TS/MP Pathsend and Server Programming Manual (G06.24+, H06.03+)

Glossary
NonStop TS/MP Pathsend and Server Programming Manual–132500
Glossary-21
request translation header
executed until completion, it does not have any dialog with the requester, and it sends
back a return value to the requester. A request/response server is analogous to a context-
free Pathway server.
request translation header. A group of header fields that must be included at the beginning
of each request message a SCREEN COBOL or Pathsend requester sends to the
Pathway translation server for the NonStop TUXEDO system. This header specifies the
NonStop TUXEDO application service for which the message is destined, the NonStop
TUXEDO buffer types of the request and reply messages as seen by the service, and
options that modify the invocation of the service. The translation server removes this
header from the request message before sending it to the application service. See also
reply translation header.
reserved word. A word that can be used only as a keyword.
resources. The components of a computer system that work together to process transactions.
Terminals, workstations, CPUs, memory, I/O controllers, disk drives, processes, files,
and applications are examples of resources.
response time. The amount of time it takes to receive a response from the system after
initiating a request message (for example, by pressing a function key).
retryable operation. An operation that can be interrupted and repeated an indefinite number
of times without affecting the consistency of the database; for example, all read
operations are retryable.
RISC. See reduced instruction-set computing (RISC).
root directory. An OSS directory associated with a process that the system uses for pathname
resolution when a pathname begins with a slash (/) character. See also OSS pathname.
RSC. See Remote Server Call (RSC).
scalability. The ability to increase the size and processing power of an online transaction
processing system by adding processors and devices to a system, systems to a network,
and so on, and to do so easily and transparently without bringing systems down.
Scalability is also sometimes called expandability.
SCOBOLX. The object file for the SCREEN COBOL compiler program. This name is given
in a TACL command to invoke the compiler. See also SCREEN COBOL.
screen. A group of data fields that represent formatted data to be displayed on a terminal.
A screen is defined by a screen description entry in the Screen Section of a SCREEN
COBOL program. There are two types of screen: base screens and overlay screens. See
also base screen, overlay screen, and screen description entry.
SCREEN COBOL. A procedural language developed by Tandem and based on COBOL that
is used to define and control screen displays on terminals and other input/output devices.
SCREEN COBOL allows programmers to write requester programs that communicate
with operator terminals and intelligent input/output devices, and that send data to server