The wrong cross is an example of aesthetic and functional consistency which is recognised across Western cultures as a symbol for wrongness. Not only is the symbol consistently used across educational practices, but it is also used in design, such as for webpages where it means to close the tab or window. The X is used as a strike-through symbol to indicate wrongness. This X is also used to check boxes on ballots, expanding its strike-through uses. This symbol has become well recognised across Western cultures where children and adults specifically know what it means. Asian cultures, however, also use this symbol to represent correctness, and so this symbol is consistent to them for different reasons.
Alarms are used in many societies and cultures to detect smoke and fires, and will alert residents of the danger with loud ringing sounds. No matter where the person is from, the purpose of the alarm is designed to shock and warn whoever hears it, and its specific sound is attached to danger. The design and purpose of these alarms are universal and have been for years, making it externally consistent and recognised by all.
A broad example of all types of consistency, being aesthetic, functional, internal and external, would be human beings. Humans are recognised since birth and beyond death, through the biological and anatomical structure that constitutes the human body. Despite diseases, disorders, abnormalities, and mutations that may occur, these are all additional to humans themselves. Despite differences in looks and the physical person, people are still familiar with the person as a human, as humans share 99% of DNA with each other. This biological consistency is how we recognise one another, because we realise we are similar in the way we live and the way we exist, and this consistency either unifies us or tears us apart.
All-free-download. (2012). Red Cross X clip art [image]. Retrieved from
The Guardian. (2011). Public crowd [image]. Retrieved from
Shockwave Electrical Perth. (2012). Smoke Alarm Detector Electrician Perth [image]. Retrieved from