The Limited Red Society

Acceptance Criteria

Joseph Wilk

Limited Red Oh crap Joseph Wilk

Work In Progress

Context Switching is Expensive

Small Batch sizes

Red == Work in Progress

Why is Red Bad?

Limit RedMeasure RedVisualise Red Learn

Are weProfessionals?

Joseph Wilk PAIRINGRED TIME TESTING REFACTORING

Measuring &Visualising Red

Limited RedLearn and adapt from test metrics

Industrial Logic

Fighting Red

Patterns‣Parallel Change‣Narrowed Change‣Sequence Change‣Graceful Retreat‣Piecemeal Change‣Gradual Change‣Evolved Target‣Unified Methods Joshua Kerievsky

Parallel Change def resize_image(image, size) ... endMethod def resize_as_thumb_for_image(image) ... end

Parallel Change class Image class ThumbImageClass end end

Parallel Change Calendar CalendarService service service v1 v2

Narrowed Change<%- if @game.player?(@active_user) && @black_player.present? && @white_player.present? %> <%= render :template => messaging %><%- end %><%- if @game.player?(@active_user) && @black_player.present? && @white_player.present? %> <%= render :template => messaging %><%- end %>

Narrowed Change<%- game_presenter.show_messaging? do %> <%= render :template => messaging %><%- end %>class GamePresenter def initialize(game, black_payer, white_player) @game, @black_player, @white_player = game,black_player, white_player end def show_messaging?(&block) messaging_should_be_visible = @game.player?(@user) &&@black_player.present? && @white_player.present? yield block if messaging_should_be_visible endend

Sequence Change Remove Narrowed Extractcontrol flag change method

Sequence ChangeNarrowed Remove Extract change control flag method

Graceful RetreatPlease step away from the Yak... Slowly Shave?

http://www.refactoring.com/catalog/index.html

Learning more from Red ‣ Smart Continuous integration ‣ Failure rate ‣ Performance ‣ Flickering

Evil hat

More Books!

“To measure is to know” Lord Kelvin

Merci @josephwilkjoe@josephwilk.net

Merci @josephwilkjoe@josephwilk.net Green

The Limited Red Society

by Joseph Wilk on Jun 25, 2011

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