Micro Saint

To represent complex, dynamic human/system behavior, many aspects of the system may need to be modeled in addition to simply task lists and sequence. In this subsection, we will use the task network modeling tool Micro Saint as an example. 

This basic task network is built in Micro Saint via a point-and-click drawing palette. Through this environment, the user creates a network as shown in Figure 5. Networks can be embedded within networks, allowing for hierarchical construction. In addition, the shape of the nodes on the diagram can be chosen in order to represent specific types of activity. 

Time distribution Micro Saint will conduct Monte Carlo simulations with task performance times sampled from a distribution as defined by this option (e.g., normal, beta, exponential). 

Figure 5 The Main Window in Micro Saint for Task Network Construction and Viewing.

Figure 6 The User Interface in Micro Saint for Providing Input on a Task.

There are other aspects of task network model development. Some items are defining a simulation scenario, defining continuous processes within the model, and defining queues in front of tasks. Further details of these features can be obtained from the Micro Saint User s Guide (Micro Analysis and Design 1999). 

Figure 8 An Example of a Task Network Animation during Model Execution in Micro Saint.

Lawless, M. L., Laughery, K. R., and Persensky, J. J. (1995), Micro Saint to Predict Performance in a Nuclear Power Plant Control Room A Test of Validity and Feasibility, NUREG/CR-6159, Nuclear Regulatory Commission, Washington, DC, August. 

Micro Analysis and Design (1999), Micro Saint, Version 3.0 User s Guide, Micro Analysis and Design, Boulder, CO, May. 

Drews, C., Laughery, R. R., Kramme, K., and Archer, R., LHX Cockpits Micro SAINT Simulation Study and Results, Report prepared for Texas Instruments—Equipment Group, Dallas, June 1985. 

With high level architecture (HLA), an individual simulation or set of simulations that was developed for one purpose can be applied to another application. The HLA will provide a structure that wUl support reuse capabilities available in different simulations that will reduce the cost and time required. Through HLA, simulations can exchange data dynamictdly and interact with each other as they run. HLA will facilitate interoperability, software interface, and data exchanges. Simulation software will incorporate these developments, as is the case with MODSIM III and Micro Saint (Yu et al. 1998). 

Microsaints http //www.maad.com/index.pl/micro saint... 

The routing information was showed in path tap. Paths describe the conditions under which particular paths were taken. There were three different decision types Tactical, probabilistic, or multiple were used in Micro Saint Sharp software. The decision type will determine the path or paths that an entity should take. Decision... 

Kumagai S, Gokan T, Isono I, Hayakawa K, Keola S (2(K)9) Geographical simulation analysis for logistic enhancement in East Asia. ERIA Research Project Report, pp 7-2 MAAD (2009) In Micro saint sharp ustT guide... 

Micro-Saint is a discrete-event task network-modelling tool that can be described by flow diagrams and can be analysed to test, for example, alternative solutions or options, assess workload, function allocation, and temporal analysis (albeit based on time estimates). The analysis process requires input from subject matter experts on the task under investigation, training and familiarity with using the tool, and it can be difficult and time consuming to use. 

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