Critical Reading and Writing Q1

October 30, 2010 at 5:10 am (Learning Portfolio 2) (, , , , , )

Consistency is another design principle by which “similar items are expressed in similar, repetitive ways” (DiMarco, J. 2010) and when similar items are expressed in the same way systems can often become more usable and learnable (Lidwell, W., Holden, K., & Butler, J. 2003). There are four main types of consistency in design they are Aesthetic consistency, Functional consistency, Internal consistency and External consistency. Aesthetic consistency refers to the consistency within the style and appearance of something (Lidwell, W., Holden, K., & Butler, J. 2003) an example of aesthetic consistency is company logos like the golden arches from McDonalds. Functional consistency is the consistency between meaning and action for example traffic lights all red traffic lights mean stop (Lidwell, W., Holden, K., & Butler, J. 2003). Internal consistency develops trust within a community or society it includes things like street signs proving to the community that the system has be designed with thought and consistency (Lidwell, W., Holden, K., & Butler, J. 2003). The final part of consistency is external consistency, which sometimes can be grouped together with internal. It Extends Internal consistency across different systems it includes a broader range of things in the environment  (Lidwell, W., Holden, K., & Butler, J. 2003). “Consistency in the means of display allows viewers to use the same conceptual strategy for interpreting the data, which saves time and energy” (Stephan, F. 2006). We save energy because it creates a simple and unobtrusive encounter for whom ever might be using it (Colville_Hyde, B 2009).



Stephan, F.  (2006). Information dashboard design: the effective visual communication from data. O’Riley Media, Inc.

DiMarco , J. (2010). Digital Design for Print and Web: An Introduction to Theory, Principles, and Techniques

Colville-Hyde, B. (2009). Consistency and design. Retrieved from

Lidwell, W., Holden, K., & Butler , J. (2003). Aesthetic-usability Effect. In Universal Principles of Design (pp. 18-19). Massachusetts: Rockport.



Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

%d bloggers like this: