COMUNICATION
FUNCTIONS
ELEMENTS
RECEIVER
MENSSAGE
PROCESS
SENDER
STEPS
WRITE
CODE
I
I
I
E
L
E
M
E
N
T
S
F
E
P
S
A
D
M
Y
X
O
A
A
U
I
N
C
U
U
T
J
Y
Y
D
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L
Y
U
U
O
O
K
A
U
E
P
R
O
C
E
S
S
Z
H
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I
A
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U
U
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B
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C
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D
D
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P
A
F
A
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L
V
R
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U
U
L
M
P
Y
C
Z
C
E
U
U
T
E
A
O
Q
O
E
M
O
I
Z
E
V
N
N
P
D
F
U
U
G
N
H
L
N
O
Z
I
C
V
V
N
W
I
A
O
S
M
I
U
C
A
E
T
D
X
E
E
Z
X
E
S
J
L
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Z
R
C
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X
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K
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L
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J
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K
I
U
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A
S
U
A
H
S
U
W
W
R
I
T
E
K
U
U
F
