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

Glossary
NonStop TS/MP Pathsend and Server Programming Manual–132500
Glossary-22
SCREEN COBOL Utility Program (SCUP)
processes that manage application databases. SCREEN COBOL programs are compiled
into pseudocode form by the SCREEN COBOL compiler and then interpreted by the
TCP. See also terminal control process (TCP).
SCREEN COBOL Utility Program (SCUP). A utility that provides control and
manipulation of SCREEN COBOL object files.
screen description entry. A declaration of a base screen, and, optionally, an overlay screen,
in the Screen Section of a SCREEN COBOL program. See also screen, base screen, and
overlay screen.
screen-oriented requester. A SCREEN COBOL requester that sends data from working
storage to the display screen of a terminal by way of screen templates defined in the
Screen Section of the Data Division. Similarly, such a requester receives data from the
terminal into working storage by way of Screen Section templates. It uses ACCEPT and
DISPLAY statements in the Procedure Division to interact with the display terminals.
Standard SCREEN COBOL requesters are screen-oriented. See also message-oriented
requester.
screen overlay area. See overlay area.
screen program. A SCREEN COBOL requester program. See also SCREEN COBOL.
Screen Section. A section in the Data Division of a SCREEN COBOL source program that
describes the types and locations of fields in screens that can be displayed on a terminal.
SCUP. See SCREEN COBOL Utility Program (SCUP).
SEND operation. In SCREEN COBOL, an operation in which a transaction request message
is sent to a server process and a reply is received back from the server process. See also
server-class send operation.
server. (1) A process or program that provides services to a client or a requester. Servers are
designed to receive request messages from clients or requesters; perform the desired
operations, such as database inquiries or updates, security verifications, numerical
calculations, or data routing to other computer systems; and return reply messages to the
clients or requesters. A server process is a running instance of a server program. (2) A
combination of hardware and software designed to provide services in response to
requests received from clients across a network. For example, Tandem’s Himalaya
servers provide transaction processing, database access, and other services. (In the
NonStop TS/MP and Pathway/TS manual set, the word “server” is generally used only
when definition 1 is meant; for definition 2, “system” is usually used instead of
“server.”) See also client, requester, client/server model, and requester/server model.
server class. A group of duplicate copies of a single server process, all of which execute the
same object program. Server classes are configured through the PATHMON process.
server-class send operation. The sending of a message to a Pathway server class by making
a call to a Pathsend procedure. The SERVERCLASS_SEND_,