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?