Computational Nucl. Phys. 2 - Nucl. Reactions by K. Langanke, et. al.,

By K. Langanke, et. al.,

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The pair of items (attribute ID and attribute value) is sometimes referred to as Attribute Value Assertion, or AVA. That is, an attribute is asserted to possess a certain value. In addition to defining the syntax for external communication, attribute definitions may also include the types of checking appropriate for the values. For example, if the syntax of the attribute is defined to be an integer or real, then the value can be checked to be greater, equal, or less than a specific value. If the syntax is a complex structure consisting of multiple elements, then simple matching criteria will not be applicable.

With this approach, some instances of the same class may be created by external request and others based on internal resource requirements. Even though the information model is not used to capture the concept of synchronization, it is worth noting here in the context of operations. Using the management protocol defined for use in TMN, we can specify either best effort or atomic synchronization. The synchronization referred to here is not across multiple objects in different systems; the same managed system is responsible for the multiple objects.

For example, state representing whether the resource is active or standby may be modeled as an attribute, requesting a loop-back test may be modeled as an operation, and reporting a circuit pack failure, as a notification. 5. It is not required that every package include all the characteristics. However, if an instance includes a package, all the properties defined for that package must be present. In other words, a package is atomic, and further breakdown is not permitted. I I Conditional Package (Present if) Mandatory Package Conditional Package (Present if) Mandatory Package Behavior (0 or n) Attributes (0 or n) Operations (0 or n) Notifications (0 or n) Behavior (0 or n) Attributes (0 or n) Operations (0 or n) Notifications (0 or n) Figure.

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