Ezhil, Director CSS Corp Labs presented at Silicon India event on Building SaaS Enabled Applications

1. “Building SaaS
Enabled Applications”
Ezhil Arasan Babaraj Director of R&D Labs
CSS Corp

2. INDUSTRY TRENDS

3. IT Evolution
2012
2000
1990
Social
Networking
Web 1.0
Smart Devices
1980 ASP
Web 2.0 & 3.0
Web
Services
SOA
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4. Network Evolution
2012
2000
1990
1980
4
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5. Application Evolution
2012
2000
1995
1990
1980
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6. Application Delivery Model
2012
2000
1990
1980
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7. =
INTRODUCTION
TO
SaaS

8. Definition
“Software that is owned, delivered and
managed remotely by one or more providers.
The provider delivers an application based on a
single set of common code and data
definitions, which is consumed in a one-to-
many model by all contracted customers
anytime on a pay-for-use basis, or as a
subscription based on use metrics”
8

9. Characteristics
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10. Myths
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11. Taxonomy
Sourced from open cloud manifesto
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12. =
SaaS ESSENTIALS

13. Types of SaaS
Single Tenant Multi Tenant
• Quick Time • Consumes
to Market more time
• Usage of • Usage of
IaaS is must PaaS
• Automation • Scales by
Required itself
• Higher Opex • Lower Opex
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14. Key NFRs
• Shared Infrastructure
– Multi Tenant
• Data Privacy/Protection
• Automated Billing & Invoice
• Robust Messaging
• Customizable
– User Interface, Business Logic, Data
Model, payment Gateway & Messages
• Auditing
• Open Authentication with Classic Model
Support
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15. Conceptual Architecture
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16. Case Study
• A CRM for Support Business
– Subscription Management
– Ticketing System
– Consumer Products Packager
– Payment Gateway Support
• Single Tenant
• Single WEB, APP & DB
• Built on .NET & SQL Server
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17. CRM - Single Tenant Architecture
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18. CRM - Multi Tenant Architecture
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19. Key Techniques to Consider
• Data escrow
• Database sharding
• Soft/Hard Deletion
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20. Technologies to consider
• Oauth (http://oauth.net/)
• Hibernate Shards
(http://www.hibernate.org/subprojects/shards.html)
• Athena Framework (http://athenasource.org/java/)
• Heroku (http://heroku.com)
• Microsoft Azure (http://www.windowsazure.com/en-us/)
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21. Best Practices
• Use a PaaS platform
• Implement Database Sharding
• Use Soft Deletion where ever possible
• Always be stateless
• Built with Security at all the layers
• Ensure OWASP rules are satisfied
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22. Recommendations
• Start experimenting with a PaaS platform
• Unlearn and Learn
• Ensure Proper Tenant Partitioning across the
system
• Public PaaS - Verify the SLA’s carefully
• Understand the Limitations
• Choose the right Database Deployment Model
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23. References
• http://labs.csscorp.com
• http://athenasource.org
• http://www.opencloudmanifesto.org/Cloud_Computing_Use_
Cases_Whitepaper-2_0.pdf
• http://aws.amazon.com/solutions/case-studies/css-corp/
• http://cloudofinnovation.com/2011/07/01/big-data-and-
hadoop-a-cloud-use-case/
• http://ezhil.sys-con.com/
• http://megam.info/
• http://www.microsoft.com/windowsazure/
• http://simplicable.com/new/6-reasons-you-need-a-SaaS-
data-escrow-service
• http://horicky.blogspot.in/2010/01/roadmap-to-saas.html
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24. Thank You!
© 2012 CSS Corp – Copyright Notice:
This presentation contains proprietary information of CSS Corp. No part
of this presentation may be reproduced, stored, copied, or transmitted
in any form or by means of electronic, mechanical,
photocopying or otherwise, without the express consent of CSS Corp.
This presentation is for a specific intended audience circulation only and
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Confidential: This is specifically restricted to the Senior Management
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Restricted: This is restricted to Senior Management (PA’s and
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Public: This is information which can be released outside the
Organization.
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