【電子書籍なら、スマホ・パソコンの無料アプリで今すぐ読める！】＜p＞＜strong＞Everything we need to know about metadata, the usually invisible infrastructure for information with which we interact every day.＜/strong＞＜/p＞ ＜p＞When “metadata” became breaking news, appearing in stories about surveillance by the National Security Agency, many members of the public encountered this once-obscure term from information science for the first time. Should people be reassured that the NSA was “only” collecting metadata about phone callsーinformation about the caller, the recipient, the time, the duration, the locationーand not recordings of the conversations themselves? Or does phone call metadata reveal more than it seems? In this book, Jeffrey Pomerantz offers an accessible and concise introduction to metadata.＜/p＞ ＜p＞In the era of ubiquitous computing, metadata has become infrastructural, like the electrical grid or the highway system. We interact with it or generate it every day. It is...