Physical design is the process of producing a detailed data model of a database and functional requirement to reach a balance. Physical interface of the product should not argue with the user while achieving test that involving any cognitive process.
A designer will be design for different culture is because the design should be respect, accept and understand to another country because culture that not all country are the same. For example The V sign is a hand gesture in which the index and middle fingers are raised and parted, while the other fingers are clenched. It has various meanings, depending on the cultural context and how it is presented. It is most commonly used to represent victory, as a symbol of peace but V sign is also an insult largely restricted to Australia, New Zealand, South Africa, Ireland, and the United Kingdom which it means Fuck off.
The picture above showing the v sign is peace.
As we can see the guy showing his angry face with the v sign which it mean fuck off.
Designer should use generic icon as a guideline because generic icon is simple, easy to recognize and to let different country user easier to understand the product with the help of icon. The languages should use international languages which is English because it is only language that goes worldwide or option that allow for text expansion when translated from English.
generic icon
international languages
A scenario is a description of a person's interaction with a system. Scenarios help focus design efforts on the user's requirements, which are distinct from technical requirements. Scenarios can be understood by people who do not have any technical background. They are therefore suitable for use during participatory design activities.
There have two types of scenarios which are plus scenarios and minus scenarios which attempt to capture the most positive and the most negative consequences of a particular proposed design solution. For example, plus scenarios are good cases that the designer understand what the user need but minus scenarios is have poor communication with user and does not satisfied the user.
According to Wikipedia, paper prototyping is a widely used method in the user-centred design process, a process that helps developers to create software that meets the user's expectations and needs especially for designing and testing user interface. It is throwaway prototyping and involves creating rough, even hand-sketched, drawings of an interface to use as prototypes, or models, of a design. Other than that, paper prototype is faster and easy to create and it is also easy to change when need any improvement.
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