Why HFE is Really Necessary

The needs and abilities of people can sometimes be overlooked in the design process because the focus is often primarily on the technical aspects of a system or product, rather than on the people who will be using it.

An example of this could be the development of a new medical device for a hospital. The device is intended to assist in surgeries by providing real-time imaging and data analysis. The engineers are focused on creating a device that can handle the large amounts of data and can process it quickly and accurately. However, in the process of achieving this, they may not have considered the needs and abilities of the surgeons who will be using the device.

In addition, engineers and designers may not have the necessary training or experience in HFE to fully understand how their designs will affect the users. For example, it is possible that without proper training and guidance, engineers may tend to think that users are similar to them, while in reality they may differ in important aspects. This is known as the “false consensus effect” or “similarity bias”. Engineers may assume that the users of a system or product will have similar abilities, needs, and preferences as themselves, and may not consider the diversity of users that the product may be intended for.

Further, during the design process, there may be pressure to meet certain technical requirements or deadlines, which can lead to a lack of consideration for the human aspect of the design.

Another reason why the needs and abilities of people can be overlooked in the design process is because people’s abilities and needs change over time, so it is important to regularly evaluate and update designs to ensure they continue to meet the needs of users.

While other engineering disciplines also have the goal of designing safe, efficient, and user-friendly systems and products, HFE is unique in its focus on the human user as the central element in the design process. Other engineering disciplines, such as mechanical, electrical, and software engineering, focus on the technical aspects of design and may not always consider the needs and capabilities of the human user.