Most email clients contain a "subject" that allows the user to read an email message without actually opening it.
Answer:
Explanation:
Different technologies use different user interface designs in order to make the user experience as easy and intuitive as possible. This varies drastically from one device to another because of the capabilities and size of each device. If we take a fitness/smart watch into consideration, this device does not use pop up menus or side scrolling menus but instead uses large full screen menus where each option nearly fills the entire screen. That is done because the smart watch screens are very small and making everything full screen makes reading and swiping through options that much easier for the user. If the user interface were the same as in a television or smartphone it would be impossible to navigate through the different options on such a tiny screen.
Answer:
Interference.
Explanation:
As the user is communicating with their friend through the mobile, most of their interaction is interrupted by the noise of an airplane flying at low hight. Instantly afterward, the user's mobile phone rang, disrupting the communication once more.
So, according to the following scenario both of those are examples of interference.