SNAX/HLS Configuration and Control Manual

1 Product Overview
104705 Tandem Computers Incorporated 1–1
Introduction
SNAX/High-Level Support (SNAX/HLS) consists of several programs and support
files that jointly form a subsystem whose purpose is to allow easy communication
between Tandem application programs and a wide range of SNA devices and software
products (including software running in IBM hosts in different domains).
Using SNAX/HLS, application development time is saved because:
The application interface to SNAX/HLS requires you to know little detailed
knowledge of either Tandem SNA access methods (SNAX/XF or SNAX/CDF), or
of SNA, thus leaving you free to concentrate on the application.
SNAX/HLS supports both Pathway and non-Pathway environments.
Application programs can be written in the following Tandem supported
languages: BASIC, COBOL, FORTRAN, MUMPS, SCOBOLX, C, PASCAL, or
TAL.
SNAX/HLS includes support tools for fast prototyping, problem determination,
and environment management.
Copybooks for COBOL, Screen COBOL, or TAL help you keep track of
programming standards. (Copybooks are not available for C or Pascal.)
Figure 1-1 shows SNAX/HLS in a sample Tandem Expand network of two systems
(\SYS1 and \SYS2). As shown in the figure:
SNAX/HLS allows Tandem applications to access IBM host software products
(such as CICS and IMS) for distributed transaction processing.
Tandem applications can communicate with intelligent SNA controllers such as
the IBM 3600 or 4700 Financial Subsystems and the IBM 3650 Retail Subsystem.
Tandem applications can communicate with IBM hosts and devices in other
domains of the SNA network (if SNAX/HLS is using SNAX/CDF as the Tandem
SNA access method).