Lifecycle State [Dido Solutions, Inc Wiki]

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====== Lifecycle State ======

[[public:99_annexes:annex-b-terms-and-definitions:start|Go up to Terms and Definitions]]

===== Discussion =====

A Lifecycle State identifies the condition of a modeled thing at a specified time during its existence.

A Lifecycle State provides a stable semantic representation of the modeled thing between applicable transitions. A change from one Lifecycle State to another may be caused, authorized, observed, or recorded by a [[public:99_annexes:annex-b-terms-and-definitions:l:lifecycle_event|Lifecycle Event]].

A Lifecycle State may identify:

  * The modeled thing to which the state applies
  * The assigned state
  * The time or period during which the state applies
  * The event that caused or recorded entry into the state
  * The preceding state
  * The permitted succeeding states
  * The rule authorizing the transition
  * Evidence supporting the state assignment
  * Provenance describing how the state assignment was established

A Lifecycle State is distinct from a [[public:99_annexes:annex-b-terms-and-definitions:l:lifecycle_stage|Lifecycle Stage]]. A Lifecycle Stage represents a broader phase of a lifecycle and may contain multiple Lifecycle States.

A Lifecycle State is also distinct from a Lifecycle Event. A Lifecycle State represents a condition that applies at a specified time or during a specified period. A Lifecycle Event represents an occurrence that may cause, authorize, observe, or record a transition between states.

A Lifecycle State may be specialized for a particular kind of modeled thing. Examples include:

  * [[public:99_annexes:annex-b-terms-and-definitions:o:operational_lifecycle_state|Operational Lifecycle State]]
  * [[public:99_annexes:annex-b-terms-and-definitions:l:logical_node_lifecycle_state|Logical Node Lifecycle State]]
  * Agreement Lifecycle State
  * Transaction Lifecycle State
  * Contract Lifecycle State
  * Payment Lifecycle State
  * Settlement Lifecycle State

===== Definition =====

> //condition of a modeled thing at a specified time during its existence//

===== Source =====

Adapted from:

  * [[public:05-semantics:01-kinds-of-semantics:06-lifecycle-semantics|Lifecycle Semantics]]
  * [[public:99_annexes:annex-b-terms-and-definitions:l:lifecycle_stage|Lifecycle Stage]]
  * [[public:99_annexes:annex-b-terms-and-definitions:l:lifecycle_event|Lifecycle Event]]
  * [[public:99_annexes:annex-b-terms-and-definitions:o:operational_lifecycle|Operational Lifecycle]]
  * [[public:99_annexes:annex-b-terms-and-definitions:o:operational_lifecycle_state|Operational Lifecycle State]]
  * [[public:99_annexes:annex-b-terms-and-definitions:l:logical_node_lifecycle_state|Logical Node Lifecycle State]]
  * [[https://www.omg.org/spec/SysML/2.0|OMG Systems Modeling Language Version 2.0]]
  * [[https://www.iso.org/standard/81702.html|ISO/IEC/IEEE 15288:2023, Systems and software engineering — System life cycle processes]]
  * [[https://www.iso.org/standard/84709.html|ISO/IEC/IEEE 24748-1:2024, Systems and software engineering — Life cycle management — Part 1: Guidelines for life cycle management]]

This defines//Lifecycle State// as the general concept specialized by Operational Lifecycle State, Logical Node Lifecycle State, Agreement Lifecycle State, and other domain-specific lifecycle-state concepts.

===== Note =====

  * A Lifecycle State applies to an identified modeled thing
  * A Lifecycle State identifies a condition at a specified time or during a specified period
  * A modeled thing may occupy different Lifecycle States at different times
  * The applicable lifecycle model defines the permitted Lifecycle States
  * The applicable lifecycle model defines the permitted transitions among Lifecycle States
  * A Lifecycle Event may cause, authorize, observe, or record a transition
  * A Lifecycle Stage may contain multiple Lifecycle States
  * A Lifecycle State is distinct from a Lifecycle Stage
  * A Lifecycle State is distinct from a Lifecycle Event
  * A current Lifecycle State does not overwrite earlier Lifecycle States
  * State history must preserve the order and applicable periods of earlier state assignments
  * A Lifecycle State may be asserted, observed, calculated, or derived
  * A derived Lifecycle State should identify the rule and source information used to derive it
  * A Lifecycle State does not by itself constitute a legal determination
  * The platform-independent definition does not prescribe a particular state-machine notation, execution engine, or serialization format

===== Example =====

An Agreement progresses through Proposed, Under Negotiation, Executed, Effective, and Expired Lifecycle States.

The execution of the Agreement is a Lifecycle Event that causes or records a transition from Under Negotiation to Executed.

The arrival of the Effective Date causes or records a transition from Executed to Effective.

The current Lifecycle State does not overwrite the earlier state assignments. Each state and transition remains available in the Agreement's lifecycle history.

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