The Magical Number Seven, Plus or Minus Two

akhirnya aku jumpa jugak reference pasal no 7 yg aku selalu criter kat member aku, dulu masa kat U, aku ader belajar teori ni dlm subject HCI (human computer interaction), cth: jgn buat tab/wizard lebih dari 7, jgn buat link hierarki lebih dari 7 step sebab jadi complex sebab ikut kajian Miller, manusia bleh senang ingat sampai tujuh item ajer... tapi sekarang dah ader teori baru iaitu "magical number of four", cth: no telefon walaupun panjang, selalu kita group dalm 3/4 digit utk senang ingat 08 8888 8888... cth lain adalah no kad kredit pun kita group dlm 4 digit... 8888 8888 8888 8888 (nilak tambahan member aku kata -> dlm islam pun bleh kahwin empat... haha)

" The Magical Number Seven, Plus or Minus Two: Some Limits on Our Capacity for Processing Information " (Miller 1956) is one of the most highly cited papers in psychology.Miller observed that memory span of young adults is approximately 7 items:

"magical number four" - Cowan [9] also noted a number of other limits of cognition that point to a "magical number four", and different from Miller, he argued that this correspondence is no coincidence.

http://en.wikipedia.org/wiki/7_%28number%29
for info no 7 dlm islam:

• The number of ayat in surat al-Fatiha.
• The number of heavens in Islamic tradition.
• The number of levels of Earth in Islamic tradition.
• The number of circumambulations (Tawaf) that are made around the Kaaba
• The number of walks between Al-Safa and Al-Marwah mountains -that is travelling back and forth- seven times during the ritual pilgrimages of Hajj and Umrah.
• The number of fires in hell. i.e the 7 fires of hell.
• The number of doors to hell is also seven.

beberapa pandangan lain utk rujukan:

http://en.wikipedia.org/wiki/Subitizing

Subitizing, coined in 1949 by E.L. Kaufman et al.[1] refers to the rapid, accurate, and confident judgments of number performed for small numbers of items.

http://www.whatmakesthemclick.net/2009/10/28/100-things-you-should-know-about-people-3-the-magic-number-3-or-3-to-4/

http://www.dailygalaxy.com/my_weblog/2008/04/the-limits-of-m.html

p/s: mungkin ader kajian di atas masih tidak tepat.. tetapi apa yg lebih penting kajian2 yg dibuat telah mendorong kajian lain yg lebih berguna.. macam yg aku kata no nisbah 7 tu banyak digunakan dlm kajian HCI bagi membuat interface yg tidak complex...