6 hours ago
- The elevator button problem highlights hidden depths in user interface design, where pressing 'up' to go up is learned folk wisdom, not universal knowledge.
- Extra information, like the elevator's current floor, can confuse users into thinking it's needed to decide, when only confirmation of the request is required.
- Directional buttons (up/down) help optimize elevator routes by allowing the system to know passenger direction, reducing wasteful stops.
- A single call button simplifies the interface but can make the system less efficient by forcing unnecessary stops for opposite-direction travelers.
- Alternative designs, such as entering destination floor via keypad or touchscreen, eliminate ambiguity but may introduce confusion due to behavior bias.
- Usability trade-offs exist: simple interfaces may hamper efficiency, while advanced systems can overcomplicate for novices.