CentraSite Documentation : CentraSite Administrator’s Guide : Customizing Lifecycle Management : Overview of Lifecycle Management : Lifecycle Models
Lifecycle Models
A lifecycle model is a state machine that can be maintained in CentraSite and applied to an asset type. In CentraSite, the lifecycles of assets, policies and also lifecycle models themselves can be managed. Lifecycle models are defined by administrators for their organization.
There are two levels of lifecycle models: system-wide models and organization-specific models. A system-wide model applies to objects that can be owned by any organization, whereas an organization-specific model applies only to objects that are owned by a specific organization. System-wide models have precedence over organization-specific models; when a system-wide model for an object type (set of types) exists, it takes priority over all other models. However, if an organization-specific model already exists and a system-wide model is added, then the organization-specific model still exists and the objects that are in this model will complete their lifecycle without effects. Only new objects will be assigned to the new system-wide model.
Each organization-specific lifecycle model belongs to an organization. System-wide models do not belong to any organization, but apply to all organizations. System-wide models may have organization-specific policies attached to them.
For a given object type (say Service), each organization can define and activate its own lifecycle model, so that there are several models that can control the Service type. However, per organization only one lifecycle model can be active. When a new Service instance is created, then the creating user belongs to an organization and that organization's active lifecycle model will be used to control the particular Service instance.
It is possible to define a lifecycle model which consists of multiple nodes (registries) to make up one overall model. Each node only knows the model for the current node. It also knows the nodes that make up the complete lifecycle model and where they are.
Global models may have organization-specific policies attached to them. Organizational models are technically hierarchical, as organizations may contain sub-organizations.
A lifecycle model can itself be assigned to a lifecycle model, that is, to enable a lifecycle model it may be necessary to go through a lifecycle model to activate it for usage.
Lifecycle management is possible for the object types that are classified as assets, as well as for policies and lifecycle models themselves.
The following points should also be noted:
*Organization-specific models are defined by the administrator of the organization.
*An object type may have more than one lifecycle model defined, but only one per organization can be defined as active at any given time.
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