Why Open Source?

8IZPQFOTPVSDF !$PEF,VTBUTV

0QFO4PVSDF

0QFO4PVSDF ։͔Εͨɺެ։ͷ ʢϓϩάϥϜ౳ͷʣιʔείʔυ

ϓϩάϥϜͷஶ࡞෺ ஶ࡞ݖ๏ୈೋ৚  ेͷೋɹϓϩάϥϜ  ిࢠܭࢉػΛػೳͤͯ͞Ұͷ݁ՌΛಘΔ͜ͱ͕Ͱ͖ΔΑ͏ʹ ͜Εʹର͢ΔࢦྩΛ૊Έ߹Θͤͨ΋ͷͱͯ͠දݱͨ͠΋ͷΛ ͍͏ɻ

ஶ࡞ऀ͸ஶ࡞ऀਓ֨ݖɾஶ࡞ݖΛߦ࢖Ͱ͖Δ    ʢୈेീ৚ʙୈೋे۝৚ ެදݖ ࢯ໊දࣔݖ ಉҰੑอ࣋ݖ ෳ੡ݖ ެऺૹ৴ݖɾެऺૹ৴ՄೳԽݖ ৡ౉ݖ ຋Ҋݖ
ೋ࣍తར༻ͷݖར FUD

lจԽͷൃలzWTt᧒ᥭዲͷ໋ᩆͼሆᠭu ʢ໨తʣ  ஶ࡞ݖ๏ୈҰ৚  ͜ͷ๏཯͸ɺஶ࡞෺ฒͼʹ࣮ԋɺϨίʔυɺ์ૹٴͼ༗ઢ์ૹʹؔ͠ஶ࡞ऀ ͷݖརٴͼ͜Εʹྡ઀͢ΔݖརΛఆΊɺ͜ΕΒͷจԽతॴ࢈ͷެਖ਼ͳར༻ʹ ཹҙͭͭ͠ɺஶ࡞ऀ౳ͷݖརͷอޢΛਤΓɺ΋ͭͯจԽͷൃలʹد༩͢Δ͜ ͱΛ໨తͱ͢Δɻ ஶ࡞෺͕ίϐʔ͞Εͯ޿·Δͷ͸ΈΜͳʹͱͬͯྑ͍͜ͱ ҰํͰɺϑΣΞͳൣғͰஶ࡞ऀͷརӹ͸कΒΕΔ΂͖

ͱͯ΋ੲ

ࠓ $POUSPM $ $POUSPM 7

৘ใഔମͷίετ௿Լ ݖརΛ੾ΓചΓ͢ΔطଘͷϏδωεϞσϧͷ··Ͱ͍͍ͷ͔ʁ ์͓͚ͬͯ͹ஶ࡞෺͸ίϐʔ͞Εͯউखʹ޿͕Δ

0QFO4PVSDF ͦͷࢥ૝ ৘ใʢιϑτ΢ΣΞʣ͸ਓྨͰڞ༗͢΂͖ࡒ࢈ ৽͍͠Ձ஋ͷ૑଄͕ॏࢹ͞ΕΔ΂͖ ͦͷϝϦοτ ੬ऑੑͷ࡞ΓࠐΈ΍ѱҙͷ͋ΔίʔυͷࠞೖͳͲʹ Ұఆͷ఍߅ྗ͕͋Δ ΦʔϓϯΠϊϕʔγϣϯͷॏཁੑ FUD

0QFO4PVSDF ͦͷ৚݅ͷྫʢϥΠηϯεʣ ແอূ ར༻ऀ΍ར༻໨తΛࠩผ͠ͳ͍͜ͱ ιʔείʔυ͕ೖखՄೳͰ͋Δ͜ͱ վม΍࠶഑෍ՄೳͰ͋Δ͜ͱ FUD

Φʔϓϯιʔε։ൃͷ੾ΓޱʹͳΔͭͷϫʔυ

(JU  όʔδϣϯ؅ཧιϑτ΢ΣΞ (JUIVC  (JUIVC JOD͕ఏڙ͢Δ(JUΛར༻ͨ͠8FCαʔϏε

όʔδϣϯ؅ཧ @˓˓ࢿྉEPDY @˓˓ࢿྉEPDY @˓˓ࢿྉ@.෦௕۩ਃ༻EPDY @˓˓ࢿྉ@"ओ೚मਖ਼EPDY ̎̓̌̐̌̔ɹ˓˓ࢿྉɹ.෦௕۩ਃ༻ɹ#܎௕मਖ਼EPD /՝௕ࢦఠ൓өɹɹ˓˓ࢿྉEPDY ʲࢸٸʳ˓˓ࢿྉͷ͜ͷ෦෼Λमਖ਼͍ͯͩ͘͠͞NTH ʜ

όʔδϣϯ؅ཧ ?Ȇ? ඊ᷀ @˓˓ࢿྉEPDY @˓˓ࢿྉEPDY @˓˓ࢿྉ@.෦௕۩ਃ༻EPDY @˓˓ࢿྉ@"ओ೚मਖ਼EPDY ̎̓̌̐̌̔ɹ˓˓ࢿྉɹ.෦௕۩ਃ༻ɹ#܎௕मਖ਼EPD /՝௕ࢦఠ൓өɹɹ˓˓ࢿྉEPDY ʲࢸٸʳ˓˓ࢿྉͷ͜ͷ෦෼Λमਖ਼͍ͯͩ͘͠͞NTH
ʜ

όʔδϣϯ؅ཧ "͞Μ #͞Μ $͞Μ 'PSL 'PSL 1VMM3FRVFTU.FSHF 1VMM3FRVFTU.FSHF

ΦʔϓϯιʔεͷԸܙ ͋ͳͨͷϓϩάϥϜʹ ෆ۩߹͕͋ΔΑ Ͳ͏मਖ਼ͨ͠Β  ͍͍ͱࢥ͏ʁ ͦ͏ͩͶɺྫ͑͹ʜ ࣍ͷΞοϓσʔτͰ  औΓೖΕΔΑ  ͋Γ͕ͱ͏ʂ

ΦʔϓϯιʔεͷԸܙ ͍ͭ΋࢖͍ͬͯΔ͜ ͷϓϩάϥϜɺ͜͜ Λमਖ਼͍ͨ͠ͳ मਖ਼ͯ͠Έ͚ͨͲɺ Ͳ͏ʁ मਖ਼ΛऔΓࠐΜͩΑɺ ͋Γ͕ͱ͏ʂ

ΦʔϓϯΨόϝϯτͷைྲྀ 'FEFSBM4PVSDF$PEF1PMJDZΞϝϦΧ߹ऺࠃιʔείʔυϙϦγʔ    4VCKFDU"DIJFWJOH&⒏DJFODZ 5SBOTQBSFODZ BOE*OOPWBUJPOUISPVHI3FVTBCMF BOE0QFO4PVSDF4PGUXBSF  ʢ࠶ར༻ՄೳͳΦʔϓϯιʔειϑτ΢ΣΞΛͱ͓ͯ͠ޮ཰ੑɾಁ໌ੑɾΠϊϕ ʔγϣϯΛୡ੒͢Δʣ   
l5IJT QPMJDZ BMTP FTUBCMJTIFT B QJMPU QSPHSBN UIBU SFRVJSFT BHFODJFT XIFO DPNNJTTJPOJOHOFXDVTUPNTPGUXBSF UPSFMFBTFBUMFBTUQFSDFOUPGOFX DVTUPNEFWFMPQFEDPEFBT0QFO4PVSDF4PGUXBSF 044 GPSUISFFZFBSTz  ಠࣗௐୡͷίʔυʹ͍ͭͯ࠷௿Ͱ΋ΛΦʔϓϯιʔειϑτ΢ΣΞͱͯ͠Ϧ Ϧʔε͢Δ     IUUQTTPVSDFDPEFDJPHPW 

Why Open Source?

Why Open Source?

KamataRyo

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8IZPQFOTPVSDF !$PEF,VTBUTV

0QFO4PVSDF

0QFO4PVSDF ։͔Εͨɺެ։ͷ ʢϓϩάϥϜ౳ͷʣιʔείʔυ

ϓϩάϥϜͷஶ࡞෺ ஶ࡞ݖ๏ୈೋ৚  ेͷೋɹϓϩάϥϜ  ిࢠܭࢉػΛػೳͤͯ͞Ұͷ݁ՌΛಘΔ͜ͱ͕Ͱ͖ΔΑ͏ʹ ͜Εʹର͢ΔࢦྩΛ૊Έ߹Θͤͨ΋ͷͱͯ͠දݱͨ͠΋ͷΛ ͍͏ɻ

ஶ࡞ऀ͸ஶ࡞ऀਓ֨ݖɾஶ࡞ݖΛߦ࢖Ͱ͖Δ    ʢୈेീ৚ʙୈೋे۝৚ ެදݖ ࢯ໊දࣔݖ ಉҰੑอ࣋ݖ ෳ੡ݖ ެऺૹ৴ݖɾެऺૹ৴ՄೳԽݖ ৡ౉ݖ ຋Ҋݖ

ͱͯ΋ੲ

ࠓ $POUSPM $ $POUSPM 7

৘ใഔମͷίετ௿Լ ݖརΛ੾ΓചΓ͢ΔطଘͷϏδωεϞσϧͷ··Ͱ͍͍ͷ͔ʁ ์͓͚ͬͯ͹ஶ࡞෺͸ίϐʔ͞Εͯউखʹ޿͕Δ

0QFO4PVSDF ͦͷࢥ૝ ৘ใʢιϑτ΢ΣΞʣ͸ਓྨͰڞ༗͢΂͖ࡒ࢈ ৽͍͠Ձ஋ͷ૑଄͕ॏࢹ͞ΕΔ΂͖ ͦͷϝϦοτ ੬ऑੑͷ࡞ΓࠐΈ΍ѱҙͷ͋ΔίʔυͷࠞೖͳͲʹ Ұఆͷ఍߅ྗ͕͋Δ ΦʔϓϯΠϊϕʔγϣϯͷॏཁੑ FUD

0QFO4PVSDF ͦͷ৚݅ͷྫʢϥΠηϯεʣ ແอূ ར༻ऀ΍ར༻໨తΛࠩผ͠ͳ͍͜ͱ ιʔείʔυ͕ೖखՄೳͰ͋Δ͜ͱ վม΍࠶഑෍ՄೳͰ͋Δ͜ͱ FUD

Φʔϓϯιʔε։ൃͷ੾ΓޱʹͳΔͭͷϫʔυ

(JU  όʔδϣϯ؅ཧιϑτ΢ΣΞ (JUIVC  (JUIVC JOD͕ఏڙ͢Δ(JUΛར༻ͨ͠8FCαʔϏε

όʔδϣϯ؅ཧ @˓˓ࢿྉEPDY @˓˓ࢿྉEPDY @˓˓ࢿྉ@.෦௕۩ਃ༻EPDY @˓˓ࢿྉ@"ओ೚मਖ਼EPDY ̎̓̌̐̌̔ɹ˓˓ࢿྉɹ.෦௕۩ਃ༻ɹ#܎௕मਖ਼EPD /՝௕ࢦఠ൓өɹɹ˓˓ࢿྉEPDY ʲࢸٸʳ˓˓ࢿྉͷ͜ͷ෦෼Λमਖ਼͍ͯͩ͘͠͞NTH ʜ

όʔδϣϯ؅ཧ ?Ȇ? ඊ᷀ @˓˓ࢿྉEPDY @˓˓ࢿྉEPDY @˓˓ࢿྉ@.෦௕۩ਃ༻EPDY @˓˓ࢿྉ@"ओ೚मਖ਼EPDY ̎̓̌̐̌̔ɹ˓˓ࢿྉɹ.෦௕۩ਃ༻ɹ#܎௕मਖ਼EPD /՝௕ࢦఠ൓өɹɹ˓˓ࢿྉEPDY ʲࢸٸʳ˓˓ࢿྉͷ͜ͷ෦෼Λमਖ਼͍ͯͩ͘͠͞NTH

όʔδϣϯ؅ཧ "͞Μ #͞Μ $͞Μ 'PSL 'PSL 1VMM3FRVFTU.FSHF 1VMM3FRVFTU.FSHF

ΦʔϓϯιʔεͷԸܙ ͋ͳͨͷϓϩάϥϜʹ ෆ۩߹͕͋ΔΑ Ͳ͏मਖ਼ͨ͠Β  ͍͍ͱࢥ͏ʁ ͦ͏ͩͶɺྫ͑͹ʜ ࣍ͷΞοϓσʔτͰ  औΓೖΕΔΑ  ͋Γ͕ͱ͏ʂ

ΦʔϓϯιʔεͷԸܙ ͍ͭ΋࢖͍ͬͯΔ͜ ͷϓϩάϥϜɺ͜͜ Λमਖ਼͍ͨ͠ͳ मਖ਼ͯ͠Έ͚ͨͲɺ Ͳ͏ʁ मਖ਼ΛऔΓࠐΜͩΑɺ ͋Γ͕ͱ͏ʂ

ΦʔϓϯΨόϝϯτͷைྲྀ 'FEFSBM4PVSDF$PEF1PMJDZΞϝϦΧ߹ऺࠃιʔείʔυϙϦγʔ    4VCKFDU"DIJFWJOH&⒏DJFODZ 5SBOTQBSFODZ BOE*OOPWBUJPOUISPVHI3FVTBCMF BOE0QFO4PVSDF4PGUXBSF  ʢ࠶ར༻ՄೳͳΦʔϓϯιʔειϑτ΢ΣΞΛͱ͓ͯ͠ޮ཰ੑɾಁ໌ੑɾΠϊϕ ʔγϣϯΛୡ੒͢Δʣ