kanban intro

MavenThought Inc.Amir Barylko > Kanban > What’s Kanban?

AMIR BARYLKO

WHAT ISKANBAN?


INTROKanban System

Pull vs PushGoals

Software ProcessExample


KANBAN SYSTEM

•Kanban = Signal Card

•Kanban cards represent the capacity of the system

•Each card is a “signal”

•No work can be started unless has a card available

•The card gets attached to a work item


PULL VS PUSH

New work is New work is

pulled pushed

into the system based on

into the system based on

capacity demand


GOALS

•Improve your current process

•Not change roles

•Not change flow

•Easy adoption


SOFTWARE PROCESS

•Cards are “virtual”

•Cards represent a work item

•The system is represented by a card “wall”

•Pull is signaled when the work-in-progress is less than the actual limit

•Often implemented with sticky notes and a board


KANBAN BOARD


MODEL YOUR PROCESSIdentify WorkflowDrawing the boardTime Calculation

BuffersWork Items

MavenThought Inc.Amir Barylko > Kanban > Implementation

IDENTIFY WORKFLOW

•Which states/phases can be possible?

•What are the transitions?

•Which roles are involved?

•Which are the boundaries?


EXAMPLE

Analysis

Design

Coding

Testing

UAT

Deploy


WORK ITEMS

•Use Cases

•User stories

•Bugs

•Change request

•Etc....


BOARD / CARD WALL

•Each phase/state becomes a column

•Has a first input column (usually called backlog)

•May have a last archive form done items

•The flow goes from left to right

•By convention highest priority goes on top


EXAMPLE BOARD

Input Analysis Design Coding Testing UAT Deploy

Flow


LEAD TIME

•Starts when the card is added to the input queue and finishes when is delivered/deployed


Lead Time


CYCLE TIME

•Starts when work begins on the card and finishes when the card is ready to be deployed


Cycle Time


BUFFERS

•Identify cards that are ready

•But can’t be moved to the next phase

•Usually shown as “done”

•or marked with different color


BOARD WITH BUFFERSBacklog AnalysisAnalysis CodingCoding UAT Deploy Archive

In Prog. Done In Prog. Done


WORK ITEMS

•Do all the work items have the same workflow?

•How can we identify them?

•Use different colors

•Or different rows (swim lanes)

•Or both


USING SWIM LANESBacklog AnalysisAnalysis CodingCoding UAT Archive

In Prog. Done In Prog. Done

Features

Bugs

Small Change


WHAT GOES IN THE CARD?

•Information about the feature/request

•Number for traceability (tracking system, etc)

•Who’s assigned

•Deadline

•Other?


Post-It&

Sharpie!DRAW YOUR BOARD

•Split up in teams (2 or 3)

•Identify current workflow

•Identify work items

•Draw a board

•Discuss

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