how to suck at developing a web app, when you’re not a web shop

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How to suck at developing a web app, when you’re not a web shop. (Subtitled “Friends, contracts, and missed deadlines.”). Eric Light is managing director of Gravity Computing, a software development firm in Hamilton, who specialise in bringing efficiency to business processes with clever software design. He is an active member of the Waikato Chamber of Commerce, a member of the NZ Open Source Society, Associate Member of the New Zealand Computer Society, and is also Chairman of the branch committee of the Waikato branch of the NZCS.An overview of some of our most blatant failings when we attempted to develop a cloud-app through an external contractor, coming from a suitably-embarrassed business owner and ex law student.

TRANSCRIPT

Eric Light@RhyvenNZContactMe@EricLight.com

Audience Check

Developers? (Duh...)

Entrepreneurs?

Project Managers?

Audience Check

Developers? (Duh...)

Entrepreneurs?

Project Managers?

How to suck at developing a web app, when you’re

not a web shop.

On contracts, missed deadlines, and working with friends

Eric Light@RhyvenNZContactMe@EricLight.com

How to suck

On contracts, missed deadlines, and working with friends

Eric Light@RhyvenNZContactMe@EricLight.com

A bit about Eric

(Apple ][e) BASIC

A bit about Gravity

Small team (techs == Jordan & Eric)

Software development (still mostly in BASIC

omg)

IT Support, Server installs, etc.

...

Web Development conspicuously absent

The Root of the Problem

Typical ‘technician-founded’ company› No systems.

NoneSeriously, folks!

Eric was every role› Sales, Marketing, HR, Accounts, ZOMFG,

FML

The Inspiration

“I need you to call Geoffrey, and find out what he means by Ђξμδ.”

Need a tracking system

Brilliance!

Wait a minute... we’re developers!

“Let’s build our own!”

<trumpets>

The Plan

Develop a web app for job tracking

We were the target market

Must be simple, fast, cheap

Implementation

Brought it to a web dev

Quoted 100hrs max(accepted reluctantly)

2 deadlines:› Prototype – 6 wks› To Market – 12 wks

“Begin!”

<more trumpets>

All was hopeful...

The month passed...

Welcome to Hell

“Each time I re-readthe scope I noticesomething new..”

“I’ve hit a bitof a snag..”

“I can’t figure out how to do this bit here...”

*crickets*

...Half way to deadline

...1 day before due

...3 days overdue

...2 weeks overdue

The Meeting

Me, the dev, plus 2 business partners

Another month, guaranteed

def quit_date:return mid-feb

My blunder:“We’ll make these bits part of the final”

Quick Recap

Now well overdue

Still on prototype

100 hours, max

33% due on delivery

D-day

Not really finished

He said it was(remember: “prototype”)

Payments / Billing -> final stage

Demanded $$ for delivered prototype

déjà vu!

My expenses:About $6000+GST

His effective rate:

$10 per hour

What did we do right?

Understood the problem clearly

Kept a lid on scope creep

Knew the target market

Calculated commercial viability

Defined a quit date (finally!)

Where we went wrong

Failure to plan for failure› No milestones› No fallbacks› For either party

No prototyping

Working with a friend, sans contract

LoremIpsum

The Road Ahead

Early Warning Signs

Your wife says it’s not going to work

You haven’t done a paper prototype

You don’t have a dated chart for functionality delivery dates

Professionalism slips

*crickets*

A haiku

On a pre-planned date /if milestones aren’t yet met /inspect the darn code!

So remember...

Plan for failure – have a graceful exit!

Set clear milestones, with CRUD.› This lets you track progress very finely!

Your dev’s estimates are wrong.› So are yours.

Hofstadter’s Law

Communicate›CommunicateCommunicate!

Say: If I don’t enforce a term, it doesn’t change the contract, and I can still enforce it any time in the future.

Resources

These slides are at pycon.ericlight.com› Contractor template – email me

GettingITRight.co.nz

Business Technology Resource Centre› “Avoiding Project Failure”, 2003

CIO Magazine› “Lessons in Defeat”, 2011

Thanks

David Richardson› Additional critical brain

Jordan Schwab › learning SilverStripe to resurrect the

project Stock.XCHNG (www.sxc.hu)

› Imagery Grant Paton-Simpson & Roger Smith

› Letting me present to them

“I love deadlines. I like the whooshing sound they make

as they fly by.”

Actual quote from my developer... As well as Douglas Adams

Question Time!

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