10 Reasons Your Software Sucks - Election 2012 Edition

10 Reasons your software Sucks(and the 10 practices you need to fix it)

Caleb

Development

Experience

Object Orientation

SOLID + Patterns + Simple Design

Secure Coding

Infrastructure

Automated Tests

Source Control

Automated Builds

Team Process

Agile, Lean, XP

Team Dynamics

Continuous Learning

Bui ld ing teams that engineer better software

Development ∙ Infrastructure ∙ Team Process

Caleb

developingUX.comspeakermix.com/calebjenkins

@calebjenkins


@calebjenkins


@calebjenkins

10 Reasons why your software Sucks(and the 10 practices you need to fix it)

back to…


Development

Development

Testable

Repeatable

Maintainable Reliable-able

ScalableExtensible

Deliverable

Workable

(User) Experience Matters!

User Experienc

e(UX)

Developer Experience

(API’s & SDK’s)

Experience is Reality

User Experienc

e(UX)

Developer Experience

(API’s & SDK’s)

Reality is Perception

Perception is the Product

ui

backend

ux

securityperformance

scalability

iauxdvisual design

Experience is the Product ui

backend

ux

securityperformance

scalabilityuxiauxdvisual design

Experience is the Product

DevelopmentObject Orientation

It’s amazing how many people write procedural code in an OO environment

EncapsulationInheritance

Polymorphism


OO

Procedural

Functional

Use Right Tool for the Right Job

It’s amazing how many people write procedural code in an OO environment

EncapsulationInheritance

Polymorphism

http://developingUX.com/di/

“The single greatest thing that you can do to make your code more testable and healthy is to start taking a Dependency Injection approach to writing software”

“The single greatest thing that you can do to make your code more testable and healthy is to start taking a Dependency Injection approach to writing software”

- Real World .NET, C# and SilverlightWrox Press 2012

Caleb Jenkins

- Real World .NET, C# and SilverlightWrox Press 2012

Caleb Jenkins

DevelopmentExperience

Object Orientation


VocabularycommonScenarioscommon

Answersproven


Patterns

MVCUI MVP

UI

MVVMUI

RepositoryData

FactoryCompone

nt

StrategyCompone

ntDecoratorFacade

Visitor

Patterns

MVCUI MVP

UI

MVVMUI

RepositoryData

FactoryCompone

nt

StrategyCompone

ntDecoratorFacade

Visitor

Chain of Responsibility

Abstract Factory

More

MoreState

More

More

Patterns

MVCUI MVP

UI

MVVMUI

RepositoryData

FactoryCompone

nt

StrategyCompone

ntDecoratorFacade

Visitor

Chain of Responsibility

Abstract Factory

More

More

MoreState

MoreMore

MoreMore

MoreMore

MoreMore

More

MoreMoreMoreMore

More

More

More

More

More

More

Beware the

anti-pattern pattern!

Beware the

anti-pattern pattern!Gotta try ‘em all!

MVCUI

RepositoryData

Abstract Factoryor Strategy

Compone

nt

SOLID + Patterns + Simple DesignSOLID + Patterns + Simple Design

“Any intelligent fool can make things Bigger, more complex and more violent It takes a touch of

Genius – and a lot of courage – to move in the opposite direction”

– Albert Einstein


DevelopmentExperience

Object Orientation


Development

Secure Coding

Experience

Object Orientation


Secure Coding

http://developingux.com/2010/02/10/secure-coding-101/

No SilverBullets

Secure Coding

Play in a Sandbox Don’t Use

Passwords

Input is Evil

Secure Coding

Play in a Sandbox Don’t Use

Passwords

Input is Evil

runtime

memory

least privilege

“safe” libraries

http://xkcd.com/327/

Secure Coding

http://msdn.microsoft.com/security/


SOLID

Patterns

Secure Coding

Team Work

Team Work Friction

Communication

Silos

Coordination

Toe Stepping

Throughput

DoTestcode

you

Your ?

UnitDo

Testcode

you

Your ?

UnitDo

Testcode

automatedyou

Your ?

what’s the difference?

Traditional Test

Unit Test

Automated Test

TDD / BDD

of Testing

of Testing

I test my app

It compiled didn’t it?

of Testing

I test my app

I test units of workin my app


DI + Mock are my best

friends

of Testing

I test my app


I run automated

unit tests



friends

CI FTW!

of Testing

I test my app


I run automated

unit tests

I test first



friends

CI FTW!

Red, Green,

Refactor Rinse + Repeat!

of Testing

I test my app


I run automated

unit tests

I test first

I write executable

specs to test my app



friends

CI FTW!

Red, Green,

Refactor Rinse + Repeat!

given <><> whenthen<>

of Source Control

of Source Control

I back up my code

Thumb drives are awesome!

of Source Control

I back up my code

File Share


Network Share is +1 from

thumb drive

of Source Control

I back up my code

File Share

VSS was free



thumb drive

So was herpes

of Source Control

I back up my code

File Share

VSS was free

Branch +

Merge ReleaseStrategy



thumb drive

So was herpes

Freedom to code!

TFS, SVN, GIT

of Source Control

I back up my code

File Share

VSS was free

Branch +

Merge ReleaseStrategy

Automated

Builds CI, Automated Deploy



thumb drive

So was herpes

Freedom to code!

“worked on my machine”

take THAT auditors!TFS,

SVN, GIT

Developer Operations

Source Control Production

Common Deployment Scenario




Retrieve Source

compile + send

binariesconfigure +

deploy binaries




Retrieve Source

compile + send

binariesconfigure +

deploy binaries



Improved Deployment Scenario




Updates Source

send .build script

runscript getsource buildbin

configure + deploy

binaries




Updates Source

send .build script

runscript getsource buildbin

configure + deploy

binaries

of Automated Builds

of Automated Builds

Visual Studio Build

F5 is How I Roll

of Automated Builds

Visual Studio Build

CI

F5 is How I Roll

Included in TFS, Cruise

Control,Team City,Jenkins CI

of Automated Builds

Visual Studio Build

CI Multi-Environment

Builds

F5 is How I Roll



Dev, Test, Stage,

Production

of Automated Builds

Visual Studio Build


Builds

Build from script

F5 is How I Roll



Dev, Test, Stage,

Production

Source? Yes, run

this .build

of Automated Builds

Visual Studio Build


Builds

Build from script

Hands

Off Deployment

F5 is How I Roll



Dev, Test, Stage,

Production

Source? Yes, run

this .build

Disaster Recovery Plan

+Auditor Compliance

done

Process

Agile, Lean, XP

Scrum Kanban

Push Pull

Learn by doing

Daily Stand UpsSize Units of

WorkProductBacklog

SprintBacklog

?WAIT! What about …Task boards, Information Radiators Reducing Work In Progress, Time Boxing Self Organization, Pull vs Push, Empowerment, Continuous Learning, Planning Poker, Story Sizing, Velocity, Team Swarming… etc, etc, etc..

Scrum is Simplenot to be confused with easy

Team Dynamics

Pairing colocation

colocationmentality (virtual)

ownershipInformation Broadcasting

size

silos

http://books.google.com/books?id=7L2gKlkqL5sC&printsec=frontcover&source=gbs_ge_summary_r&cad=0

Continuous Learning

How do you learn?

Sources?

Blogs

Podcasts

Conferences

Books

Continuous Learning

http://dimecasts.net/

What are we saying here?

BePASSIONATE

about what you do

Elect good Code!

Development Infrastructure Team Process

1 Experience

2Object Orientation

3 SOLID + Patterns + Simple Design

4 Secure Coding


5 Automated Tests

6 Source Control

7 Automated Builds

8 Agile, Lean, XP

9 Team Dynamics

Continuous Learning

10

Thank

you!


@calebjenkins

Thank

you!


@calebjenkins

Awesome

Reviews go

here!

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Copyright © 2011 – Buddy Lindsey – Used with Permission

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10 Reasons Your Software Sucks - Election 2012 Edition