Why IT needs lean

by

Improvement

Why would we need that?

Well…

What exists today ?

CMMi

Do our customers have fewerincidents for that reason?

No !

Why ?

Let’s have a look…

… a closer look

First

There is a customer

And the customer has some…

Requirements

That we transform into…

Specifications

Specifications are checkedwith the customer

The customerspecifies hisrequirements

Back to writingspecifications

Then, we have…

Development

Second check with the customer

The customer changes opinion

(Time has passed sincethe initial requirements)

Back to development

(Or was it a specificationproblem?)

With some luck, we shouldbe able to start…

… The tests

But then…

We find bugs

Back to development

More tests

One day we will get to…

Pre-production

It’s now time for…

… a third check with the customer

Bugs are found with the real data

Back to development

Functional bugs are alsofound

Back to specs

Back to development

And more tests

Then back to pre-production

In the end, we shouldbe …

In production!

Yes!

But then, we get…

Incidents!

That we know how to fix…

(Choose the best one)

� Restart a job

� Restart a job� Add disk

� Restart a job� Add disk� Add CPU

� Restart a job� Add disk� Add CPU� Add _________

Then…

(the production is redelivered)

New incident!

Now it’s time for a…

Problem analysis!

That will allow us to find…

The good solution !

(back to development)

(tests)

(pre-production)

(in production)

The customer is still waiting…

Finally you realise that!

Now it’s time for …

The task force!

Problem analysis again!

(back to development)

(tests)

(pre-production)

(in production)

…

Déjà vu?

Not strange that…

Specification teams

Developers

Test teams

Pre-production teams

Production teams

Incident management teams

Problem management teams

… are overloaded!

…

Be lean!

www.operae.fr contact@operae.fr