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![handle is hein.gao/gaobabkzd0001 and id is 1 raw text is:
by th fie ',kp
COMPTROLLER GENERAL OF THE ITE SATES
WASI-INGTON. D.C. 20548
RELEASED e
B-163074
Dear Mr. Chairman:
J-/¢
This is in.response to the House Committee on Appropria-
tions' request, contained in House Report 92-666, dated Novem-
ber 11, 1971, that the General Accounting Officeireview the 7
system engineering study of the Army's Tactical Operations
7 System (TOS) Operable Segment7 ]Yn That-report and in subse-
quent discussions with your office, we were informed that you
were particularly interested in the following matters: (1)
the interoperability aspect of TOS, (2) the compatibility as-
pect of TOS, (3) the development of software for the TOS Op-
erable Segment, (4) the adoption of a standard data language
by the Army, (5) work-load simulation, and (6) the Army's
justification for a proposed sole-source award in procuring
the TOS Operable Segment.
BACKGROUND
TOS is an automatic data processing system that the Army
is developing which will provide for automatic processing and
storage of input data and automatic retrieval and display of
information necessary for timely decisions in the areas of
operations, intelligence, and fire-support coordination.
As the first step in an incremental development of TOS, a
system engineering study made by the Army from July to Decem-
ber 1971 developed specifications for a test bed which would
use a segment of a division-level system called the TOS Oper-
able Segment. The TOS Operable Segment is an austere milita-
rized system that the Army proposes to buy consisting of one
division central computer center, one division remote computer
center, one brigade remote computer center, two group display
devices, 19 message input-output devices, 18 message input
devices, a software support system,-and some equipment for a
teleprocessing design center. In the TOS Operable Segment,
the data processing of three functions--enemy situation,
friendly unit information, and Army air operations--will be
automated. The TOS Operable Segment will be used to (I)
test the feasibility of using general-purpose militarized
equipment for TOS, (2) validate the TOS concept, (3) refine
user requirements, (4) provide empirical data to support](ViewImageLocal?handle=hein.gao/gaobabkzd0001&div=1&collection=&method=preview&ext=.png&size=3)