Consistency according to refers to the agreement, harmony, or compatibility, especially correspondence or uniformity among the parts of a complex thing: consistency of colors throughout the house. article discussed the importance of consistency in design, it make things easier for the consumers to use products through previous knowledge. According to this article, consistency has four kinds and they are; aesthetic- which focuses on design, Functional-which is a transferable symbol, Internal-which gains the trust of consumers & External which focuses on elements in an environment. (Lidwell, 2003 p. 46) Consistency is a crucial part of the design. It helps gain the trust of the consumers and rely on its consistent use of elements. It focuses on making things more usable and easier for people to understand.”Consistency can be something that you can use to your advantage, rather than a straitjacket that constricts you unnecessarily. It can help minimize your development and maintenance costs, free you from having to be concerned about relatively trivial design issues, and provide an enhanced user experience for your customers.”(Gaffney, 2005) Consistency, altogether makes it easier for users to be familiar with the product or technology. If a company uses consistency in its products, it would gain trust of people. When designing, it is important to consider the user’s current knowledge. It is also advisable that we anticipate their current knowledge so we can adapt and design things accordingly. “When you think about consistency, you’re thinking about the product. When you’re thinking about current knowledge, you’re thinking about the user. They are two sides of the same coin.”(Spool, 2005) Spool argues that the importance of knowing what the consumers already know will help the design of product and consistency goes hand in hand with current knowledge. In conclusion, the use of consistency in design such be regarded as an important element. People, by nature are more comfortable using products they know and feels like they know it.

consistency. (n.d.). Collins English Dictionary – Complete & Unabridged 10th Edition. Retrieved June 03, 2012, from website:

Gaffney, G. (2005, February 25). Why consistency is critical. Retrieved from

Lidwell, W., Holden, K., & Butler, J. (2003). Aesthetic-Usability Effect. In Universal Principles of Design (pp. 46). Massachusetts: Rockport

Spool, J. (2005, September 15). Consistency in design is the wrong approach. Retrieved from