Requirements

Before the ideation process starts, a list of requirements has been drawn up. These requirements are based on the first meeting with our Co-designer and from the various research that has been done. Ultimately, the requirements are divided into the following subgroups: Technical Requirements, Usability Requirements, Aesthetic Requirements and Co-designer Requirements.

Design challenge

The design challenge will focus on designing a more universal product, specifically, one pair of glasses that can be customized, so it can be adjusted to help with different symptoms and be suitable for different circumstances.

technical requirements

Glass frame

The glass frame has to be compliant with the EU standards for Spectacle frames, in particular:

  • The glass frame has to minimize the risk to the wearer
  • The glass frame has to use non-toxic materials
  • The glass frame has to be robust (is measured by the impact of a 22mm diameter steel ball at 100 Newtons)
Extra lens 
  • The product must contain a mechanism that ensures that two different types of lenses can be worn at the same time in just one pair of glasses (customizable).
  • The lenses have to be close to each other (maximum 3mm from each other) to minimize the distortion of the picture.
  • The lens has to be attached and detached without extra tools. 
  • The frame has to ensure that both the main lenses and extra lenses can be replaced at a general optician. 
  • The glasses must be provided with anti fog properties. 
Eyecap
  • The product must have the ability to completely shield the eyes so that the eyes are protected from the wind or other weather conditions outdoors. 
  • The product must contain a mechanism that ensures that the eyecap can be put on and taken off the glasses.
  • The eyecap has to have no gaps between the face and the eyeshield and the glass frame.
  • The material used for the eyecap must be flexible/soft and should fit continuous changes of the eye.
Headband
  • The product must sit tightly on the face so it stays intact during the active movements of the user. 
  • The headband must be adjustable to fit different shapes of the head. 
  • The headband should be easily detachable and attachable to the glass frame. 

Usability requirements

  • The mechanism located on the glass frame should clearly communicate its functionality to the user by having a visible signifier for the affordance.
  • The slits on the eyecap should be clearly visible to the user and have a signifier for the affordance.
  • The product should have a case which can effectively and safely store all the components in one place.
  • All the components should be fully detachable to maximize the ease for their cleaning.

aesthetic requirements

  • The product should avoid social alienation by looking casual and not too prominent.
  • The frame of the glasses and shape of the lenses must ensure that the glasses can also be used for other purposes instead of people suffering from Graves’ eye disease (broader target group).

Co-designer requirements

  • The aesthetic of the glasses should fit the preferences of the co-designer, so that she feels comfortable interacting with the outside world.
  • The product must be able to last for a long time and must be able to cope with the changing circumstances around the eyes.
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