Introduction; General - RCA 70/630 System Information Manual

1. INTRODUCTION
GENERAL
• The 70/630 Data Gathering System (DGS) is an on-line data gather-
ing and communication system which provides for the transmission of
fixed and variable data from a number of remote input stations. The
70/630 DGS has been designed to compress the time frame from the point
of data origination to its insertion into the data processing system.
There are two ways or time frames in which data can be inserted into
a processing system -- in batches or as individual transactions at the time
of occurrence. (See Figure 1.) By operating on an individual transaction
basis, some of the efficiencies of batch operation are lost; however, the
inherent disadvantages of long elapsed time from data origination to its
use in file updating or in pinpointing critical exceptional situations are
eliminated.
Because much of the data that is transmitted with each transaction is
standard and anticipated, it can be prepared in advance by the central
processing facility. Therefore, only the variable data which complements
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DATA
ORIGINATION
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NORMAL ELAPSED TIME FRAME
CENTRAL
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FACILITY
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BATCHES
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COMPRESSED TIME FRAME
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Figure 1. "There Are Two Time Frames"
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