1. The Mac OSX graphical User interface.

The Mac OSX user interface is designed in a way that not much prior knowledge is required to use it and not much time is spent by the user to learn the system. By reducing

MacOS Screenshot
Fig 1: Screenshot of Mac OSX user interface (Gidalevitz, 2016).

the mental strain on the user , the interface design allows for a lower cognitive load (Lidwell, Holden, & Butler, 2010) as opposed to other operating systems. Also, the inclusion of a search box at the top makes it easier for a user to find an item without too much physical effort and with no compulsion to remember a set of buttons to click, thus reducing kinematic load.


2.  Key FOB

The key Fob is an invention specifically designed to reduce the kinematic loa

key fob
Fig 2: Key Fob (Spring, 2016)

d  (Lidwell, Holden, & Butler, 2010) of users wishing to unlock a car. The task of unlocking a car or opening a car boot is not as physically intricate as using a key is. Finding a key in a bunch, inserting it in a door lock and turning it the proper way all involve more kinematic and cognitive loads.


3.The barcode

The invention of the barcode allows for automatic stock control, when a product is purchased. Also the price is not physically required as a label but is rather retri

Fig 3 : Barcode (“GS1-128 barcodes,” 2016).

eved from a database when a code is scanned. This makes the use of a barcode involve less performance load (Lidwell, Holden, & Butler, 2010) than that of a physically updated inventory.


Gidalevitz, Y. (2016). Windows 10 vs macOS Sierra: Part 1 – User Interface & Artificial Intelligence.   Retrieved from http://usabilitygeek.com/windows-10-vs-mac-os-sierra-user-interface-artificial-intelligence/

GS1-128 barcodes. (2016).   Retrieved from https://www.gs1au.org/resources/standards-and-guidelines/gs1-128-barcodes/

Lidwell, W., Holden, K., & Butler, J. (2010). Universal principles of design  Retrieved from Ebook Library http://public.eblib.com/choice/publicfullrecord.aspx?p=3399678

Spring, T. (2016). Key Fob Hack Allows Attackers To Unlock Millions Of Cars.   Retrieved from https://threatpost.com/key-fob-hack-allows-attackers-to-unlock-millions-of-cars/119846/




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