Jonathan Shariat, coauthor of the book Tragic Design, discusses harmful software design. SE Radio host Jeremy Jung speaks with Shariat about how poor design can kill in the medical industry, accidentally causing harm with features meant to bring joy, what to consider during the product development cycle, industry-specific checklists and testing requirements, creating guiding principles for a team, why medical software often has poor UX, designing for crisis situations, and why employing deceptive design patterns (also known as "dark patterns") can be bad for products in the long term.