build a business case for cloud; and whether cloud is a viable long-term strategy or a passing fad invented by tech providers. It seeks to provide answers to these questions about cloud computing challenges, offerings, adoption, risks, evaluation, benefits and business case development.

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3. Diferentes ofertas de servicios existentes y los proveedores, la arquitectura
conceptual, sus desafíos y riesgos, criterios de adopción, y beneficios.
Este tema pretende responder preguntas como:
1. Cuáles son los principales desafíos que las empresas tienen con sus
aplicaciones y que les hacen considerar adoptar Cloud Computing?
2. Cuáles son las ofertas actuales de proveedores de Cloud Computing?
3. Cómo están los planes de aceptación de las diferentes ofertas de Cloud
Computing en los Clientes?
4. Cuáles son los riesgos que las empresas ven para adoptar Cloud Computing?
5. Qué criterios se pueden utilizar para evaluar proveedores de Cloud
Computing?
6. Qué beneficios se pueden esperar para la empresa usando Cloud Computing?
7. Cómo hacer un Caso de negocio de valor para la empresa?
8. Es una estrategia viable y que está para quedarse y brindar beneficios
empresariales o es una “moda” pasajera que los proveedores de tecnología
inventaron para seguir vendiendo?
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4. • “Comes from the early days of the Internet
where we drew the network as a cloud… we
didn’t care where the messages went… the
cloud hid it from us” – Kevin Marks, Google
• First cloud around networking (TCP/IP
abstraction)
• Second cloud around documents (WWW
data abstraction)
• The emerging cloud abstracts infrastructure
complexities of servers, applications, data,
and heterogeneous platforms
– (“muck” as Amazon’s CEO Jeff Bezos calls it)
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5. Cloud Computing = an emerging IT development, deployment and
delivery model, enabling real-time delivery of products, services and
solutions over the Internet (i.e., enabling cloud services)
IDC, 2008
Cloud Computing = computing as a style of computing in which
scalable and elastic (massively scalable) IT-enabled capabilities are
delivered as a service to external customers using Internet
technologies.
Gartner Group, 2009 (updated)
Cloud computing = a pool of abstracted, highly scalable, and
managed compute infrastructure capable of hosting end-customer
applications and billed by consumption.
Forrester, 2009
Cloud computing is a model for enabling 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.
NIST Cloud Research Team, 2009
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6. Cloud computing is using
the internet to access
someone else’s software
running on someone else’s
hardware in someone else’s
data center while paying only
for what you use.
More Cloudy definitions:
Software as a Service (SaaS)
Platform as a Service (PaaS)
Infrastructure as a Service (IaaS)
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7. Pre-decessors Current Offerings
Cloud
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8. Software as a service (SaaS): Software deployed
as a hosted service and accessed over the
Internet.
Platform as a service (PaaS): Platforms that can
be used to deploy applications provided by
customers or partners of the PaaS provider.
Infrastructure as a service (IaaS): Computing
infrastructure, such as servers, storage, and
network, delivered as a cloud service, typically
through virtualization.
Anything as a service (XaaS): Acronym used to
express that anything can be delivered as a
service.
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10. Cloud Infrastructure Cloud Infrastructure Cloud Infrastructure
IaaS Software as a Service
PaaS PaaS (SaaS)
SaaS SaaS SaaS Architectures
Cloud Infrastructure Cloud Infrastructure
IaaS Platform as a Service (PaaS)
PaaS PaaS Architectures
Cloud Infrastructure
IaaS Infrastructure as a Service (IaaS)
Architectures
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12. Cloud computing leverages:
– Massive scale
– Virtualization
– Non-stop computing
– Free software
– Geographic distribution
– Service oriented software
– Autonomic computing
– Advanced security
technologies
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17. • Private cloud (internal)
– enterprise owned or leased
• Community cloud
– shared infrastructure for
specific community
• Public cloud (external)
– Sold to the public, mega-
scale infrastructure
• Hybrid cloud
– composition of two or more
clouds
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20. Core Services
• Hosting
• Data Access (BigTable)
• Google Data Services
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22. Core Services
• S3 - Blob storage
• SimpleDB - structure data
• EC2 - OS in the cloud
• SQS - Queue in the cloud
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23. Core Services
• Application Hosting (Azure)
• Data - SDS & Azure Storage
• Blobs (part of SDS and Azure storage)
• Queues (part of Azure storage)
•. NET Services (Access Control, Service
Bus, & Workflow)
• Live Services (Mesh & everything else)
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29.  Reduced Total Cost of Ownership: Cloud technology
is paid incrementally, saving organizations money.
 Increased Scalability and Reliability: leverage the
massive international infrastructure of the cloud
provider. This brings benefits of backup, reduced
latency, fault tolerance and the ability to support peak
demands.
 Highly Automated : No longer do IT personnel need
to worry about keeping software up to date.
 Flexibility: Cloud computing offers much more
flexibility than past computing methods.
Allows IT to Shift Focus: No longer having to worry
about constant server updates and other computing
issues, government organizations will be free to
concentrate on innovation.
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30. Two Scenarios:
- On Premise
- Cloud Computing
For each scenario:
Benefits
- Savings on upgrades & hardware renewal
- Savings on servers administration
- Reduced time to market
Costs
- OPEX
- Hardware
- Software
- Operational costs due to Cloud Computing
- Security
- Monitoring
- Compliance
- Operational efficiency
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38. … similar to birth of Web
Shared resources on the web and pay as I and eCommerce: much
consume without prior investments lower cost, faster TTM,
new source of alue
What expectations should A Clear definition of platform,
I have and what services and value proposition is
commitment I can do for key
my Company if using
Cloud Computing?
Leveraging Cloud Computing needs some
Architecture definitions: Public or Private
Cloud for “virtual-tructure”? What Platform When I deploy an
Computing will your Applications Application I need to
Architecture Team will use? decide Where
(hardware) and What
(software) I will use…
Remember to use Cloud
Governance and complete your
Business Case before adopting
How to convince my Company to Cloud Computing
use Cloud Computing?
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39. 1. Cuáles son los principales desafíos que las
empresas tienen con sus aplicaciones y que les
hacen considerar adoptar Cloud Computing?
2. Cuáles son las ofertas actuales de proveedores de
Cloud Computing?
3. Cómo están los planes de aceptación de las
diferentes ofertas de Cloud Computing en los
Clientes?
4. Cuáles son los riesgos que las empresas ven para
adoptar Cloud Computing?
5. Qué criterios se pueden utilizar para evaluar
proveedores de Cloud Computing?
6. Qué beneficios se pueden esperar para la empresa
usando Cloud Computing?
7. Cómo hacer un Caso de negocio de valor para la
empresa?
8. Es una estrategia viable y que está para quedarse
y brindar beneficios empresariales o es una “moda”
pasajera que los proveedores de tecnología
inventaron para seguir vendiendo?
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