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Property
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Description
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Identifier
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The unique identifier assigned to the state. While an identifier is assigned to a state when you insert it, you can change it to any unique value. The format for the assigned identifier is specified by Markov State Identifier, which appears under Identifiers in the System file properties. For more information, see Identifiers System File Properties.
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Description
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A description of the state.
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State
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The state assigned to the system. Choices are.
• Good. The component or assembly is operational and performance is adequate. The value for Capacity is set to 100.
• Failed. The component or assembly is not operational. The value for Capacity is set to 0. All absorbing states are identified as failed states, including common cause failure states, catastrophic states, and imperfect coverage failure states.
• Degraded. The component or assembly may or may not be operational, depending upon whether the value that you specify for Capacity meets or exceeds the specified required capacity. If the capacity is equal to or greater than the specified required capacity, then the state is classified as a good state. If the capacity is less than the specified required capacity, then the state is classified as a failed state.
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Capacity
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The throughput, output, or production of the system when it is in the specified state. Capacity is specified in terms of percentages (from 0 to 100) rather than as absolute values. When Good or Failed is selected for State, this field is display-only. The capacity is always 100 for a good state and 0 for a failed state. When Degraded is selected for State, the value in this field can be modified. While the default is 100, you should change it to the appropriate value.
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Initial condition
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The probability (between 0 and 1) that the system will be in this state when it initially starts operating. In a diagram with only one initial state, the value for the initial state is 1. In a diagram with more than one initial state, the values for all initial states must be equal to 1.
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Initial condition total
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The total of the probabilities assigned to all initial states in the diagram. This calculated result field is-display only. The initial conditions of all initial states must add up to 1 before Markov calculations can be run.
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Cost
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Indicates whether the cost per unit time for the specified capacity of the state is based on a gain or a loss.
• Gain. When selected (default), the cost per unit time is a gain.
• Loss. When selected, the cost per unit time is a loss. Because losses can be different for different failures, this can be modeled using the cost per each state visit. Because repair is a departure from a failed state, repair costs can be modeled using a cost per each departure.
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X per unit time
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The numeric value for the gain or loss per unit time. The cost associated with a state is proportional to its performance level as well as the time spent in that state. The default is 0.
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