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Add 21-50 question of 01/22

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Lorenzo 2022-11-02 09:13:43 +01:00
parent 604c2269b6
commit 5c561b5538
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15
Ingegneria del Software/36/correct.txt Normal file
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<pre>
class Monitor
InputReal x, y; // plant output
OutputBoolean wy;
Boolean wz;
initial equation
wy = false;
equation
wz = (time > 10) and (x >= 10) and (x <= 20) and ((y < 0.5*x) or (y > 0.7*x)) ;
algorithm
when edge(wz) then
wy := true;
end when;
end Monitor;
</pre>

4
Ingegneria del Software/36/quest.txt Normal file
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Si consideri il seguente requisito:
RQ: Dopo 10 unità di tempo dall'inizio dell'esecuzione vale la seguente proprietà: se la variabile x è nell'intervallo [10, 20]
allora la variabile y è compresa tra il 50% di x ed il 70% di x.
Quale dei seguenti monitor meglio descrive il requisito RQ ?

15
Ingegneria del Software/36/wrong 2.txt Normal file
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<pre>
class Monitor
InputReal x, y; // plant output
OutputBoolean wy;
Boolean wz;
initial equation
wy = false;
equation
wz = (time > 10) and (x >= 10) and (x <= 20) and (y >= 0.5*x) and (y <= 0.7*x) ;
algorithm
when edge(wz) then
wy := true;
end when;
end Monitor;
</pre>

15
Ingegneria del Software/36/wrong.txt Normal file
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@ -0,0 +1,15 @@
<pre>
class Monitor
InputReal x, y; // plant output
OutputBoolean wy;
Boolean wz;
initial equation
wy = false;
equation
wz = (time > 10) and ((x < 10) or (x > 20)) and ((y < 0.5*x) or (y > 0.7*x)) ;
algorithm
when edge(wz) then
wy := true;
end when;
end Monitor;
</pre>