1

Introduction

• Defining Cloud Computing and SaaS
• History leading to the emergence of cloud computing and SaaS.
• Positioning of cloud computing versus classical hosting providers.
• Positioning of SaaS (Software as a Service) with regard to the concept of ASP.
• Relationship between Virtualization and Cloud Computing.
• Impact of SOA on the adoption of Cloud Computing solutions by company.

2

SaaS and cloud computing

• SaaS vs Cloud Computing.
• SaaS and Cloud Computing, what usages do they provide solutions for.
• Align costs and usage.
• Benefits of Cloud Computing: dynamic outsourced resource allocation, logical isolation ...
• Main Cloud computing drawbacks : Privacy, legislation ...
• Estimation and cost tracking challenges with Cloud and SaaS.
• Issues and benefits of the proliferation of unofficial Cloud ussage (Shadow IT)
• Managing backups. What's the impact on the backup strategy?
• Reversibility. Various strategies. Which one to choose.
• What are the main blocking factors for entreprise adoption of the Cloud, how to overcome the reluctance?

3

Market solutions - Overview

• Public Cloud Computing. Private Cloud Computing. Hybrid cloud. Cloud Computing Communityoffering.
• Public cloud services. Amazon AWS and EC2 services, S3, SQS, SimpleDB, RDS, SNS, ELB, mail, ...
• Google Cloud AppEngine and Compute Engine / BigQuery / CloudSQL / etc. Microsoft Windows Azure PaaS and IaaS.
• OpenStack based clouds : HPCloud, Rackspace, IBM / Softlayer, etc. OVH "Public Cloud" and "Dedicated Cloud".
• Offers VDC: VMware vCloud ServiceHybrid.
• Other cloud offerings: DigitalOcean, Cloudwatt, Numergy Orange Flexible Computing SFR Cloud.
• Private Cloud solutions. OpenStack, Eucalyptus and CloudStackCloudBees. VMware vCloud Director / vFabric.
• Cloud Management solutions. RightScale, Scalr, Heroku, ...

4

Usage scenarios for Cloud Computing

• Technically oriented usage scenarios (IaaS, PaaS).
• Usage oriented scenarios (automation, mobility, Web integration ...).
• Eligibility of applications for a cloud outsourcing: business, collaborative applications, human resources management...
• Impact of SaaS and Cloud Computing on GreenIT.

5

Security and Privacy

• Differentiation between Security and Privacy.
• Levels where security can be implemented.
• Key issues.
• Main concerns.
• Legal aspects.
• Practical and technical aspects of data protection.
• Supplier Selection and contracting.
• Policy for password and keys management.
• Authentication Delegation.

6

Integration of Cloud and SaaS solutions with enterprise IT

• Technical aspects: communication between the IS and Cloud/SaaS solutions.
• Issues of bandwidth and QoS the link between internal and external IF.
• Software Licenses.
• Single Sign On.
• Internal management accounts and external access.
• Choose the billing mode (credit cards, monthly bills, ...)

7

Information system architecture integrating Cloud Computing solutions

• IT Architecture and SOA.
• Schematic of an globale IS with some internal and SaaS and Cloud resources.
• Patterns of Cloud application architectures.
• Integration between the internal IS and SaaS solutions.
• Issues with the integration between the interal IS and Cloud.
• Issues of integration between different Cloud services.
• Migration internal IS services to the Cloud.
• Manage the increased dependency toward the network.

8

Private Clouds

• Private Cloud, what for ?
• Definition of private cloud computing.
• Reminder about the basics of virtualization (para-virtualization, ...).
• Difference with regard to virtualization inside an internal or external Datacenter.
• Difference with regard to classical datacenters or “compute grids”.
• Pros and cons. The economic equation. The main virtualization technologies.
• Open-source tools for the private cloud (OpenStack, CloudStack, KVM, libvirt, ...).
• Proprietary technologies.

9

The technical solutions and NoSQL Cloud

• Databases for the Cloud.
• Emergence of NoSQL databases. Differences with RDBMS.
• Foundations for NoSQL database.
• Features and limits of RDBMS.
• Main opensource NoSQL databases (Cassandra, MongoDB, HBase, ...).
• Main integrated cloud NoSQL databases (Google Datastore / CloudSQL, Amazon DynamoDB / SimpleDB, Google BigQuery).