Kman Blog

Projek ICC… untuk difikirkan bersama siri #1

Posted on: November 19, 2009

KELEMAHAN # 1

Target setting masih gunakan pareto punca.. dan target sampai 80%. Malangnya  target setting adalah kepada punca dan bukanya pada masalah.

Justifikasi :  kerana konsep pareto 80:20

Tindakan pembetulan :

  1. Gambarajah Pareto boleh guna – tapi tidak tertumpu kepada punca-punca masalah semata-mata. Kaedah lain adalah  stratifikasikan masalah  dulu  dan kemudian baru buat  pareto

Contoh Staratifikasi :

  • masalah lewat proses x – stratifikasikan proses kerja melalui carta alir mengikut susunan masa- buat pareto proses
  • penyusunan buku yang lewat – ambik data masa penyusunan buku, buat analisa ( sampling 30% memadai dari jumlah buku disusun lewat)  dan startifikasi masa penyusunan mengikut jenis-jenis buku –  buat  pareto
  • lambat pulang jubah konvo –  ambik data bilangan kes lambat pulang, stratifikasi data ikut bidang pengajian dan buat pareto

Justifikasi kenapa cara begini diterima pakai :

  • target setting berdasarkan  masalah bukan punca
  • pengukuran data dalam pareto menggunakan unit yang sama ( masa, bilangan atau RM)
  • pengiraan target didorong oleh faktor lain spt KPI, Beachmark data, Piagam Pelanggan dan arahan pengurusan melalui minit mesyuarat dan tidak semata-mata berdasarkan  Konsep pareto 80:20.
  • V.Pareto yang memperkenalkan pareto pada tahun 1907 tidak menceritakan punca masalah sebagai x exis tetapi  x exis adalah merujuk kepada pendapatan orang manakala Y exis bilangan kes,… mengikut V.Pareto untuk menstabilkan pendapatan yang hampir sama untuk semua orang maka pengagihan pendapatan dikalangan orang kaya perlu dilakukan kepada orang miskin.
  • JM Juran menggunakan pareto untuk menunjukkan bilangan item yang rosak vs jenis item atau jenis item rosak vs kerugian bagi setiap jenis item. Juran tidak menceritakan sebab-sebab kerosakan di x exis

Kaedah  lain untuk tentukan target setting selain Gambarajah Pareto :

  1. Gunakan Bar Graph atau Graf Garis atau Histrogram untuk buat target setting.
  • Tidak semua target setting mesti turun seperti pareto. Hakikatnya ada target setting yang meningkat Cth target setting  “ meningkatkan bilangan pesakit yang boleh dimobilisasikan  dalam tempoh 48 jam dari  40% kepada 80% selepas di masukan ke Wad” …. Hanya Graf Bar yang boleh tunjukkan peningkatan ini…. Gambarajah Pareto tak  boleh mengambarkan peningkatan ini.
  • Kalau masalah proses x lambat … payah sangat nak buat stratifikasi  untuk buat Gambarajah Pareto…. Gantikan sahaja dgn graf garis…. Tak perlu  stratifikasi dan pareto.
  • Nak buat advanced sikit ..gunakan histrogram. Untuk masalah proses x lambat… ambik data proses x dalam masa bersesuaian … buat histrogram dan tunjukan mean dan median. ..bermakna mean adalah purata masa proses x….. target setting nak turunkan purata masa proses x( mean pd histrogram )
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