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tcACCESS Architecture and Case Studies
tcACCESS is a modular software solution. It consists of a base system that can either be implemented as a CICS transaction or as a VTAM application. The base system provides its own communication modules. The heart of the system is the tcACCESS SQL Engine which allows access to mainframe data sources using SQL statements. tcACCESS offers Listener components on the mainframe and on the client, as well as scheduling and security functions. Batch processors automate the information exchange processes between distributed applications.
The tcACCESS client components contain their own communication modules. Therefore, no additional middleware is necessary for the exchange of information between mainframe and client (server or workstation). The client components are available as MS-Windows ODBC driver/server and as JDBC server/driver for Unix, Linux and all platforms that support Java.
The tcACCESS import processors allow the automatic mapping of mainframe data. The mainframe data structure information (numeric, alphanumeric, packed, zoned, etc.) is determined based on copybooks, database data dictionaries, and DBD/ PSB modules for IMS/DB and DL/1. The tcACCESS MS-Windows based administrator application provides mainframe data transparency even for users without mainframe knowledge.
SQL queries to access mainframe data can easily be created using drag and drop techniques -- no programming is required. The result of the query can be immediately presented and viewed (i.e., Excel, MS-Access, etc.). Direct ODBC or JDBC access to mainframe data from any client/server or Web application can be easily implemented. It is only necessary to assign the tcACCESS driver to the application.
Extensive monitoring functions are provided to create audit trails. Load balancing functions guarantee the most efficient use of mainframe resources. The tcACCESS provided security or security system already in use (via our SAF-interface) assures that only authorized users can view and process the data.
tcACCESS and tcVISION Customer Case Studies
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