Software Engineering in the Age of SaaS and Cloud Computing - SERA 2013 - MFF UK - August 2013

©2013 GoodData Corporation. All rights reserved.

SOFTWARE ENGINEERING IN THE AGE OF SAAS AND

CLOUD COMPUTING

Jaroslav GergicVP, R&D and Operations, [email protected]

SERA 2013@ MFF UK

August 7 2013

mailto:[email protected]

mailto:[email protected]

http://d3s.mff.cuni.cz/conferences/sera2013/

http://d3s.mff.cuni.cz/conferences/sera2013/

http://www.mff.cuni.cz/to.en/


OUR AGENDA● Introduction ● Software as a Service● Cloud Computing● Impact on Software Engineering● Discussion

© 2013 GoodData Corporation. All rights reserved


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The old way…


Our Discussion

Agenda points

OUR VISION IS TO CHANGE THE WAY THE WORLD EXPERIENCES BUSINESS INTELLIGENCE.


OPEN CLOUD BI PLATFORM



WHY GOODDATA

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OUR CUSTOMERS

UNLOCK DATAUNITE DATA MONETIZE DATA


Traditional Enterprise Software vs. Software as a Service

● hosted by SaaS provider

● shared Infrastructure● economies of scale

● hosted by customer● HW & Infrastructure

costs borne by customer

©2013 GoodData Corporation. All rights reserved. © 2013 GoodData Corporation. All rights reserved


● integrated solution delivered over the Internet

● multiple HW/SW vendors

● SW integrators




● single codebase for everybody

● functional & business consulting


● SW integrators● frequent code

customizations● armies of technical

consultants





● single codebase for everybody

● functional & business consulting

● customer configuration changes possible


● SW integrators● frequent code

customizations● armies of technical

consultants● blurred line between

code and configuration changes



SAAS - FOCUS ON CUSTOMER VALUE

● simplified and consolidated infrastructure allows to focus on customer features instead of technicalities

● easier to accumulate expertise and best practices in a particular domain or industry vertical

● enabling customers to benefit from collective knowledge



SAAS - FASTER INNOVATION CYCLE

● traditional enterprise SW:○ annual or semi-annual cycle

● SalesForce.com pioneer of Enterprise SaaS:○ seasonal releases

● GoodData: major release every month○ minor updates 2 x week

● Next Stop: Continuous Delivery

Cloud Computing

"Cloud computing relies on sharing of resources to achieve coherence and economies of scale similar to a utility (like the electricity grid) over a network. At the foundation of cloud computing is the broader concept of converged infrastructure and shared services."

(source: Wikipedia)

http://en.wikipedia.org/wiki/Cloud_computing

Cloud Computing

= Democratization of

SaaS

Cloud Computing

● public computing clouds further lower the capital needed to starta SaaS company

● elasticity of clouds lets companies scale quickly and just-in-time with little capital expenditure up-front

● cloud computing has become the catalyst expediting the transition from traditional behind-the-firewall software to SaaS


3 Questions

Our Discussion

Agenda points

WHAT ISTHE IMPACT ONSOFTWARE ENGINEERING?● the game has changed a lot...

● … if you happen to be in SaaS


● dynamics of change has increased significantly from months to weeks

● vast scale of SaaS deployments means hitting HW / SW limits all the time

● SaaS requires tightly IntegratedR&D + Operations + Customer Service

(note the second uppercase ‘S’ in SaaS)

WHAT HAS CHANGED?



● increased dynamics of change too many fast changing variables

● hitting HW / SW limits all the time hard to model and predict the next hot spot layered approach does not work anymore

● Ops / Customer Experience / Service software engineers need to broaden their skill set

WHAT DOES IT MEAN?



DEVELOPING SAAS PRODUCT


think about operational aspects:● security

IDS systems, audit logging regular penetration testing

● performance collect statistics at runtime identify hot-spots and remove on the fly




● deployment automation operating hundreds of servers virtual servers become equivalent to processes in the traditional model

● monitoring and logging alerts, troubleshooting and debugging huge volume log files - grep no longer helps

Beware: The code you write can wake you up in the middle of the night! (Literally speaking.)




● It is not only about developing software, it is also about running it on behalf of customers:

monitoring, error reporting & alerting ongoing performance optimizations & fine tuning incremental feature rollouts (risk mitigation)

● All the above influences the way you should architect and develop your software and technologies you use.


Our Discussion

Agenda points

KEYS TO SUCCESSIN SAAS● BE AGILE

YOU CAN’T PREVENT STUFF HAPPENING YOU SAVE THE GAME IF YOU CAN FIX FAST

● BE FLEXIBLE EMBRACE CHANGE ONLY CHANGE IS GUARANTEED TO HAPPEN

● BE VERSATILE END USER EXPERIENCE IS CRUCIAL IN SAAS OWN IT - NO HANDOVERS


THANK YOU!

Questions?

Software Engineering in the Age of SaaS and Cloud Computing - SERA 2013 - MFF UK - August 2013

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