Page 34 - DCAP601_SIMULATION_AND_MODELING

Simulation and Modelling

Notes The program yielded the following cost figures for the five inventory policies:

P Q Cost in `
125 150 38679.75
125 250 31268.25

150 250 29699.25
175 250 26094.00
175 300 27773.25
Thus, Policy IV (P = 175, Q = 250) is the best amongst the five considered.

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Caselet NeST Arm unveils Simulation Debugger

shling Microsystems, a division of Kerala-based diversified NeST Group, has
launched simulation debug software for designers of electronics systems.
ADebugging is a methodical process of finding and reducing the number of bugs,
or defects, in a computer programme or a piece of electronic hardware.
Named PathFinder-XD, the new software provides full support for debugging bare-metal
and embedded Linux-based applications, a NeST Group spokesman said here on Monday.
It operates on Linux x86 and Windows hosts and is now available for free download at
www.ashling.com and www.nestsoftware.com.
Designers of embedded electronics systems are faced with the challenge of debugging the
complex software that runs on them. Availability of efficient tools will help designers in
quickly debugging their software and thereby getting their products to market faster, the
spokesman said.
He quoted Mr N. Jehangir, Vice-Chairman and Managing Director of NeST Group, as
saying that the PathFinder-XD simulator software is the first in a series of new embedded
software and hardware tools that the NeST Group is planning to roll out from the Ashling
division. More high-tech and effective tools of this genre will be brought out from the
group's development facility in Thiruvananthapuram and manufacturing facility in Kochi
and Bangalore, the spokesperson added.

1.6 Basic Nature of Simulation

The word ‘simulation’ is frequently used alone in a variety of contexts. For example, it is
sometimes used as a noun to imply a specialized computer program (as in, ‘A simulation has
been developed for the proposed system.’). It is also used frequently as an adjective (as in, ‘The
simulation results indicate that the risk of failure is minimal,’ or ‘Several extensions have been
introduced into the language to increase its effectiveness for simulation programming’). These
wide-ranging and essentially inconsistent usages of the word ‘simulation’ can cause regrettable
confusion for neophytes to the discipline. As a rule, we avoid such multiplicity of uses of this
word but, as will become apparent, we do use the word as an adjective in two specific contexts
where the implication is particularly suggestive and natural.

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