Page 79 - Software and Systems Requirements Engineering in Practice

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C h a p t e r 3 :
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Supports
different
metrics
Partial goal model for a nuclear power plant simulator (Picture courtesy of Professor Jane
Maileable
French, English,
Portable
languages
Japanese.
Supports
different
German,
systems.
configurations.
Deployable
on various
hardware
operating
systems.
multiple
Run on
simulations
system and
for large
computers
plants.
scaled
limited
Run
small
with
disk.
Scalable
simulations
Reliability
acceptable
for small
response
plants.
scaled
Specify
times.
Run
user
responses.
treatment of a
expected
High Performance Extensible Able to accommodate Responsive new failure modeling Able to tools scenarios. Support accommodate Q2 simulations of physical various types changes of power New scenario in plant. plants received from Changed nuclear regulatory Nuclear Fossil fuel scenar
Support malfunction.
Specify
student’s
Score a
scenarios
Effective
teaching
scenarios.
Integrate computations at 10 frames per second. Optimizing compiler from Fortran to Assembler Q7 Add new C Q10 Malfunctions simulation states. Q11
Real-time simulations must behave identically within xmicrosecs of real plant Refresh screens in 2 secs. Gauges respond within < 200ms of physical plant. Q4 Virtual network with inbuilt memory management services Discrete failures Q8 Q9 Permanently cache common Support simul
Real-time feedback Temporal High fidelity
ASCII message protocol responds within < 200ms of physical Q5 Metrics within 1% of real plant performance high fidelity Quantitative high fidelity Helps Hurts Impact point QAMs FIGURE 3.6
Lights
plant
Q6 Key C Q#