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Application Lifescycle
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Nils De Moor
May 23, 2013
Programming
5
140
Application Lifescycle
In this sharing session we go through the processes of an application.
Nils De Moor
May 23, 2013
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Transcript
APPLICATION LIFECYCLE @NDEMOOR - NILS@WOORANK.COM
DEVELOPING “WHAT SHOULD MY APPLICATION DO?” “WHICH EXTERNAL SERVICES WILL
IT USE?” “HOW DO I KEEP DEV-PROD PARITY HIGHEST?”
CONFIGURING “WHAT VALUES SHOULD ONE BE ABLE TO CHANGE EASILY?”
“CENTRAL CONFIG VS. #DEFINE CONSTANT?”
TESTING “ARE ALL THE COMPONENTS OF MY APP DOING WHAT
I TOLD THEM TO DO?” “IS MY APP KEEPING GOOD PERFORMANCE?”
BUILDING “DOES EVERYTHING WORK AS INTENDED ONCE IT LEAVES MY
MACHINE?” “HOW DO I PACKAGE EVERYTHING UP?” “WHAT DEVELOPMENT HASSLE CAN I REMOVE?”
PROVISIONING “WHAT RESOURCES DOES MY APP NEED?” “WHAT LIBRARIES AND
VERSIONS DO MY RESOURCES NEED?”
DEPLOYING “HOW DOES THE PACKAGE GET TO AN ENVIRONMENT WITHOUT
DOWNTIME?” “CAN I EASILY ROLLBACK WHEN THINGS GO WRONG?”
QUALITY ASSURANCE “IS MY APP FULFILLING THE BUSINESS REQUIREMENTS?”
LOGGING “WHAT HAPPENS WHEN MY APP ENCOUNTERS UNEXPECTED BEHAVIOR?” “IS
THE PERFORMANCE OF MY APP STILL UP TO PAR?” “HOW DO I PREVENT THIS IN THE FUTURE FROM HAPPENING?”
FAULT TOLERANCE “HOW DOES MY APP RESPOND WHEN A SERVICE/RESOURCE
IS UNAVAILABLE?” “HOW ARE REQUESTS TO MY APP PRIORITIZED DURING THIS PERIOD?”
HEALTH CHECKING “IS MY APP STILL RUNNING?” “WHO AND WHEN
DOES IT NOTIFY IF IT DOESN’T?”
REGRESSION TESTING “IS MY APP STILL DOING WHAT IT IS
SUPPOSED TO DO?” “WHO AND WHEN DOES IT NOTIFY IF IT DOESN’T?”
DISASTER RECOVERY “IF ALL ELSE FAILS, HOW DO I GO
BACK TO A WORKING STATE WITH THE LOWEST AMOUNT OF DATA LOSS”
ALL THE THINGS ...MAKE HAPPY DEVELOPERS
HAPPY DEVELOPERS ...MAKE HAPPY CLIENTS