metadata

中文： 元数据

1. Data that describes other data, serving as an informative label. (uncountable) · Most websites contain metadata to tell the computer how to lay out the content on the screen.
2. Structured information about a file (date created, creator, software used to create, last modified, file format, file fingerprint, etc). (uncountable) · That photo's metadata suggests it was edited using Photoshop.