Impression Metrics
PAGE IMPRESSION (which is the minimum currency) - A file, or a combination of files, sent to a BROWSER as a result of that BROWSER's request being received by the server.
AUTOMATED PAGE IMPRESSION - A PAGE IMPRESSION sent to a valid BROWSER resulting from an automatic process.
CHAT IMPRESSION - A file, or combination of files, sent to a valid BROWSER while the BROWSER is involved in an interactive Chat session, i.e., a PAGE IMPRESSION generated by a Chat URL. Chat URLs show the input of one or more concurrent BROWSERs, visible to each other, updated frequently, so as to enable a text based conversation.
STREAM IMPRESSION - The start of a media file stream sent to a valid BROWSER as a result of that BROWSER'S request being received by the server.
INTERACTIVE IMPRESSION - An interactive media file, or a combination of files, sent to a valid BROWSER as a result of the BROWSER'S request being received by the server.
WAP IMPRESSION - A WML file, or a combination of WML files, sent to a valid BROWSER as a result of that BROWSER'S request being received by the server.
INTERACTIVE TV IMPRESSION - A file, or a combination of files, sent to a valid BROWSER as a result of that BROWSER's request being received by the server.
Web standards
IFABC web standards define the key metrics relevant in buying and selling digital media.
They cover everything from page impressions to email delivery and are truly global in their application.