IBM 5280 Distributed Data System - Index of

program listing: A computer printout that gives informationabout the source program, such as source statements,diagnostic messages. indicators used. storage addresses offields and constants used.program product: An I BM-written, licensed program forwhich a monthly charge is made. A program productperforms functions related to processing user data.prompt: A message issued by a program that requestseither information or an operator action to continueprocessing.reformatting: The rearrangement of an addition or eliminationof fields in a record.refresh: The continuous redisplaying of data on the displayscreen to prevent the data from fading out.refresh buffers: Areas in keyboard/display storage that areused to refresh each row of display characters on the screen.The refresh area for the status line is in an area separatefrom the refresh area for the other rows on the screen.relative addressing: A means of addressing instructionsand data areas by designating their location in relation tothe location counter or to some symbolic symbol. Relativeaddresses of areas within a partition are relative to thebeginning of the partition.relative record number: A number that specifies the locationof a record in relation to the beginning of the data set.rerun mode: An operational mode that allows the applicationprogram to perform the return-to-program (RG) exitswithin a screen format control string in a rapid fashionwithout operator intervention. No status line information,prompts, data, or display attributes appear on the displayscreen.rerun/display mode: An operational mode that is thesame as rerun mode except that the status line information,prompts, data, and display attributes appear on the screenso the operator can inspect the rerun data.resource allocation table: A table in storage that is used toassign a logical device ID (a name) to a physical device.return-to-program exit: See RG exit.reverse image: The display attribute that causes charactersto be displayed as dark characters on a light background.RG exit: A user exit that interrupts the processing of ascreen format to give control to a user"s routine.right adjust: The placement of data in a register or field,or the shifting of the contents of a register or field, so thatthe least significant byte at the right end of the data isplaced into the rightmost position of the register or field.right justify: The adjustment of positions of characters sothat the rightmost character entered is at the extreme rightof a field.SCP: See system control programs.screen format: f!\ description of a record that is entered viathe keyboard/display. A screen format is set up by aSFMT series of control statements, and defines the fields,prompts, control specifications, and display attributes ofthe record.screen format control string: The object code that is generatedby a series of SFMT control statements.SCS: SNA standard character string.SCS conversion data set: A data set that has SCS conversionspecified in the .DATASET control statement thatdefined the data set. The system automatically insertsSCS control characters into an SCS conversion data set.SCS data set: A data set that contains SCS controlcharacters. Contrast with SCS conversion data set.SOLC: Synchronous data link control.search argument: The data to be compared to specificparts of a record for a data set search operation, or totable entries for a table search operation.sector: An area on a diskette track reserved to record aunit of data.security: Prevention of access to or use of all or part ofdata or programs without authorization.self-check field: A field, such as an account number, consistingof a base number and a self-check digit or digits. Fordata entry applications, the self-check digit or digitsentered by the operator is compared to the self-check digitor digits computed by the system. If the operator makesa mistake when entering (keying) a self-check field, an errormessage is displayed.368