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<h1>Overview<a class="headerlink" href="#overview" title="Permalink to this headline">¶</a></h1> | |
<p><strong>OpenPASS</strong> is a tool for executing a traffic based Monte-Carlo simulation and provides capabilities for the following two levels of variation:</p> | |
<ol class="arabic simple"> | |
<li><p><strong>Experiment:</strong> Topmost, an experiment defines the domains of possible inputs, which shall be compared, such as <em>“traffic at high volume”</em> with <em>“traffic at low volume”</em>. | |
In this sense, a parameter variation is done at a very coarse level, resulting in two sets of inputs. | |
Note that this level is covered by the GUI (see <a class="reference internal" href="../tutorials/20_pcm_simulation.html#pcm-simulation-guide"><span class="std std-ref">PCM Simulation</span></a>).</p></li> | |
<li><p><strong>Invocation:</strong> When an input-set is available, <strong>openPASS</strong> invokes a defined number of runs, resulting in a probabilistic sampling of the given state under parameterizable conditions. | |
For example, in the aforementioned situation <em>“traffic at high volume”</em>, it would generate participants at <em>“lower speeds”</em> and <em>“smaller gaps”</em>. | |
Thereby parameterizable means, that the user has the freedom to define probabilities defining <em>“lower speed”</em> and <em>“smaller gaps”</em>. | |
In each invocation, <strong>openPASS</strong> samples from these probabilities to generate a possible traffic situation under the given parameter variation.</p></li> | |
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