What is the difference between a Symbolic map and Physical
map ?
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Answer / manik
Symboli Map is the copy library member & Physical map is
the load module.
Physical map is the screen that we see & symbolic map is
used in application program to defining & acessing fields
in the screen.
| Is This Answer Correct ? | 58 Yes | 4 No |
Answer / sriramu.t
Physical maps controls the screen alignment, sending and
reciving of constants and datato and from terminal.
Physical map is the load module.
Symbolic maps are define the map fields used to store
variable data reference in COBOL PGM.Symboli Map is the
copy library member
| Is This Answer Correct ? | 29 Yes | 4 No |
Answer / cheran pogu
The primary objective of the physical map is to ensure the
device independence in the applicaiton program. More
concretely, for input operations, the physical map defines
maximal data length and starting position of each field to
be read and allows BMS to interpret an input data stream.
For output operations, the physical map defines starting
position, length, field characteristic (Attibute Bytes) and
default data for each field, and allow BMS to add control
characters and commands for ouput in order to construcht an
ouput data stream.
The primary objective of the BMS symbolic map is to ensure
the device and format independec to the application
programs. Therefore, through the symbolic map, a layout
change in the formatted screen can be done independent of
the appllication program coding as long as the field name
and lenght remain same.
it is used by the application program, which issues a COBOL
COPY statement in order to include a symbolic map in the
program.
| Is This Answer Correct ? | 15 Yes | 6 No |
Answer / lenin
Physical Map : It denotes the display format of the
terminal,it contains the details of unnamed fields and
attribute , posiion and length details of named fields.It
is stored along with the host language program,
Sympolic map: It consists of all the named fields and for
each named field four fields(Length,flag,attribute(by
redefining Flag) and the original Value) will be created.
It will be stored in the copy library.
| Is This Answer Correct ? | 11 Yes | 3 No |
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