Agile

Agile

About us

Jeff Bollinger

CTO

[email protected]

@Jbollinger• www.jeffbollinger.net

Cliff RobbinsSoftware Development [email protected] @DeadBigRedDog

Agenda

• Waterfall• Agile• Scrum @ W3i

What’s a Development Methodology?

Idea Software

Methodologies

• Waterfall• Agile

– Scrum W3i’s Flavor– XP– Kanban

Waterfall

Requirements

Design

Implementation

Testing

Deployment

Maintenance

Waterfall

Requirements

Design

Implementation

Testing

Deployment

Maintenance

Change

Takes too long

Gets skipped

The Real World

Waterfall Works Well When…

• Requirements are stable• Technology is well known

and mature• Everything happens as

one would expect• We are not taking on

anything new or unknown• We have done this many

times before

What is Agile?

• Iterative Development• Requirements and solutions evolve• Collaboration between self-

organizing cross-functional teams

Agile Manifesto

Individuals & Interactions

Processes & Tools

Working SoftwareComprehensive Documentation

Customer Collaboration

Contracts and Negotiation

Responding to Change

Following a Plan

over

over

over

over

http://agilemanifesto.org/

http://agilemanifesto.org/

Agile Principles

Embrace Change

Welcome changing requirements, even late in development. Agile processes harness change for the customer's competitive advantage.

Frequent Delivery

Deliver working software frequently, from a couple of weeks to a couple of months, with a preference to the shorter timescale.

Early Delivery

Our highest priority is to satisfy the customer through early and continuous delivery of valuable software.

Collaboration

Business people and developers must work together daily throughout the project.

Motivated Individuals

Build projects around motivated individuals. Give them the environment and support they need, and trust them to get the job done.

Conversation

The most efficient and effective method of conveying information to and within a development team is face-to-face conversation.

Working Software

Working software is the primary measure of progress.

Sustainable

Agile processes promote sustainable development. The sponsors, developers, and users should be able to maintain a constant pace indefinitely.

Simplicity

Simplicity--the art of maximizing the amount of work not done is essential.

Technical Excellence

Continuous attention to technical excellence and good design enhances agility.

Self Organizing Teams

The best architectures, requirements, and designs emerge from self-organizing teams.

Tune and Adjust

At regular intervals, the team reflects on how to become more effective, then tunes and adjusts its behavior accordingly.

Why Agile?

The Agile Paradigm Shift

PLANDriven

Fixed

Estimated

VisionVALUEDriven

Waterfall Agile

Requirements

Features

Resources Time

Resources Time

What is Scrum?

• Scrum is popular flavor of agile• Used @ W3i for past 6 years

Scrum Illustration

Scrum

User Story

Epics

Planning Meeting

Review MeetingStory Points

TasksBacklog

Velocity

Burndown Chart

Retrospective

Estimating

User Stories

Example: As a mobile advertiser I would like to be able to export reports via a web service in order to import data into my own system.

Estimating

0,1,2,3,5,8,13

Velocity

How fast are you going?

Planning Meeting

• Specific amount of time with specific

resources.

Daily Scrum

– What did you work on yesterday?

– What are you going to work on today?

– What are your roadblocks, if any?

Burndown

Sprint Reviews

Time to show off

Retrospectives

Questions?

We’re Hiring!- Summer Interns- .NET Developers

Jeff [email protected]

Cliff RobbinsSoftware Development [email protected]