The origin of Kanban

organize terminologies related in Kanban

Transcript

1. The origin of Kanban Yasunobu Kawaguchi @kawaguti 13೥8݄8೔໦༵೔
2. lΧϯόϯzʹ͍ͭͯ੔ཧ͍ͨ͠ I’d like to discuss about a complicated terminology “Kanban” motivation 13೥8݄8೔໦༵೔
3. Kanban? Signboard ೔ຊͷ֗಄Ͱ Α͘ΈΔ؃൘ɻ ӳޠͩͱɺ ͱ͍͏ Β͍͠ “Kanban” : Most Japanese may imagine signboards first. ؃൘ 13೥8݄8೔໦༵೔
4. Kanban? ΞδϟΠϧͷจ຺Ͱ Α͘ΈΔΧϯόϯ Kanban boards : We can see in Agile context. http:/ /www.infoq.com/articles/agile-kanban-boards http:/ /blog.crisp.se/2009/11/16/henrikkniberg/1258359420000 Kanban board ͱ͍͏ Β͍͠ 13೥8݄8೔໦༵೔
5. Kanban? εΫϥϜͷλεΫϘʔ υͷ͜ͱΛ͔Μ͹Μͱ ͍͏ਓ΋͍Δ Task boards : We can see in Scrum team. Task board http:/ /www.infoq.com/jp/minibooks/scrum-xp-from-the-trenches ͱݺ͹Ε͍ͯΔ 13೥8݄8೔໦༵೔
6. “Kan ban” = Signboards ؃
   ൘ ͔Μ͹Μํࣜ Kanban system ݟ͑ΔԽ visualization λεΫϘʔυ Taskboards ,BOCBO
   Ϙʔυ Kanban boards in Scrum in Kanban in Toyota Today’s Topic ຊ೔ͷςʔϚ 13೥8݄8೔໦༵೔
7. “Kan ban” = Signboards ؃
   ൘ ͔Μ͹Μํࣜ Kanban system ݟ͑ΔԽ visualization λεΫϘʔυ Taskboards ,BOCBO
   Ϙʔυ Kanban boards in Scrum in Kanban in Toyota Today’s Topic ຊ೔ͷςʔϚ 13೥8݄8೔໦༵೔
8. Kanban system Kanban system τϤλࣗಈं޻ۀ େ໺଱Ұ͞Μ͕ൃ໌ͨ͠ ͔Μ͹Μํࣜ େ໺ํࣜ Kanban system was created by Ohno Taichi-san 13೥8݄8೔໦༵೔
9. ࣗಈं͸ଟ͘ͷ෦඼͔ΒͰ͖͍ͯΔɻ ෳ਺ͷ޻৔Ͱɺࡐྉ͔Β෦඼͕ੜ࢈͞Εɺ ίϯϙʔωϯτʹͳΓɺ૊Έ্͛ΒΕ͍ͯ͘ɻ Motorcars consist of many parts. Through many factories, materials are produced into parts, components, and finally assembled into a car. 13೥8݄8೔໦༵೔
10. Factory A Factory B If Factory A does not have enough inventory, they can not ship their product on time. ΋͠
    ޻৔"͕ࡏݿΛ͍࣋ͬͯͳ͚Ε͹ɺ ඞཁͳλΠϛϯάͰग़ՙ͢Δ͜ͱ͕Ͱ͖ͳ͍ɻ 13೥8݄8೔໦༵೔
11. ͦ͜Ͱɺ֤޻৔ͰඞཁͳࡏݿΛ࣋ͭɻ ͔͠͠ɺࡏݿ͸ചΕ͍ͯͳ͍ͷͰɺ ίετΛճऩͰ͖ͳ͍ ૔ݿ୅΋͔͔Δ ɻ Therefore, each factories has enough inventory. But inventory does not make any returns. 13೥8݄8೔໦༵೔
12. ͔͠΋ɺधཁ͸มಈ͢Δɻ ΤϯυϢʔβʔ͕ΫϧϚΛߪೖ͢Δ͔ɺ ͲͷΫϧϚΛબͿ͔͸Θ͔Βͳ͍ɻ And also demands are changing. Anyone can not predict whether end-users buy or not, and which type of cars do they choose. ?? 13೥8݄8೔໦༵೔
13. Factory A Factory B Inventory < N ͔Μ͹ΜํࣜͰ͸ɺ ֤۠ؒͷࡏݿͷ਺Λ/ݸʹ੍ݶ͢Δ In Kanban system, the number of inventory on each zone are limited to N. 13೥8݄8೔໦༵೔
14. Factory A Factory B Inventory < N /ݸͷࡏݿΛൃ஫ථͷ਺Ͱද͢ɻ ޻৔"͸ฦૹ͞Ε͖ͯͨൃ஫ථͷ෼͚ͩೲೖ͢Δɻ ͜ͷൃ஫ථΛ͔Μ͹Μͱ͍͏ɻ Order sheets represents N:the number of inventory. Factory A can ship on the number of order sheets. These sheets called Kanban. 13೥8݄8೔໦༵೔
15. ͢Δͱɺࡏݿͷ਺/
    ෼ͷ༨༟Λ࢒͠ɺ Ұ൪࠷ޙͷ׬੒ंͷग़ՙΛى఺ʹͯ͠ɺ ֤޻৔͕࿈ಈͯ͠ग़ՙ͢Δ͜ͱʹͳΔɻ So, except for inventory N, the final car shipment pull each Factories’ production. 13೥8݄8೔໦༵೔
16. ֤۠ؒͷࡏݿ/ͷ਺Λௐઅ͠ɺ దਖ਼ͳࡏݿͷ਺Λอ͍ͬͯ͘ɻ Through adjusting the N: number of inventory, control the total inventory size in suitable. 6 6 2 2 2 4 13೥8݄8೔໦༵೔
17. ׬੒ंҰ୆ͷग़ՙλΠϛϯά ִؒ Λ ʮλΫτλΠϜʯͱ͍͏ɻ Քಇ࣌ؒ
    ×
    ඞཁੜ࢈਺ྔ Takt Time : Time interval for build one product. Available production time ÷ Customer demand 6 6 2 2 2 4 Takt Time 13೥8݄8೔໦༵೔
18. λΫτλΠϜ χʔζ ʹରͯ͠ ֤Ϣχοτͷੜ࢈ϐονΛ ʮαΠΫϧλΠϜʯͱ͍͏ɻ Takt Time is based on estimated market needs. Cycle Time is actual production interval of each unit. 6 6 2 2 2 4 Cycle Time Takt Time 13೥8݄8೔໦༵೔
19. Andon ֤޻ఔ্Ͱ໰୊͕ൃੜͨ͜͠ͱΛ௨஌͢Δ࢓૊Έɻ ޻৔ϥΠϯ্ʹ౉͞Εͨίʔυͷܗͷ΋ͷ͕༗໊ɻ ໰୊͕ൃੜͨ͠Β୭Ͱ΋ʮ͋ΜͲΜͷͻ΋ʯΛ Ҿ͍ͯϥΠϯશମʹҟৗΛ௨஌Ͱ͖Δɻ ҟৗ͕ൃݟ͞ΕͨΒɺ࠷༏ઌͰͦͷ໰୊ΛऔΓআ͘ɻ "OEPO
    JT
    B
    TJHO
    GPS
    BCOPSNBM
    JODJEFOU
    PO
    FBDI
    VOJU l"OEPO
    DPSEz
    JO
    GBDUPSZ
    BTTFNCMZ
    MJOF
    BSF
    GBNPVT *G
    FBDI
    XPSLFS
    XPVME
    GBDF
    EJ⒏DVMUZ
    BHBJOTU
    QSPEVDUJPO QVMM
    UIF
    l"OEPO
    DPSEz
    UP
    TUPQ
    UIF
    MJOF
    BOE
    OPUJDF
    FWFSZPOF
    5IFO
    XIPMF
    UFBN
    XPVME
    GPDVT
    PO
    SFNPWJOH
    
    UIF
    JODJEFOU
    13೥8݄8೔໦༵೔
20. ରॲͱରԠ ରॲ
    
    ͱʹ͔͘ϥΠϯΛಈ͔͢Α͏ʹ͢Δ͜ͱ ରԠ
    
    վΊͯࠜຊݪҼΛ௥ٴͯ͠վળ͢Δ͜ͱ 
    ͱு෋࢜෉͞Μ͕େ໺଱Ұ͞Μʹࢦಋ͞ΕͨΤϐιʔυͱͯ͠ΠϯλϏϡʔͰݴ ͍ͬͯͨͱهԱ͍ͯ͠ΔͷͰ͕͢هԱؒҧͬͯͨΒ͝ΊΜͳ͍͞ɻ Tai-sho : removing that impediment of flow Tai-ou : analyzing root cause and do Kaizen I believe this was from Fujio Cho-san’s interview, but the source was lost. I’m sorry, it could be wrong. 13೥8݄8೔໦༵೔
21. Kanban system Kanban system is a coordination system based on estimated market needs. ✓Number of order sheets (Kanban) = limitation of inventory size ✓Takt Time : interval of each product shipment ͔Μ͹Μํࣜ͸ɺϚʔέοτͷधཁ ༧ଌ ʹ جͮ͘੡଄޻ఔͷௐ੔γεςϜɻ͔Μ͹ΜͱλΫτλΠ ϜͰϓϩηεશମΛௐ੔͢Δɻ 㾎ൃ஫ථ ͔Μ͹Μ ͷ਺͸֤աఔͷࡏݿͷ্ݶ஋ɻ
    㾎λΫτλΠϜ͸׬੒඼Ұ୆ͷग़ՙִؒɻ 13೥8݄8೔໦༵೔
22. “Kan ban” = Signboards ؃
    ൘ ͔Μ͹Μํࣜ Kanban system ݟ͑ΔԽ visualization λεΫϘʔυ Taskboards ,BOCBO
    Ϙʔυ Kanban boards in Scrum in Kanban in Toyota Today’s Topic ຊ೔ͷςʔϚ 13೥8݄8೔໦༵೔
23. Mary Poppendieck Tom Poppendieck http:/ /www.poppendieck.com/people.htm Lean Software Development Kanban David J. Anderson http:/ /www.agilemanagement.net/ 13೥8݄8೔໦༵೔
24. ιϑτ΢ΣΞ։ൃʹ͓͍ͯ͸ɺ ։ൃͷ֤ஈ֊ͷϑϩʔΛॻ͖ग़͢ɻ ϦϦʔεͯ͠ར༻ऀʹ࢖ͬͯ΋Β͍ɺ ऩӹΛಘΔ·Ͱ͸ࡏݿͰ͋Δɻ In software development, draw each step of activities for building software. Until users’ paying after release/ shipment, these are all inventory. Value Stream Mapping 13೥8݄8೔໦༵೔
25. Kanban board Plan Design Coding Testing Deploy 13೥8݄8೔໦༵೔
26. Kanban board Plan Design Coding Testing Deploy Map the value stream to Kanban board όϦϡʔετϦʔϜΛΧϯόϯʹϚοϓ͢Δ 13೥8݄8೔໦༵೔
27. WIP limit ͔Μ͹ΜํࣜͰࡏݿΛ੍ݶͨ͠ͷͱಉ͡Α͏ʹ ֤޻ఔͰணखͯ͠Α͍λεΫͷ਺Λ/ʹ੍ݶ͢Δɻ Similar to Kanban system, the number of tasks on each steps limits to N. 2 2 2 1 Work-in-progress 13೥8݄8೔໦༵೔
28. “Kan ban” = Signboards ؃
    ൘ ͔Μ͹Μํࣜ Kanban system ݟ͑ΔԽ visualization λεΫϘʔυ Taskboards ,BOCBO
    Ϙʔυ Kanban boards in Scrum in Kanban in Toyota Today’s Topic ຊ೔ͷςʔϚ 13೥8݄8೔໦༵೔
29. Scrum Jeff Sutherland Ken Schwaber δΣϑɾαβʔϥϯυ έϯɾγϡΤΠόʔ 13೥8݄8೔໦༵೔
30. 4DSVN
    JT
    TJNQMF
    GSBNFXPSL Scrum "SUJGBDUT .FFUJOHT 3PMFT 1SPEVDU #BDLMPH 4QSJOU #BDLMPH #VSOEPXO $IBSU 4QSJOU 1MBOOJOH %BJMZ 4DSVN 4QMJOU 3FWJFX 1SPEVDU 0XOFS 4DSVN .BTUFS 5FBN (C) Jeff Sutherland 1993-2010 translated by Yasunobu Kawaguchi 2011 Scrum in 10 minutes 13೥8݄8೔໦༵೔
31. Scrum in 10 minutes 13೥8݄8೔໦༵೔
32. Task Board ToDo In Progress In Review Done Backlog 13೥8݄8೔໦༵೔
33. Sprint & Velocity ToDo In Progress In Review Done Backlog 2 2 1 2 3 1 Velocity εϓϦϯτظؒʹ࡞ΕΔྔΛ༧ଌ͢Δ ϕϩγςΟ 'PSFDBTU
    )PX
    NBOZ
    QPJOUT
    DBO
    CF
    EPOF
    7FMPDJUZ 13೥8݄8೔໦༵೔
34. “Kan ban” = Signboards ؃
    ൘ ͔Μ͹Μํࣜ Kanban system ݟ͑ΔԽ visualization λεΫϘʔυ Taskboards ,BOCBO
    Ϙʔυ Kanban boards in Scrum in Kanban in Toyota Today’s Topic ຊ೔ͷςʔϚ 13೥8݄8೔໦༵೔
35. Toyota Production System Lean Lean Software Development Kanban Lean Startup Agile Scrum XP The New New Product Development Game Four steps to the epiphany Agile and Lean Startup Patterns Manufacturing Industry in Japan 13೥8݄8೔໦༵೔
36. Toyota Production System Lean Lean Software Development Kanban Lean Startup Agile Scrum XP The New New Product Development Game Four steps to the epiphany Agile and Lean Startup Patterns Manufacturing Industry in Japan Production System ੜ࢈γεςϜ Product Development ੡඼։ൃ 13೥8݄8೔໦༵೔
37. Production System Product Development ੜ࢈γεςϜ ੡඼։ൃ /FWFS
    CVJME TBNF
    UIJOH
    JO
    UIF
    GVUVSF /FFE
    UP
    QVU
    BMM
    PG
    TLJMMT
    JOUP
    QSPEVDU
    BOE
    TPMWF
    QSPCMFNT
    JOOPWBUJWFMZ *ODSFBTF
    TUBCJMJUZ BOE
    QSFEJDUBCJMJUZ JNQSPWF
    CZ
    MFBSOJOH
    PO
    FBDI
    VOJUT )JHI
    VODFSUBJOUZ EFNBOET
    BSF
    DIBOHJOH 13೥8݄8೔໦༵೔