Stumped by industry jargon? Here are the definitions and
explanations to make it all clear.


Resource Access Control Facility. RACF is the IBM security tool used to protect all mainframe resources from unauthorized use.


Revenue per average seat kilometer. A measure of financial performance for an airline, calculated by dividing total revenue per flight by the ASKs of the flight. In the United States, RASM (revenue per average seat mile) is used.


Revenue Accounting Tax Database. A comprehensive and automated monthly snapshot of all interlineable taxes that provides the carrier with access to the taxes to be used for monthly settlement.


Reservation booking designator. Also called prime booking code or booking code.


The process of analyzing rules and conditions for a new ticket to replace an unused or partially flown ticket.


1. The computerized key information, including rate and fare information used by CRSs during autopricing to validate coded fare information. 2. Structure of the FareManager Rules system that comprises eight different record types. These records serve different functions in the processing of a fare and are accessed singly to be worked on or viewed in the FareManager Rules system.

Record 0 (General Rules)

1. (Convention 2) Identifies the source tariff and general rule to be applied for each category 2. (Convention 3) The valid rule numbers sent out via ATPCO's system.

Record 1

Fare Class Application record. The Record 1 contains all the fare class codes that are coded in a specific tariff, carrier, and rule combination.

Record 2

Category Control record. The Record 2 contains identification fields that match to the fare, Record 1, or Record 8.

Record 3

A data table used to house rule provisions. This record contains the actual coded data that provides the detailed provisions to apply to a fare from a rule or footnote.

Record 4

Renumber Category Control record. This record is used to maintain the current data in Record 2 while it is in the process of being renumbered.

Record 5

Renumber Fare Class Application record. This record is used to maintain the current data in Record 1 while it is in the process of being renumbered.

Record 6

Reservation Booking Designators (RBD) record. This record states any booking code exceptions to the prime booking code using Chart 1 and Chart 2. The Record 6 contains the identification criteria that must be matched to determine the proper booking code exceptions for that fare.

Record 8

Fare By Rule Index record. This record is used to identify the fares that may be used in the fare retrieval process for the Fare By Rule category.

Record layout

An illustration of the data fields and their positions for a particular product.

Recurring segment

A portion of a record that may be repeated. The recurring segment is preceded by a counter indicating how many times the recurring portion occurs. The use of recurring segments results in a variable length depending on the number of the recurring segments that are included in the record.

Relational indicator

The first field to be completed in any category, it indicates the relationship between data tables. The relational indicator for the initial table in any category is THEN. Other relational indicators are AND, OR, IF, ELSE.


A batch action type that creates a batch, sends the results through the validation process, applies the transactions to the database, and makes the batch available for filing (International) or distribution (US/CA).

Remittance amount

The amount received by the airline for the ticket through ARC/BSP.

Reservation booking designator

The prime one- or two-letter code that is used in a CRS/GDS to identify the class of service in which to book a passenger or the fare in an availability display. Also called booking code.


An airline IT system that processes the itinerary information, adds passenger and payment information, and issues the ticket. This system also stores the itinerary, processes any changes/refunds, and sends the information to the carrier's Departure Control System before the passenger flies.

Resulting fare

The final fare amount and supporting fare class information produced from all steps in the Category 25 or in Categories 19-22.

Revenue accounting

1. The quadrant of the life cycle of the fare where airlines process, audit, and collect sales from thousands of tickets. 2. (industry term) An airline IT application that examines past ticket sales in order to allocate revenue to appropriate carriers. Sales data is supplied to airlines by the GDSs and other sources via ATPCO's Sales Data Exchange, as well as internal airline systems. The tickets are then prorated based on existing agreements, and the results are sent to the ACH or IATA for settlement.

Revenue management

The practice of matching a passenger's specific demand for a product with an equivalent price. Developed by the airline industry in the 1970s, this practice demands highly complex and comprehensive data systems that allow businesses to vary price and availability to different market segments, and adjust these as necessary to capture or increase market share and revenue. In the airline industry, these actions are carried out by yield management in the case of inventory changes, and fare management in the case of pricing changes.


Reason for Issuance Codes. They are included on the EMD document and determine the generic reason for issuance of the document, as defined in IATA JPSC Resolution 722f Attachment A.


Relational indicator.


Rate of Exchange.

Round-the-world fares

(Subcategory 103, International fares) Travel from the point of origin and return thereto which involves only one crossing of the Atlantic Ocean and only one crossing of the Pacific Ocean. Note that a single round-the-world fare component does not validate against Subcategories 102 or 103 (validation is only against Subcategory 104 to determine if End-on-End is required). See also combinations.


1. (Subcategory 102, US/CA fares) (data application) From point A to point B and return to point A on the same tariff, same carrier, same rule, and same round-trip fare class code. Note that if carriers wish to restrict the route of travel on the fares, then this can be done via the Routing Map and/or Category 4. See also combinations. 2. (Subcategory 102, International fares, excluding round-the-world fares) (data application) From point A to point B and return to point A using two fare components only, for which the applicable half-round-trip fare for each component, measured from point A, is the same for the routing traveled. Exception: If fares differ through class/season/day of week or carrier variation, it is still a round-trip. Note that after processing, if the results show a different HIP(Higher Intermediate Point) and/or a different mileage surcharge has been applied on fare component(s) in the pricing unit, then the above pricing solution would be considered a Circle Trip. See also combinations.

Round-trip fare

1. (International) A fare identified as Tag 2 on the Fare Record or Category 25 Resulting Fare data. 2. (US/CA) A fare identified as Tag 2 on the Fare Record or Category 25 Resulting Fare data.

Round-trip journey

1. When the journey is wholly domestic (all ticketed points on the journey are in the same country), a journey where the destination point of the journey is the same point as the origin point of the journey. 2. When the journey is international (at least two ticketed points are in different countries), a journey where the destination point of the journey is in the same country as the origin point of the journey.


Restrictions on a fare based on travel routes and defined by routing maps.

Routing-based fare

A fare that is governed by a designated routing map or routing restriction (other than MPM).


A system containing both routing map and restriction data that supports the fares database.


Revenue passenger kilometers. An industry measure of traffic, calculated by multiplying the total number of revenue passengers by the distance of the flight.


Remote Rules Text Inquiry. RTEXT is a screen mirror image of loose-leaf text pages (rules only). This inquiry system provides the online ability to monitor the changes to rules text within the industry. Domestic and international tariff rules are displayed in tariff page format containing all filed/non-filed rules governing passenger air transportation and international cargo products. Multiple date versions are available in ATPCO's data products.


Round-the-world fares.


The necessary provisions and conditions under which traveling may occur that meet the special requirements set by a carrier or government regulatory agency. It is linked by fare class to fare record and includes the booking code and categories for a given fare. Carriers choose rule numbers according to their regulations. Rule numbers are an aid in autopricing. See also fare rule.


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