1. VPOEãšã¯äœãïŒ
VPOEã¯ãé²è¡äžã®ãããžã§ã¯ããããžãã¹ã®æŠèŠã詳现ã«ææ¡ãã管çããããã®äŸ¿å©ãªããŒã«ã§ããVPOEã¯ããã®ååã瀺ãéããããžã§ã³ïŒVisionïŒãèšç»ïŒPlanïŒãç®æšïŒObjectivesïŒãæå¹æ§ïŒEffectivenessïŒã®4ã€ã®èŠçŽ ãçµã¿åããããã®ã§ããããã®èŠçŽ ã¯çµç¹ã®ããžã§ã³ãå ·äœçãªèšç»ãšç®æšã«èœãšã蟌ã¿ãäºæ¥ã®æå¹æ§ãè©äŸ¡ããããã®éèŠãªåºç€ã圢æããŠããŸãã
1.1 VPOEã®æŠèŠ
äžè¬çã«ãVPOEã¯çµç¹ããããžã§ã¯ããç«æ¡ããå®è¡ãè©äŸ¡ãŸã§å šãŠã®ããã»ã¹ãäžå çã«ç®¡çããããã®ãã¬ãŒã ã¯ãŒã¯ãšããŠäœ¿ãããŠããŸããVPOEã§ã¯ãããžã§ã³ãèšå®ããããšããå§ãŸãããã®ããžã§ã³ã«åºã¥ããŠå ·äœçãªèšç»ãç«ãŠãç®æšãèšå®ããŸãããããŠãå®ããããç®æšãéæããããã©ãããè©äŸ¡ããããšã§ãäºæ¥ã®æå¹æ§ã客芳çã«å€æããããšãå¯èœã«ãªããŸãã
1.2 VPOEã®ç®çãšå©çšã·ãŒã³
äž»ãªç®çãšããŠã¯ãçµç¹ãæãææãéæããããã®éçãæ確ã«ãããã®é²è¡ç¶æ³ãææ¡ããããšãæããããŸããå ·äœçãªå©çšã·ãŒã³ãšããŠã¯ãæ°ããããžãã¹ã®ç«ã¡äžããæ¢åäºæ¥ã®èŠçŽããæŠç¥çå®ã»åçå®ããããžã§ã¯ãã®é²è¡ç®¡çãªã©ãããããå Žé¢ã§æŽ»çšããããšãå¯èœã§ããç¶æ³ã課é¡ã«å¿ããŠVPOEãé©çšããããšã§ãæå¹ãªçµæãå°ãåºãããšãæåŸ ã§ããŸãã
2. VPOEã®åºæ¬èšå®ãšæäœæ¹æ³
ãã®ã»ã¯ã·ã§ã³ã§ã¯ãVPOEã®åºæ¬çãªèšå®ãšæäœæ¹æ³ã«ã€ããŠè©³ãã解説ããŸããããã«ãããVPOEãããçç·Žçã«äœ¿ãããªãæè¡ã身ã«ã€ããããšãå¯èœã«ãªããŸãã
2.1 VPOEã®èšå®æé
VPOEã®èšå®æé ã¯éåžžã«ã·ã³ãã«ã§çŽæçã§ããæåã«ãVPOEã®ãŠã§ããµã€ããã¢ããªãããã°ã€ã³ããŸãããã°ã€ã³åŸãåæèšå®ç»é¢ããåçš®èšå®ãè¡ã£ãŠãããŸããå ·äœçã«ã¯ããããã¯ãŒã¯èšå®ãã»ãã¥ãªãã£èšå®ãããžã¥ã¢ã«èšå®ãªã©ã®åºæ¬çãªé ç®ãå®çŸ©ããŸãã
ãããã®èšå®ã¯ãããžã¥ã¢ã«ã€ã³ã¿ãŒãã§ãŒã¹äžã§çŽæçã«è¡ãããšãã§ããŸããåé ç®ã¯æ確ã«ã©ãã«ä»ããããŠãããVPOEã®åºæ¬çãªåŽé¢ãç解ããã°è¿ éã«èšå®ãå®äºããããšãå¯èœã§ãã
2.2 VPOEã®æäœæé ã®è©³çŽ°
VPOEã®æäœã¯ãåºæ¬çã«èšå®ç»é¢ãæäœããã«ããè¡ãããšãã§ããŸããããã§ã¯ãåæ©èœã䜿çšããããã®åºæ¬çãªæé ã解説ããŸãã
ãŸããããã·ã¥ããŒãããæäœãããæ©èœãéžæããŸããç¶ããŠãéžæããæ©èœã«å¯Ÿããæäœãè¡ãç»é¢ã«é·ç§»ããŸããããã§ãå¿ èŠãªæäœãå®è¡ã§ããŸããäŸãã°ãæ°ããªããŒã¿ã®è¿œå ãæ¢åã®ããŒã¿ã®ç·šéãåé€ãèšå®ã®å€æŽãªã©ãå«ãŸããŸãã
æäœãå®äºããããé©çšãŸãã¯ä¿åãã¿ã³ãæŒãããšã§å€æŽãåæ ãããŸãããããã¯å šãŠããžã¥ã¢ã«ã€ã³ã¿ãŒãã§ãŒã¹äžã§è¡ãããšãã§ããå®è¡ãããã³ã«å³æã«çµæã確èªããããšãã§ããŸãã
VPOE ã¯ãåããŠäœ¿çšãããŠãŒã¶ãŒã§ã䜿ããããããã«ãã·ã³ãã«ã§çŽæçãªãã¶ã€ã³ãšæäœæãæã£ãŠããŸãã
3. VPOEã®å ·äœçãªæŽ»çšæ¹æ³
VPOEã¯ãã®æè»æ§ãšã«ã¹ã¿ãã€ãºæ§ããå€å²ã«ãããåéã§æŽ»çšããããšãå¯èœã§ããVPOEã®å ·äœçãªæŽ»çšæ¹æ³ã解説ããŸãã
3.1 VPOEãçšããå ·äœçãªäºäŸ
ãŸãå ·äœçãªæŽ»çšäŸãšããŠãæãäžè¬çãªã®ã¯éä¿¡ãããã¯ãŒã¯ã®æ§ç¯ã§ããVPOEã掻çšããŠãäŒæ¥ãåŠè¡æ©é¢å ã®éä¿¡ãããã¯ãŒã¯ãæè»ã«æ§ç¯ã§ããŸãããã®å ŽåãVPOEã¯è€æ°ã®ç©ççãªããã€ã¹ãæããäžã€ã®ãããã¯ãŒã¯ãšããŠåäœããã圹å²ãæ ããŸããããã«ãããé«éãã€å®å®ããéä¿¡ãå¯èœãšãªããæ å ±ã®ã·ãŒã ã¬ã¹ãªå ±æãå®çŸããŸãã
次ã«ãããŒã¿ã»ã³ã¿ãŒã§ã®ãããã¯ãŒã¯ç®¡çãVPOEã®æŽ»çšäŸã§ããVPOEãçšããããšã§ã倧èŠæš¡ãªããŒã¿ã»ã³ã¿ãŒã§ããšã³ããŠãŒã¶ãŒã«å¯ŸããŠå®å®ãããµãŒãã¹ãæäŸã§ããŸããããã¯ãVPOEã®åªããæ¡åŒµæ§ãšã¹ã±ãŒã©ããªãã£ã«ãããã®ã§ãæ¥éã«å¢å€§ããããŒã¿éã«å¯Ÿå¿ããããšãå¯èœã§ãã
3.2 äºäŸããèŠãVPOEã®ã¡ãªãã
ããŠããããã®å ·äœçãªæŽ»çšäŸããVPOEã®ã¡ãªãããèããŠã¿ãŸããæ倧ã®ã¡ãªãããšèšããã®ã¯ããã¯ããã®æè»æ§ãšã¹ã±ãŒã©ããªãã£ã§ããããéä¿¡ãããã¯ãŒã¯ã®æ§ç¯äŸãèŠãã°åããéããVPOEã¯ç©ççãªå¶çŽã«ãšããããããšãªããããã¯ãŒã¯ãæ§ç¯ããé«éãªéä¿¡ãå¯èœã«ããŸãã
ãŸããããŒã¿ã»ã³ã¿ãŒã§ã®æŽ»çšäŸããã¯ãVPOEã倧èŠæš¡ãªããŒã¿éãæ±ãç¶æ³ã§ãã¹ã ãŒãºã«æ©èœããããšã䌺ããŸããããã¯ãVPOEãããŒã¿ã®æµéãå¹ççã«ç®¡çããä¿¡é Œæ§ã®é«ããµãŒãã¹ãä¿èšŒããèœåã«ãããã®ã§ãã
ãããã®ã¡ãªããã¯ãVPOEãããžãã¹ãç 究ãªã©ãå€å²ã«ãããåéã§æŽ»çšãããéèŠãªèŠçŽ ã§ããç解ãšæŽ»çšãæ·±ããããšã§ãããå¹æçãªéä¿¡ãããã¯ãŒã¯ã®æ§ç¯ã«ã€ãªããã§ãããã
4. VPOEã®å¿çšãã¯ããã¯
倧ããªéèŠæ§ãæã€ã®ããVPOEã«ãããé«åºŠãªæ©èœã®å©çšã§ãããããã¯äžèŠãããšé£è§£ã«æãããããããŸããããç解ããã°ãã®ãã¯ãã«ããšæŽ»çšã®å¹ ãåºãããŸãã
4.1 VPOEã§å®çŸã§ããé«åºŠãªæ©èœ
VPOEã«ã¯ãåºæ¬èšå®ãè¶ ããé«åºŠãªæ©èœãå€æ°ååšããŸãããã®äžéšã玹ä»ããŸãããã
æåã«æ³šç®ãã¹ãã¯ãããŒã¿ãã£ã«ã¿ãªã³ã°ã®æ©èœã§ããããã¯äžå ã®ããŒã¿ããå¿ èŠãªãã®ã ããç確ã«æœåºããããã®æ©èœã§ãããã®æ©èœãé§äœ¿ããããšã§ãç¹å®ã®ããŒã¿åæãã¬ããŒãäœæã®æéãå€§å¹ ã«ççž®ããããšãå¯èœãšãªããŸãã
次ã«ããããã¯ãŒã¯èªåæ§ç¯ã®æ©èœã§ããèªåã§å¿ èŠãªãããã¯ãŒã¯ãèšå®ããããã«åºã¥ãç°å¢æ§ç¯ãè¡ãããšãã§ããŸããããã¯ãç¹ã«ãããã¯ãŒã¯ç®¡çã倧èŠæš¡ãªãããã¯ãŒã¯éçºã«é¢ãã人ã ã«æçãªæ©èœã§ãã
ããã«ãé«åºŠãªã»ãã¥ãªãã£èšå®ã®æ©èœãéèŠã§ããç¹å®ã®æ»æããä¿è·ããããã®èšå®ãããŠãŒã¶ãŒããšã®ã¢ã¯ã»ã¹å¶éã匷åããããšãå¯èœã§ãã
4.2 é«åºŠãªæ©èœãå©çšããå¿çšäŸ
ããã§ããããã®é«åºŠãªæ©èœãããã«æŽ»çšãããã«ã€ããŠã®å ·äœçãªäºäŸãèŠãŠã¿ãŸãããã
ããŒã¿ãã£ã«ã¿ãªã³ã°ã®æ©èœã¯ã倧éã®å©çšè ããŒã¿ããç¹å®ã®åŸåãæã€ãŠãŒã¶ãŒãèŠã€ãåºãããã«äœ¿ããŸããããã¯ããŒã±ãã£ã³ã°æŠç¥ã®çå®ãæ°è£œåã®éçºã«è²¢ç®ããŸãã
ãããã¯ãŒã¯èªåæ§ç¯ã®æ©èœã¯ãäŸãã°æ°äºæ¥ã®ç«ã¡äžããå¢å¡æã«è¿ éã«å¿ èŠãªãããã¯ãŒã¯ç°å¢ãæŽããããšãã§ããŸãã
ãŸããé«åºŠãªã»ãã¥ãªãã£èšå®ã®æ©èœãå©çšããããšã§ãéèŠãªããŒã¿ãä¿è·ããäžéšã®ç¹æš©ãŠãŒã¶ãŒã®ã¿ã«ã¢ã¯ã»ã¹èš±å¯ãäžããããšãã§ããŸããç¹ã«ãéèŠãªäŒæ¥æ å ±ãã«ã¹ã¿ããŒããŒã¿ã管çããŠããæã«éèŠãšãªããŸãã
ãããã®æ©èœã¯ãVPOEãåãªãããŒã«ã§ã¯ãªããäžæ®µäžã®ã¬ãã«ã§æŽ»çšããããã®æ¹æ³ãæäŸããŠãããŸãã
5. VPOEã®ãã©ãã«ã·ã¥ãŒãã£ã³ã°
ãã¯ãããžãŒãšæ¥ããæãç¹ã«åããŠæ¥ããæããã©ãã«ã¯é¿ããããŸããããããããããã®åé¡ãžã®ç解ã解決çãåŸãããšã¯ãæç床ãäžæ®µéåŒãäžããéèŠãªäžæ©ã§ããVPOEããŸãäŸå€ã§ã¯ãããŸããã
5.1 ãããããã©ãã«ãšãã®è§£æ±ºæ¹æ³
VPOEã«ãããäžè¬çãªãã©ãã«ã¯ãæ¥ç¶ãšã©ãŒãæ§æã®èª€ããã·ã¹ãã ã®ã¬ã¹ãã³ã¹ã®é 延ãªã©ããããŸããã©ãã䜿çšè ã«ãã©ã¹ãã¬ãŒã·ã§ã³ãæããããåå ãšãªããŸãã
æ¥ç¶ãšã©ãŒã«ã€ããŠããã®åé¡ã¯ãã°ãã°VPOEã®IPã¢ãã¬ã¹ãããŒãçªå·ã®èšå®ã«é¢é£ããŠããŸãã解決çãšããŠããŸãèšå®å€ã®ç¢ºèªãè¡ããŸããæ£ç¢ºãªIPã¢ãã¬ã¹ãšããŒãçªå·ã䜿çšãããŠããããå確èªããããããä»ã®ããã€ã¹ãã¢ããªã±ãŒã·ã§ã³ãšç«¶åããŠããªããã確èªããŸãã
èšå®ãã¹ã®å Žåãæ§æãã¡ã€ã«ã«èª€ã£ããã©ã¡ãŒã¿ãŒãååšãããããããã¯éèŠãªæ å ±ãæ¬ èœããŠããå¯èœæ§ããããŸããVPOEã®è©³çŽ°èšå®ã¬ã€ããå床確èªãã泚ææ·±ãåèšå®ãã©ã¡ãŒã¿ãŒãæ€èšŒããŸãã
ã·ã¹ãã ã®ã¬ã¹ãã³ã¹ã®é 延ã¯ãéåžžããããã¯ãŒã¯ã®åé¡ããŸãã¯ãªãœãŒã¹ã®äžè¶³ã«ãããã®ã§ãããããã¯ãŒã¯ã®åé¡ã«ã€ããŠã¯ãæ¥ç¶ã®å質ã確èªããå¿ èŠã«å¿ããŠãããã¯ãŒã¯èšå®ã®èŠçŽããè¡ããŸãããªãœãŒã¹ã®äžè¶³ã¯ãã·ã¹ãã ãªãœãŒã¹ã®äœ¿çšç¶æ³ã確èªããå¿ èŠã§ããã°ãªãœãŒã¹ã®å²ãåœãŠãå¢ããããšã§è§£æ¶ã§ããŸãã
5.2 VPOEã®äŸ¿å©ãªãµããŒãæ©èœ
VPOEã§ã¯ãå©çšè ããã楜ãªçµéšãæã€ããšãã§ãããããããã€ãã®ãµããŒãæ©èœãæäŸããŠããŸãããããã¯ãåé¡ãçºçããæã«ç©æ¥µçã«åœ¹ç«ã¡ãäžèšã®ãããªäžè¬çãªåé¡ãžã®å¯Ÿå¿ãæ¯æŽããŸãã
ãŸããã·ã¹ãã ãã°ã«ãããVPOEã®åäœã远跡ããåé¡ãçºçããåå ã調æ»ããããšãå¯èœã§ãã
次ã«ãèšå®ããã¯ã¢ããæ©èœãå©çšããŠãVPOEã®èšå®ãå®æçã«ä¿åã§ããŸããããã«ãããåé¡ãçºçãããšãã«æ©æ埩æ§ãæ¢ç¥ã®è¯å¥œãªç¶æ ãžã®å埩ãå¯èœãšãªããŸãã
ãŸãããªã¢ã«ã¿ã€ã ã®ããã©ãŒãã³ã¹ã¢ãã¿ãªã³ã°æ©èœãåããŠããŸããããã«ããããªãœãŒã¹ã®äœ¿çšç¶æ³ããããã¯ãŒã¯ãã©ãã£ãã¯ãªã©ãèŠèŠçã«ææ¡ã§ããŸãã
ãããã®ãµããŒãæ©èœã®ãããã§ãVPOEã¯äœ¿ãããããèªå·±èšºæãšãã©ãã«ã·ã¥ãŒãã£ã³ã°ã®åºæºãé«ããŠããŸããããã«ãããå¿ èŠãªãšãã«å¿ èŠãªæ å ±ãšãã«ããåŸãããšãã§ããŸãã
6. VPOEã®å°æ¥æ§ãšããžãã¹ã§ã®æŽ»çš
ä»æ¥ã®æ¥é²ææ©ã®æè¡ç°å¢ã®äžã§ãäœã次ã«æ¥ãããäºæ³ããããšã¯é£ãããããããVPOEã®æ·±å±€ã«æ³šç®ããã°ããã®å¯èœæ§ãšéçãæ¢æ±ããéçãèŠããŠãã.
6.1 VPOEã®å±æïŒå¯èœæ§ãšéç
ãŸãã¯ãVPOEã®å¯èœæ§ã«çŠç¹ãåœãŠãŠèŠ³å¯ããããšããå§ããããVPOEã¯ããã®é«åºŠãªæ©èœãšæ¡åŒµæ§ã«ãããå€ãã®åéã§å€§ãã«æŽ»çšãããŠãããããŒã¿ããŒã¹ç®¡çããããã¯ãŒã¯ã»ãã¥ãªãã£ãã·ã¹ãã ç£èŠãšãã£ãå€å²ã«ãããä»»åã¯ãVPOEã§å¹çåã»èªååããããšãã§ããã
äžæ¹ãVPOEã®å¯èœæ§ã¯ç¡éã§ã¯ãªããVPOEã®éçãç解ããããšã¯ãããããåŠã³ãæ·±ããããã§éèŠãšãªããéèŠãªå¶çŽã¯ãVPOEãæšæºçãªãããã³ã«ãšãšã³ããã€ã³ãã®ã¿ããµããŒãããŠããç¹ã§ãããä»ã®ç¹å®ã®æè¡ãžã®å¯Ÿå¿ãå¿ èŠãªå Žåã«ã¯ããããè£å®ããå¥ã®æ¹æ³ãèŠã€ããå¿ èŠãããããŸããVPOEã¯ãã®ç¹æ§äžã倧èŠæš¡ãªãããã¯ãŒã¯æäœã«ã¯ããŸãé©ããŠããªããšããç¹ãçæãã¹ãã ã
6.2 ä»äºãããžãã¹ã§VPOEã掻çšããããã®ãã³ã
ããã§ã¯ä»äºãããžãã¹ã«VPOEãå¹æçã«æŽ»çšããããã®ãã³ããããã€ã玹ä»ãããã
ãŸããVPOEã®ã¹ãã«ã身ã«çããããšããå§ãããããã¯èª°ã§ãã§ããããšã§ããªã³ã©ã€ã³ãã¬ãŒãã³ã°ãã¬ã€ããè±å¯ã«æäŸãããŠãããç¥èãå¢ããã°ãã©ã®ããã«ããžãã¹ç°å¢ã«VPOEãé©çšãã¹ããã®æŽå¯ã身ã«ã€ãã
次ã«ãVPOEã®æŽ»çšãå§ããåã«èªåã®ããŒãºããã£ãããšè©äŸ¡ããVPOEãããã«é©ãã解決çãã©ããã確èªãããå šãŠã®ããŒã¿ããŒã¹ããããã¯ãŒã¯åé¡ãVPOEã«ãã£ãŠè§£æ±ºãããããã§ã¯ãªãããã泚æããŠéžæããå¿ èŠãããã
æåŸã«ãVPOEã掻çšããå Žåã¯ãã»ãã¥ãªãã£ãšæ£ç¢ºæ§ãåžžã«å¿µé ã«çœ®ããVPOEã¯åŒ·åãªããŒã«ã ããäžæ£ç¢ºãªæ å ±ãä¹±æŽãªäœ¿çšã«ãã£ãŠããããã¯ãŒã¯å šäœãå±éºã«ãããããããšãããã
ãããã®ãã³ããé ã«å ¥ããVPOEã®åŒ·åºãªç解ãæã€ããšã§ãããžãã¹ã§ã®æåã«äžæ©è¿ã¥ãããšã ããã
7. VPOEãšä»ã®é¡äŒŒæè¡ãšã®æ¯èŒ
ããã§ã¯ãVPOEãããæ·±ãç解ããããã«ãVPOEãä»ã®é¡äŒŒæè¡ãšæ¯èŒããŠã¿ãŸããããããã«ãããVPOEã®ãŠããŒã¯ãªç¹æ§ãä»ã®æè¡ã«ã¯ãªãç¬èªã®æ©èœã«ã€ããŠç解ãæ·±ãŸããŸãã
7.1 VPOEãšä»ã®æè¡ãšã®å·®å¥åãã€ã³ã
VPOEãä»ã®é¡äŒŒæè¡ãšããã«ç°ãªãããç解ããããšã§ãé©åãªã·ãã¥ãšãŒã·ã§ã³ãåé¡è§£æ±ºã«åœ¹ç«ã€ããŒã«ãéžæã§ããŸãã
VPOEã®äžçªã®ç¹åŸŽã¯ããã®ä»ã®æè¡ãšæ¯èŒããŠãå°éçãªç¥èãå¿ èŠãšããã«ãçŽ æ©ãç°¡åã«æäœãã§ããç¹ã§ãã
ãŸããVPOEãä»ã®æè¡ãšå€§ããç°ãªãç¹ã¯ãæ©èœã®è±å¯ããšããã®æè»æ§ã§ããVPOEã¯é«åºŠãªã«ã¹ã¿ãã€ãºãå¯èœã«ãããŠãŒã¶ãŒãèªèº«ã®ããŒãºã«åãããŠæé©ãªèšå®ãäœæããããšãã§ããŸãã
7.2 VPOEã«ãããä»ã®æè¡ãšã®é£æºå¯èœæ§
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