to estimate or not to estimate 2013 ndc
TRANSCRIPT
TO ESTIMATE OR NOT TO ESTIMATE -IS THAT THE QUESTION?
MARIT ROSSNES
Project Manager
Plans are useless,
but planning is indispensible
D.D. Eisenhower
LET’S DEFINE
When
Who
How
Why
6
ESTIMATES ARE EXPENSIVE
ESTIMATES HAVE SHORT SHELF LIFE
ESTIMATES BECOME IRRELEVANT
WE CAN’T ESTIMATE
ESTIMATES ARE COUNTERPRODUCTIVE
ESTIMATES SUPPRESSES CREATIVITY
What’s the
alternative?
Detailed up front
specifications
Complexity
Uncertainty
Creativity
HOW DOES IT COME ABOUT?
CRISIS BUDGET
≠SOFTWARE
DEVELOPMENT COST
EXPERIENCE BASED
DEVELOPMENTHIGH UNCERTAINTY
TRUST
Scrum
Continuous feedback
Feedback on delivery
Detailed specification Mission statement
Lean
Startup
Waterfall
Old school
product
development
NEW PRACTICES?
AGILE CONTRACTS
TALK!
MVP
But wait a minute!
Is a queue the best place
to see the whole picture?
SCENARIO PLANNING
IF YOU HAVE TO ESTIMATE
When
Who
How
Why
TO ESTIMATE OR NOT TO ESTIMATE -IS THAT THE QUESTION?