Volume X Number 2 Page 3
2000

INDEX

[HOME]


Equipment specification data in the General Parameters Editor

Training Solutions by Raytheon

"T raining is what turns an ordinary man into a soldier," according to the United States Army. To produce the highest caliber of effective and confident professionals they must receive the best quality training available. For military and community organizations in today's world, this also means integrating sophisticated technology into a rigorous training curriculum.

    ABACUS, the Advanced Battlefield Computer System, is a war game simulation developed by Raytheon Company for command and staff training. ABACUS simulates a complex, realistic battlefield environment designed to put a team's critical decision making skills to the test. The stressful simulation exercises are particularly useful to military and community organizations for practice working together in times of civil challenges.

    A team of less than 6 military officers and maintenance engineers form the central command post, creating scenarios and running exercises for up to 170 stations and 2000 people. These exercises can run 24 x 7 for up to two weeks fueled by up to the minute, real time data.

    ABACUS uses the EMPRESS RDBMS to store the thousands of pieces of information it uses for training exercises. From weapon system ranges, to weather conditions, to vehicle loading time, information is easily entered and manipulated via a data editor. An EMPRESS API makes runtime checks on data during a test run of the simulation exercise to catch any problems before they might jeopardize an actual training event. Inconsistent values trigger an error message delivered to the command console indicating a problem.

    "Since integrating EMPRESS in ABACUS five years ago, we have had little or no need for technical support. The product simply operates as desired and does it with no trouble," comments Chris Fasulo, Senior Systems Engineer at Raytheon Company.

    ABACUS is an internationally NATO used training application that can be tailored to meet the specific demands of a variety of organizations, both military and civilian. On the frontier for ABACUS is the development of FCAST, the Future Command and Staff Trainer. "We are happy with the way EMPRESS works for us and are likely to use EMPRESS with every new system that we deploy," concludes Mr. Fasulo.

For further information about ABACUS visit www.raytheon.com.

Empress Technical Support Corner

Empress Replication Server

In this practical example, we create a replicate of a table in a remote host. The first set of operations, relate to the master table and are performed on a database masDB in a host named head.xyz.com. The second set of operations relate to the replicate table and are performed on database repDB in host named branch.xyz.com.

Operations related to Master Table:
    Imagine a Table masTable in database masDB. Change the type of the table masTable to MASTER:

    In the host, head.xyz.com start a Replication Master Server called emprepsv using the Empress Server Administration Utility, empsvadm. This Server will take administrative and synchronization requests from its clients.
empsvadm emprepsv start

    Authorize the tables that are allowed to be replication replicates of the master table. An authorized table is specified with its "Replicate-Side Access Information", which is a combination of its host name, database name, and table name. Here we give authorization to a table repTable in a database repDB in a host branch.xyz.com, in order to be the replicate of masTable.
SQL>CREATE REPLICATION REPLICATE
'branch.xyz.com':'/usr/empress/repDB':repTable ON masTable;

Operations related to Replicate Table
    Create a Replicate Table, to replicate the data from the Master Table masTable. In the host branch.xyz.com and a database repDB, create Replicate Table repTable. A Replication Master Table (RMT) is accessed by its "Master-Side Access Information", which is a combination of a Replication Master Server, the database and the table of the RMT.
SQL> CREATE REPLICATE repTable FROM emprepsv:'masDB':masTable;

The repTable is a read-only table, and the users of the table can not update its contents. The only updates to this table are through synchronization with its Replication Master Table.

continue on page 4.




EMPRESSIONS is published biannually as a service to clients and prospective customers of Empress Software. Reproduction of articles is not allowed without the written consent of Empress Software Inc.

For information on the products or companies covered in this newsletter, please contact Empress Software by telephone, fax, or e-mail, using any of the numbers listed below:
Empress Software Inc.
6401 Golden Triangle Drive
Greenbelt, Maryland
USA 20770
Tel: (301) 220-1919
Fax: (301) 220-1997
E-mail: sales@empress.com
Empress Software Inc.
3100 Steeles Avenue East
Markham, Ontario
Canada L3R 8T3
Tel: (905) 513-8888
Fax: (905) 513-1668
E-mail: sales@empress.com