SIerã®åé¡ç¹
ä¸éä¸è¬ã§ã¯ãSIerã¯éå¹çãããã°ã©ãã®ã¹ãã«ãé ·ããã¬ã©ãã´ã¹åãã¦ããçãè©å¤ãæªãè¢å©ãã«ãã£ã¦ããããã§ããå®éã«ã¯ã°ãã¼ãã«æ°´æºã§æ¦ããé«ã¹ãã«è ã¯ããããç¹ã«æ親ä¼ç¤¾ã®äººéã¯ã¿ãªé ã®å転ãéãããå¿ãé«ãã§ãã
ä¸æ¹ã§ç§ã®5å¹´ããããã®çãçµé¨ã®ä¸ã§ããä¸éã®è©å¤éããéçºç¾å ´ã®ä¿¡ããããªããããªä½ãããã£ã·ããããããè¦ã¦ãã¾ããããããç«æ´¾ãªçæ¿ã®è£ã§ã®ããã¼ãè¨è¨å®è£
ããã¹ç etc...
(ç§ã人ã®ãã¨ãè¨ããªãã§ããã»ã»ã»)
ããã§ãç§ã®è¦ããç¯å²ã®ä¸çã§ãã©ããã¦ãã®ãããªç¾ç¶ãªã®ãèãã¦ã¿ã¾ããã
(ç§ã®è¦ããç¯å²ãªã®ã§ãä»ç¤¾ã ã¨å
¨ãç¶æ³ã¯éãã ããããä»è
ã«ã¯éã£ãä¸çãè¦ãã¦ããããããã¾ããã)
SIerã®åé¡ç¹
1. æè¡ååä¸ã®ã¤ã³ã»ã³ãã£ããå°ãªãæããæ大ã®åå ã¯ããã§ã¯ãªããã¨æãã¾ããè¦ããã«ãå¿ æ»ã«æè¡åã磨ãã¤ã³ã»ã³ãã£ããä¹ããã®ã§ããä¾ãã°ãç§ã®ã°ã«ã¼ãã§ã¯ãããããã®ã¡ã³ãã®æé給ã示ããã¾ãããæ¡ãéããããé«ã¹ãã«ãªäººã¨ãä»äººã®æå©ããå¿ è¦ãªãºã¼ãºã¼ã®æ°äººã§ãããããã1.xåã«ãããªãã¾ãããã¹ãã«ã磨ãã¦ãããè½åãæã£ã¦ãã¦ããã¾ãã§å¯¾æ°é¢æ°ã®æ¥µéã«è¿ã¥ãããã«ããããã¦åéããããã¾ããã(ãã¡ããããã»ããä¾¡æ ¼ãã¨ãããã¨ãããã¨æãã¾ããã»ã»ã»)
ããããã¨ãå¿ æ»ã«ã¹ãã«ã磨ãã¦ãã¹ã ã¼ãºã«ä»äºãé²ãããããããåæ¹ä»äºã§ãè¯ããããBPããã£ã±ãå¼ãé£ãã¦ãã(æè¡ããããã¼ã¸ã¡ã³ãã®ã»ãã稼ãã)ãã¨ãªããã(å®éã«ãã£ã¦ããã¨ã¯ããã¼ãã¦ã)ãçä¸ããã¸ã§ã¯ãã§åæ¥åºå¤ãç¹°ãè¿ããã»ããéã稼ãã¦ãã¾ãã¾ããã¾ããåé交æ¸ãé£ãããããã ãæ°%ã®åéãä¸ããã ãã§ã大é¨ãã§ãã(ãããã«ååã§ä¸æ¬å¼ãããããããçªåºããã¨ãä¾¡æ ¼äº¤æ¸ãã§ããããããã¾ãããã»ã»ã»ã)
ãã¡ããã人ã®è©ä¾¡ã«æããæ£è§£ã¯ãªããããââåã®è½åããªãã¦å®éçã«æ¸¬ãã¾ããããã½ããã¦ã§ã¢éçºã®ä»äºã¯å°éçã§æ¥µãã¦é£ãããç¾å®ã«å質ãçç£æ§ã«æ¯è¼ã«ãªããªãå·®ãåºã¾ãããããããå°ãè©ä¾¡ãã¦ãåéã®ä¸éã¨ä¸éã®ã¡ãªããªããã£ã¦ãè¯ãã§ã¯ãªãããªãã¨ç´ æ´ã«æãã¾ãã
ã¾ãããããæ¥æ¬çã§ãããéç¨å¶åº¦ã硬ç´ç=ä¼¼ããããªäººãã¡ã§ãçæ¿ãå¤ããªããä¼¼ããããªãã¨ãç¹°ãè¿ããã¿ã³ããåã®ä¿é²ãã¨ããåé¡ãããããã¹ãã«ç£¨ãã¦ãããææç©ãåºãããããæåãªââããã¨ä»²è¯ããªã£ã¦ãä»äºãã¦ããµãããããæ¹ãããªããè©ä¾¡ãããããã¾ããå®éã«ã¯ãã¾ã¨ãã«ä¸äººã§ä»äºãã§ããªãã¦ããã§ãã
(ãã¡ãããã¾ããã®äººã¯ã¿ããªãããããã¦ãã®ã§ãããã¹ãã«ãå®éçã«æ¸¬ããã¹ã¯ãªããè¦ãããå¨ããã©ãã«ãããã®ã§ããã®ã¾ã¾ã§ãã)
å®éã«ç§ãæããã¸ã§ã¯ãã«åç»ããã¨ãã«ãªã¼ãã¼ã«ãå®ã£ã¦ãããããããã¨è¨ããã¾ããããç§ã¯ãã®è¨èã«é常ã«é ã«ãã¾ãããå°å¦æ ¡ã®ä»²è¯ãã¯ã©ãããããã¾ããããã®äººã®ææç©ãè²¢ç®åº¦çã§å¤ããã©ããã¯å¤æãã¹ãã§ããã以ä¸ã§ãããã以ä¸ã§ããªãã¯ãã§ãããã ãã§ãå¹³çã«ãã£ã³ã¹ãä¸ãããã¨ããã®ã¨ãç§æ
ãæ©æ
ãã¯éãã¾ãã
(ä½è«ã§ãããã失æã®æ¬è³ªãã¨ããæ¸ç±ãèªã¿ã¾ãããããã®å½ã¯ä½åå¹´ãåãããæ¬è³ªçãªã¨ããã¯ä½ãå¤ãã£ã¦ããªãããã§ãã»ã»ã»ããã¶ããæ°ç¾å¹´åä½ã§å¹ããã¦ããæ¥æ¬äººã®åºæ¬çãªæ§è³ªãªã®ã§ã¯ã)
2. ã½ããã¦ã§ã¢éçºã®æè¡åã«å¯¾ããã³ã¢ã³ã»ã³ã¹ããªã
ã1.ãã¨å¯æ¥ã«çµã³ã¤ãã¦ããã¨æãã¾ããããã½ããã¦ã§ã¢éçºã®æè¡åãã¨ããè¨èã«å¯¾ããã³ã¢ã³ã»ã³ã¹ããªãã¨ããã®ãã大ããªåé¡ã§ããè¦ããã«ããªãã ãããããªãã®ã§è©ä¾¡ã§ããªããã®ã§ããåéã対æ°é¢æ°çã«ããä¸ãããªãã®ããã¹ãã«ã¬ãã«ã®å·®ã«ãããçç£æ§ãå質ãæ¡éãã«å¤ããã¨ããç¾å®ãããããªãã®ã§ãèããã®ãæ¾æ£ãã¦ããã§ã¯ãªããã¨çã£ã¦ãã¾ãã
ç§ã®å ´åã¯ããã¾ãã¾ä¸å¸ãå
輩ã天ç¶è¨å¿µç©ã¿ãããªäººã§ãã½ããã¦ã§ã¢ã®æè¡(ãã¶ã¤ã³ãã¿ã¼ã³ãã¢ã¼ããã¯ãã£ãã¿ã¼ã³çã®OOPã並è¡å¦çãRDBMSã®ã¢ã¼ããã¯ãã£ãè¤éãªã½ããã¦ã§ã¢ã®è¨è¨ etc...)ã«å¼·ãããã£ã¤ãæãè¾¼ã¾ãã¦ãæªããä»äºã°ããä»»ããããã®ã§ããããæ¹åã«é²ãã§ãã¾ãã¾ããããã¡ãããææ³ãAPIããã¬ã¼ã ã¯ã¼ã¯ããã¼ã«ã®ä½¿ãæ¹ãç¥ã£ã¦ããã®ãéè¦ã§ãããã½ããã¦ã§ã¢éçºã«ãããæè¡åã¯ãã¢ã¼ããã¯ãã£ãæèæ³ãè¨è¨ææ³çãã©ãã ã身ã«ã¤ãã¦ããããéè¦ã§ãã£ã¦ãã©ããªéå
·ããã¤ãã§ãããã¯ãããã¾ã§éè¦ã§ã¯ãªãã¯ãã§ãã
(ã³ã³ããã¹ããã¨ã«ãæé©ãªãã®ãé¸ã¶ã ãã)
ãã®ãããªãã½ããã¦ã§ã¢éçºã®æè¡åãã«å¯¾ããã³ã¢ã³ã»ã³ã¹ããªãã®ã§ããé »ç¹ã«æ´æ°ãããã«ã©ã ã«ã¤ã³ããã¯ã¹ãå¼µã£ã¦æ§è½å£åã§å¤§é¨åãã¨ãããããããããªããããã¨ããããsynchronizedãã¡ããããããä¿å®æ§ã責åã®åå²ããã£ããã®ã§ãªãã¯ã©ã¹è¨è¨ãçã®ç®ãçããããªããããªææç©ãæ·æ±°ãããªãã®ã ã¨æãã¾ããå¥ã«é£ãããã¨ãããå¿ è¦ã¯ãªãããå½ããåã®ãã¨ãå½ããåã«ããããã¨ãéè¦ãªã®ã§ã¯ã»ã»ã»ã
è¬ã®è³æ ¼ä¿¡ä»°ããæããã³ã¢ã³ã»ã³ã¹ããªããã¨ãåå ã§ãã¨ããããå½å®¶è³æ ¼ããã³ãã¼ã®è³æ ¼ã¨åããã¦ã墨ä»ããå¾ããã¨ãããã¨ãªã®ã§ãããã
(ä½è«ã§ãããæ社ã®P-CDPã¯ããã¹ãåå¼·ã®ãããããªãã極ãã¦å®è·µçã ã¨æãã¾ããã)
3. åºæ¬çã«å¤æ³¨ã§ãã
ããããã1.ãã2.ãã¨å¯æ¥ã«é¢ãã£ã¦ãã¾ããåºæ¬çã«å¤æ³¨ãªã®ã§ã人ãé¸ã¹ãªãã®ã§ãããã¡ãããããã§ã³ã¸ã§ï¼ãããªãããã§ã¯ãªãã§ãããä¼ç¤¾éã®é¢ä¿ããããã次ã®äººãé½åããæã¾ãããããªããç¾å®ã«ç®ã®åã«ä»äºãããã®ã§ãçµå±ãããã人ã«åããããããæ¹ãããããå¾ã¾ããããã¡ããããä½ãæ¹ãã«ã§ãã
ããããç§ãçç²ã®æ¥æ¬äººãªã®ã§ãããã¾ãã¯ã£ãããã®ãè¨ãããä»ã¡ã³ãã¨ã®é¢ä¿ãæªãããªãããã«ããã¾ãåãç¹ããªããä»äºãé²ãããè² ããªããªãã¾ãã
å¤æ³¨ãªã®ã¯ããã¦ãã¦ã®èç©ãå
±æã®ä¸ã§ã大ããªé害ã¨ãªã£ã¦ãã¾ããããããã®ããã¸ã§ã¯ãã«æ°äººãã¤ã§å¸¸é§ããæ°ãæã«ä¸åãæã¡åããã§éåããæããªã®ã§ãããæ°ã®ãã人ã¯åæã«ä¼¸ã³ã¾ãããããã§ãªã人ã¯ãã¤ã¾ã§ãæ¾ç½®ã§ä¸åã«æ¹åããã¾ããããåªç§è
ã»ã©æã¡åããã«åå ã§ããªãã®ã常ãªã®ã§ãã¾ãã¾ãæ
å ±å
±æã®å ´ããªããªã£ã¦ããã¾ãã
(ãã®ãã¨ã«æ°ã¥ããç§ã¯ãæè¿ãã¡ã¼ã«ã§ãã¦ãã¦ãããåãããããã«ãã¦ãã¾ãããããªãé éå°ã«ãã¦ãæ
å ±å
±æã§ãã¾ãã)
4. ããã»ã¹éè¦ã§ãã
ã¨ã«ããããã»ã¹éè¦ã§ããä½ãä½ã§ãããã¡ãããéçºããã»ã¹ã¯å¿
è¦ã§ãããç¡è¶è¦è¶ãªã«ã¦ãã¼ã¤ããã°ã©ãã³ã°ã称è³ããããã§ã¯ãªãã§ãããæ段ãç®çåãã¦ãããè¨å¤§ãªã³ã¹ãããããå²ã«ã¯ãã ãããããããªããã¨ãéã
ããã¾ããããããããããããã»ã¹éãä»äºãé²ãã¦ãããã¨ç§°è³ãããå¾åããããã¾ãã
ãã¶ãã責任ãè² ããããªããä¸ç¢ºå®æ§ãæãã¨ãããã¨ãªã®ã§ããããã顧客ä¸å¨ã®èªå·±ä¿èº«çãªä»äºã§ãçç£æ§ãä½ããã£ããã®ã§ã¯ãªãã§ãã
ã©ããã¦ãããªã®ã?
ç§ãæãã«ã¯ãåè¿°ãããã¹ã¦ã®åé¡ã®åå ã¯ããéç¨ã®æµåæ§ãä½ããã¨ããä¸ç¹ã«å¸°çããã®ã§ã¯ãªãã§ãããããéç¨ã®æµåæ§ãä½ãã®ã§ãå¤æ³¨ããããå¾ã¾ãããå¤æ³¨ã®ãªã¹ã¯ãæ¸ããããã«ãããã»ã¹ãå¾¹åºçã«éè¦ããä¸ç¢ºå®æ§ãã¤ã¶ãæ¹åã«åãã¾ããç¸ãã°ç¸ãã»ã©èªç±åº¦ããªãããå¤æ³¨ã¯ã³ã¹ã競äºãæ¿ãããªãã®ã§ãåéã®ä¸ãå¹ ãå°ãªããªãã¾ããããã§ãä»äºã¯ããã®ã§ãæè¡ååä¸ã®ã¤ã³ã»ã³ãã£ãã¯ãªããªãåããªãã§ãã
ããããã£ã¨éç¨ã®æµåæ§ãé«ããå¼±èå¼·é£ã®æ¦å ´ã®ãããªæ¥çãªãã°ãæ·æ±°å§åãåãã®ã§ãããã¼ãã¹ãã«ã®äººã¯çãæ®ããªãã¯ãã§ãã
(ãããªäººã«ä»äºã¯åã£ã¦ããªããåãããã ãã)
ãã£ã¨ããç¾å®ã¯ãã£ã¨è¤éã ããã(ãã¶ããããã¾ã§æè¡ã¯é¢ä¿ãªã)ãSIerã§ããã¡ããã¨ããã¹ãã«ãæã£ã人ã¯ãã£ã±ãããã®ã§ãããã¨ãåã£ããã®ã®è¦æ¹ã§ã¯ããã¨æãã¾ãã
ã©ãããã°ããã®ã?
ã§ããç¯å²ã§ããã£ã¨ç«¶äºãä¿é²ãã¹ãã§ã¯ãªãã§ãããããæ©æ 主義ã§ã¯ãªããææãè²¢ç®åº¦ä¸»ç¾©ã«ãããä¾ãã°ãæè¿æµè¡ãã®ãã±ããé§åãªã©ãå³å¯ã«é©ç¨ããçç£æ§ãè²¢ç®åº¦ãè¦ããåãããè½åã®ã©ã³ã¯åããåéçã«ãã£ã¨ã¡ãªããªãã¤ãã etc...
ææç©ãè²¢ç®åº¦ã®ç«¶äºãæ¿ãããã°ããã¼ã«ããã¬ã¼ã ã¯ã¼ã¯ããå¹çã®è¯ãæ°ãããã®ã使ããããå¾ãªãããè¨è¨ãã¹ãåé¡ç¹ã誰ã®è²¬ä»»ãåãããããã«ãªãã°ãã¿ããªåå¼·ããããå¾ãªããªãã¯ãã§ãã
(責任ãåããªãã®ã«ãè¨è¨ãããªã¨ããæ°ããã¾ãã»ã»ã»ã)
ãã£ã¨ããç¾å®ã«ã¯é£ããã ãããããã®ã¾ã¾ã ãã ãç¶ãã®ããã»ã»ã»ã
æå¾ã«
以ä¸ãé·ã ã¨æ¸ãã¦ããã¾ããããå¨ããå¤ããããªãã¨ããããã¦ç§ä¸äººã ãã§ãã¹ãã«ã磨ãã¦ãæ¹åãã¦ãããããªãã¨æã£ã¦ã¾ããããããªãã¨ãè¨ã人ããã¾ãããæå¾ã¯ç«å ´ãçµæ´çã§ã¯ãªãããããªããä»ãã§ãããã¨ãªä½ã§ããããã¨åãããã ãã®ã¯ããªã®ã§ã»ã»ã»ã