Abstract: A wireless tag includes: an antenna; an integrated circuit configured to be electrically connected to the antenna; a package configured to integrally subject the antenna and the integrated circuit to packaging; and a boundary portion configured to be located between a first portion including the integrated circuit in the package and a second portion not including the integrated circuit, wherein the boundary portion is configured so as to be more easily torn apart than a portion other than the boundary portion in the package.

Abstract: A management device includes: a memory configured to store a program including a procedure; and a processor configure to execute the program, the procedure including: acquiring a result obtained by communicating with a first wireless tag attached to each openable storage container in which location information is defined, a communicable range of the first wireless tag changing between a state where the storage container is unopened and a state where the storage container is opened, and managing information indicating an opened state of the storage container and the location information with associating the opened state of the storage container and the location information with each other, on the basis of the result of the communication with the first wireless tag.

Abstract: A wireless tag includes: an antenna; an integrated circuit configured to be electrically connected to the antenna; a package configured to integrally subject the antenna and the integrated circuit to packaging; and a boundary portion configured to be located between a first portion including the integrated circuit in the package and a second portion not including the integrated circuit, wherein the boundary portion is configured so as to be more easily torn apart than a portion other than the boundary portion in the package.