This thesis is about the process of creating a design proposal of a letterbox for mounting on security doors. The project was developed in cooperation with a manufacturer of security doors made of steel. The purpose of this work has been to develop a concept for a mailbox with several new functions and an innovative aesthetic design, at the request of the company. This new design has to be in line with existing security demands and should also include a wide group of users.
According to French’s model, a method has been used where user studies, tests and focus groups provides essential information. The three design principles inclusive design, pleasure design and gamification has been the guiding star throughout the process.
A function diagram was used on a regular letterbox to find functions with potential for improvements. The focus of the concept development was based on the findings from this diagram.
The concept generation resulted in the letter box Droppen, containing innovative functions that have been developed from the existing ones. This letterbox is challenging by expanding old functionalities such as LED lamps as a mean of communication or using the magazine holder as a form of unloading zone. The distinguished and soft form of a drop is a design that appeals to many people and at the same time makes it easy to pick up the mail. The box is made from zinc alloyed steel, which makes it heavy but durable. The many options for individual design not only increase the customer value but also indirectly reduce the impact on the environment.