This page explain the terms of definition describe in EHORS
BDI (Break Down Item)
Short code for Break Down Item, In EHORS, each revenue items outside room sales we consider BDI, it can be a Breakfast, can be a services and even can be a virtual charges.
Package
Package in EHORS are a bundled sales combine with single or more BDI in a bundle sales. Its define by number of says and a total amount, In attraction package it can have more than 1 attractions along side with others BDI.
Example, a package can have 2 attractions, plus additional F&B welcome drink and a service boat transfer. And each attractions can have more than 1 sessions in plan board which allow guest to chose from available time prefer and availability.
Attractions
Attraction in EHORS is a BDI, thus you'll see some mentioned as BDIID and some as itemID and some as attractionID. Each attraction is a BDI sales which can be apply on different time session on different venue.
Plan Board
Plan board in EHORS are use to let customer assign attractions on particular venue with available time session, 1 attractions can be in different venue and on each venue can have different allow capacity and time session. In EHORS each session will be uniquely identify by either planBoardID or sessionID. Please take note on this.
Pax
Translate to number of people/persons/occupants, as succinctly expressed by Callithumpian's answer (apparently it was used as early as the 40s; it became a standard term in the UK Passenger Transport industry in the 70s).
Venue
A place where it hold the attraction or show or service. Depend on size, the capacity can be vary per venue and session.
Session
Session in EHORS defined by a time from and time until with format of HH:ii (Hours in 2 digits and minute in 2 digits separator with ":")
Market Segment
Sales channel in EHORS to separate or grouping in EHORS sales reports to identify particular or defined markets
Segment Source
Source or where the sales channel came from, these value are linked per market segment, each market segment can have more than 1 source.