Learn in the textbookSNS and the Data-Utilization Society
DefinitionA lifelog (ライフログ) means recording and storing a person's daily activities as digital data, and also the records produced this way.
ExplanationData such as steps, sleep and location logged by devices and services, as well as diaries and posts a person writes, all count as a lifelog if they record that person's activities. The collected data can be used for health management or for recommending products that match a person's tastes.
AnalogyLike a ship's logbook, it lets you trace afterward when and where a person did what.
Memory hookRemember it by how the word is built: a log whose subject is a person's life.