8/4/2019 Introduction to Product Develoment Flow

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Intro to product development flow

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www.linkedin.com/in/yuvalyeret 

Blogging @ http://yuvalyeret.com 

Presentations at http://www.slideshare.net/yyeret/

  -Agile Professionals in Israel I'm there - Are you?

@ y u v a ly e r e t

 Yuval Yeret.yuval@agilesparks com

 

:// . .Http lssc11 leanssc org 

8/4/2019 Introduction to Product Develoment Flow

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What we will cover in this webinar

• Why we need to think about flow – commondysfunctions of development processes

• Flow as part of a recipe for success

 – How to enable flow

 – How to see flow

• Common questions/concerns about flow

• Flow and Iterations/Scrum

• What to do tomorrow with flow

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So ow oes an agi e process ook compare totraditional?

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The Waterfall approach

Requirements Design Code Testing

Requirements Design Code Testing

Requirements Design Code Testing

Requirements Design Code Testing

Requirements Design Code Testing

Requirements Design Code Testing

Time

DONE

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Ideal world Feature-Driven

R D C T

Time

R D C T

R D C T

R D C T

R D C TR D C T

DONE

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H   

ar d   en i   n   g 

But what we typically see is...

R D C T

Time

R D C T

R D C T

R D C T

R D C TR D C T

DONE

 CodingDone

 FeatureFreeze

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What this causes

Time

DONE

 CodingDone

 FeatureFreeze

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H   

ar d   en i   n   g 

Scrumgate

R   

e  q u i   r em en t  

s

D C T

Time

D C T

D C T

D C T

D C TD C T

DONE

 FeatureFreeze

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And...

R D C T

Time

R D C T

R D C T

R D C T

R D C TR D C T

DONE

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Big Features

R D C T

Time

DONE

R D C T

R D C T

R D C T

Time

R D C T

R D C TR D C T

R D C T

R D C T DONE

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What about multiple teams?

R T1 T2 T

Time

R T1 T2 T

R T1 T2 T

R T1 T2 T

R T1 T2 T

R T1 T2 T

DONE

 CodingDone

T1

T2

T

Team1

Team2

Integration Team

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A scrum example

 Features in progress? 3  versus 1

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So now that we see the

pain...

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What do we do?

• David Anderson’s recipe for success: – Focus on Quality

 –Reduce Work-in-Progress,

Deliver Often

 –Balance Demand against

Throughput – Prioritize

 – Reduce Variability and Improve the Process

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First impediment to flow – big Features/Batches

BIG Features

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That are stuck for long in each stage

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Move from rocks to pebbles

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Moving to small units of work is NOT enough

• If our policy/behavior is early start ofeverything

• “Working on many things in parallel will

ensure high utilization”• “Everything is important”

•“Each engineer has his own baby feature,they don’t want to collaborate, and there

is a high collaboration overhead”

• Batch size is still HIGH

H d Vi li th k t t i

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 How do we Visualize the work status in more depth?

TODO   Work in

 Process( ) WIP

Done

h l l

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 The Cumulative Flow Diagram

• Introduced in Lean Product Development by Don Reinertsen and DavidAnderson

• Visualize where the Features/Stories are in the workflow across time

TODO   Work in

 Process( ) WIP

Done

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TO DO IN PROGRESS DONE

Elad

Inbar

Elad

Mushon

Mushon

Inbar

InbarMushon

Elad

TO DO IN PROGRESS DONE

1 8 1

TO

DO

IN PROGRESS DONE

1 8 1

How to do a CFD

H d FD

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How to do a CFD

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What can teams learn from Cumulative Flow?

Real DoneBurnup

Total Scope Dev Burnup

Done BurnupWork in Process (WIP)

Average Cycle Time

k P

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Work in Process

• High Work-in-process leads to longest lead times to feedback and

higher costs• Low work-in-process greatly reduces lead times to feedback

• Results in more effective and safer projects

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How can I take this to my

context?

Visualize and manage the flow on your work

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Visualize and manage the flow on your worktracking system

• HP QualityCenter

• Microsoft TFS

• IBM Lotus Notes

• JIRA

• Etc..

•

If d ’t tl h k t ki

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If you don’t currently have a work trackingsystem – you can use a kanban system

AgileZen (RallyDev)

LeanKit Kanban

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–A Kanban board Not aMust for Flow

 But will SIGNIFICANTLY improve it

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Common questions/concerns

about flow

I ’t thi t f ll?

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Isn’t this a waterfall?

B t ld ’t th b ttl k l thi ?

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But wouldn’t the bottleneck slow everything?

A l f lit

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H   ar d   en i   n   g 

An example - focus on quality

R D C TTime

R D C T

R D C T

R D C T

R D C T

R D C T

DONE

 CodingDone

 FeatureFreeze

H d I it?

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How do I commit?

/

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How does flow relate to iterations/scrum?

H is this diff r nt th n Scrum?

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How is this different than Scrum?

• Applicability?•

• Scope?

•

• Prescription?

••

• The interesting question – how they canh h

Mashups

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Iterations 

Flow

Iterations

FlowIterations

Flow

DONEDONE

DONE

Mashups

READY

Project/Component Kanban Board

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Project/Component Kanban Board

R     E     A      D     Y     

 !     

R     E      A     D     Y     

 !     

D     

 O     N      E     Flow

 Opportunity&Team Project

Manager Scrum Teams

# ... –From my talk at LSSC10 Amdocs Case Study

Initiative/Program Kanban Board

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Initiative/Program Kanban Board

Scrum/Kanban The way WIP limits/PULL work

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Scrum/Kanban - The way WIP limits/PULL work

To do Ongoing Done :o)

B

C

A

D

FLOW

To do Ongoing Done :o)

B

C

A

D

FLOW

2

Scrum board Kanban board

WIP limited per unit of time(iteration)

WIP limited per workflow state

Source: Henrik Kniberg

approaches to change

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 approaches to change

P   er f   or m a

n ce

Time

 Revolution( )Scrum

Evolutio

 n

(K )anban

( )kanban the tool

Recommendations for scrummers looking at flow

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Recommendations for scrummers looking at flow

• If scrum works for you – don’t touch it!•

• If you see dysfunctions consider how flow

can help you•

• Look at flow as a way to scale effectively•

Main attractiveness of flow

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Main attractiveness of flow

• Finally, an agile-based approachthat easily supports:

 –Mainstream/pragmaticorganizations – wanting to

improve, avoiding a revolution

 –Large/Complex environmentswhere feature teams are not

enough

Take aways

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Take awaysVisualize YOUR workflow

Limit work in process: Stop starting, start finishingIdentify bottlenecks/constraints and think how to improveperformanceThis applies to all LAYERS(including the META one)A pragmatic tip - Think how to

introduce Flow to YOUR worktracking system

It is not crucial to nail down the accurate

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It is not crucial to nail down the accurateoptimized WIP Limit / Batch Size / Sprint length

½ the WIP, ½ the batch size,

can be a good start...Based on Reinertsen

Product Development Flow

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Questions?

Summary

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Summary

Limit work in process: Stop starting, start finishing

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www.linkedin.com/in/yuvalyeret 

Blogging @ http://yuvalyeret.com 

Presentations at http://www.slideshare.net/yyeret/

Agile Professionals in Israel - I'm there - Are you?

@ y u v a l y e r e t 

Yuval Yeret

 yuval@agilesparks.com

Http://lssc11.leanssc.org 

Images Attribution

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Images Attribution

• http://www.flickr.com/photos/yuvalyeret/265568342/in/set-72157594323037021/

• www.slideshare.net/wnazzaro/agile-it-and-the-business-community