Special keys on the keyboard are given in angle brackets:
<Ctrl> means Ctrl key
<Alt> means Alt key
<Ctrl>+key means hold down the Ctrl key, then press 'key'
<Ctrl><Alt>+key means hold down both the Ctrl key and the Alt key, then press 'key'
The pipe character '|' is used when describing menu options.
For example, 'File|Open a Record' means to open the 'File' menu and select the 'Open a Record' item.
“Element” generally refers to an RDA Element. “Element set” describes all of the elements for a FRBR Entity (in our implementation).