Paper prototyping

In human–computer interaction, paper prototyping is a widely used method in the user-centered design process, a process that helps developers to create software that meets the user's expectations and needs – in this case, especially for designing and testing user interfaces. It is throwaway prototyping and involves creating rough, even hand-sketched, drawings of an interface to use as prototypes, or models, of a design. While paper prototyping seems simple, this method of usability testing can provide useful feedback to aid the design of easier-to-use products. This is supported by many usability professionals. Paper prototyping started in the mid-1980s and then became popular in the mid-1990s, when companies such as IBM, Honeywell, Microsoft, and others, started using the technique in developing their products. Today, paper prototyping is used widely in user-centered design by usability professionals. More recently, digital paper prototyping has been advocated by companies like Pidoco due to advantages in terms of collaboration, flexibility, and cost. Paper prototyping saves time and money, since it enables developers to test product interfaces (from software and websites to cell phones and microwave ovens) before they write code or begin development. This also allows for easy and inexpensive modification to existing designs, which makes this method useful in the early phases of design. Using paper prototyping allows the entire creative team to be involved in the process, which eliminates the chance of someone with key information not being involved in the design process. Another benefit of paper prototyping is that users feel more comfortable being critical of the mock-up because it doesn't have a polished look. There are different methods of paper prototyping, each of them showing several benefits regarding the communication within the development team, as well as the quality of the product being developed. In the development team, paper prototypes can serve as a visual specification of the graphical user interface – and by this means, assure the quality of the software.