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หลักการที่ 2: ใช้งานได้ องค์ประกอบของส่วนต่อประสานกับผู้ใช้ และระบบการท่องเว็บต้องสามารถใช้งานได้ ผู้ใช้สามารถรับรู้ได้


?????? 2.2 ??????????????

????????????????????????????????????????????????????????????????

2.2.1 ????????????????????

???????????????????????????????????? ??????????????????????????????????? (????? A)

  • ?????? – ?????????????????????????????????????????????????? ????
  • ??????????? – ???????????????????????????????????????????????????????????? 10 ???????????????????????????????? ????
  • ???? – ???????????????????????????????????????????????????????????????????? 20 ?????????????????? ? (???? ????????? Space) ???????????????????????????????????????? 10 ?????????????????????? ????
  • ?????????????????????????? – ?????????????????????????????????????????????????? (Real-time event) ???? ?? ??????????????? ?????????????????????????????????????????????? ????
  • ?????????????????????????? – ?????????????????????????????????? ???????????????????????????????????????????????????????
  • ????????? 20 ??????? – ??????????????????????? 20 ???????

2.2.2 ?????? ????????????

???????????????????????????????? ?????? ???????????? ??????????????????????? (Auto-update) ?????????????????????????? (????? A)

  • ????????????? ?????? ???????????? – ?????????????????????????????????? ?????????????????????????? 1) ???????????????????? 2) ??????????????? 5 ?????? ??? 3) ????????????????????????????????????????????????? ??????????????????????? ??????????????????????? ????????????????????????????????????????????????????????????
  • ?????????????????????? – ????????????????????????????????????????????? 1) ???????????????????? ??? 2) ??????????????????????????? ???????????????????????????? ??????????????????????? ???????????????????????????????????? ????????????????????????????????????????????????????????????????????

2.2.3 ?????????????????

????????????????????????????????????????????????????????????????????? ???????????????????????????????????????????????????? (Non-interactive synchronized media) ?????????????? (????? AAA)

2.2.4 ????????????

?????????????????????????????????????? ??????????????????? ??????????????????????????????????? (????? AAA)

2.2.5 ????????????????????????????? (Re-authentication)

???????????????????????????????????????????????????? ???????????????????????????????????????????????????????????????????????????????????????? (????? AAA)