GORUCO 2009 - SOLID Object-Oriented Design by Sandi Metz

Thank you.

Can you hear me? Yes, Sebastian?
Can you hear me?

So I'm Sandi Metz.
I'm from Duke University.

I know that you guys, some
people think of the,

of universities as being just
like the enterprise except

- with lower standards. [laughs]
- (audience laughs)

There's a little truth in that.
Honestly - there's a little truth in that.

But also universities are places where

we get more freedom to do,

to be out on the leading edge
of software.

And because of that at Duke --

(I'm sorry, they told me to stand
back here in the light)

At Duke we've been writing Smalltalk apps
since the early 1990's.

So I have 10 years of experience of Smalltalk.

So if this were a weekday, there would be

someone in my office doing maintenance

on a production application that's written
Smalltalk

that does grants management
at Duke University.

They would be working on it right now.

We're a little bit different than
a lot of you

in that we don't have millions of users,

we don't have high transaction rates,

we don't have huge piles of data.

But what we do have is

applications that have been around
a long time

and that get changed really every day.

So, the apps that I write - I don't
actually use myself,

so you can't really say that
"we eat our own dogfood"

but I look at leftovers every day.

And I have for a long long time.

But enough about me.

Let's talk about you.

Because you're here,

I'm guessing that you've written
an application.

And even though I've never
seen that app,

there's something I can say
about it:

It's gonna change.