Differences

This shows you the differences between two versions of the page.

--- public:99_annexes:annex-b-terms-and-definitions:t:timeout [2026/09/12 17:42] – removed - external edit (Unknown date) 127.0.0.1
+++ public:99_annexes:annex-b-terms-and-definitions:t:timeout [2026/09/12 17:43] (current) – ↷ Links adapted because of a move operation nick_dido
@@ Line 1: / Line 1: @@
+====== Timeout ======
+[[public:99_annexes:annex-b-terms-and-definitions:start|Go up to Terms and Definitions]]
+===== Discussion =====
+A Timeout is a condition that occurs when a defined [[public:99_annexes:annex-b-terms-and-definitions:t:timing_condition|Timing Condition]] expires before a required event, response, operation, or activity completes.
+A Timeout can apply while awaiting:
+  * An event
+  * A response
+  * A message
+  * A state transition
+  * Completion of an operation
+  * Completion of an activity
+  * Completion of a [[public:99_annexes:annex-b-terms-and-definitions:s:sequence_step|Sequence Step]]
+  * Completion of a [[public:99_annexes:annex-b-terms-and-definitions:t:test_step|Test Step]]
+  * Completion of a [[public:99_annexes:annex-b-terms-and-definitions:t:test_executable|Test Executable]]
+  * Completion of [[public:99_annexes:annex-b-terms-and-definitions:t:test_execution|Test Execution]]
+  * Availability of a [[public:99_annexes:annex-b-terms-and-definitions:r:resource|Resource]]
+  * Availability of a [[public:99_annexes:annex-b-terms-and-definitions:n:node|Node]]
+  * Satisfaction of another defined condition
+A Timeout can identify:
+  * The subject of the Timeout
+  * The awaited event, response, operation, or activity
+  * The applicable Timing Condition
+  * The starting event
+  * The starting time
+  * The maximum permitted duration
+  * The expiration time
+  * The time basis
+  * The clock source
+  * The unit of measure
+  * The required precision
+  * The permitted timing tolerance
+  * The condition observed at expiration
+  * The resulting progression
+  * The resulting [[public:99_annexes:annex-b-terms-and-definitions:t:test_result|Test Result]]
+  * The resulting [[public:99_annexes:annex-b-terms-and-definitions:v:verdict|Verdict]]
+  * The applicable [[public:99_annexes:annex-b-terms-and-definitions:g:governance_policy|Governance Policies]]
+  * The supporting [[public:99_annexes:annex-b-terms-and-definitions:e:evidence|Evidence]]
+  * Its [[public:99_annexes:annex-b-terms-and-definitions:p:provenance|Provenance]]
+  * Its [[public:99_annexes:annex-b-terms-and-definitions:t:traceability|Traceability]]
+A Timeout can cause:
+  * A retry
+  * A repeated observation
+  * Alternative progression
+  * Error-handling progression
+  * Cancellation of an operation
+  * Termination of a Sequence Step
+  * Termination of Test Execution
+  * Creation of a Test Result
+  * Assignment of a Verdict
+  * Recording of an error
+  * Notification of an [[public:99_annexes:annex-b-terms-and-definitions:a:actor|Actor]]
+  * Another response established by the applicable Test Definition or Governance Policy
+===== Definition =====
+//condition that occurs when a defined [[public:99_annexes:annex-b-terms-and-definitions:t:timing_condition|Timing Condition]] expires before a required event, response, operation, or activity completes//
+===== Source =====
+Adapted from:
+  * [[public:99_annexes:annex-b-terms-and-definitions:t:timing_condition|Timing Condition]]
+  * [[public:99_annexes:annex-b-terms-and-definitions:t:test_sequence|Test Sequence]]
+  * [[public:99_annexes:annex-b-terms-and-definitions:s:sequence_step|Sequence Step]]
+  * [[public:99_annexes:annex-b-terms-and-definitions:t:test_execution|Test Execution]]
+  * DIDO Reference Implementation Conceptual Model
+  * DIDO-TE draft Requirements Register
+This definition treats Timeout as the condition resulting from expiration of an applicable Timing Condition. It separates the Timeout from the duration, timer, and response associated with that condition.
+===== Note =====
+A Timeout differs from a [[public:99_annexes:annex-b-terms-and-definitions:t:timing_condition|Timing Condition]]:
+  * A Timing Condition establishes or characterizes a temporal constraint
+  * A Timeout occurs when that temporal constraint expires before the required event, response, operation, or activity completes
+A Timeout differs from the maximum permitted duration:
+  * The maximum permitted duration establishes the temporal limit
+  * A Timeout is the condition that occurs when the limit expires without the required completion
+A Timeout differs from a timer:
+  * A timer measures or tracks elapsed time
+  * A Timeout is the condition produced when the applicable time limit expires
+A Timeout differs from a failure:
+  * A Timeout records that a required event, response, operation, or activity did not complete within the defined time
+  * A failure identifies an inability to satisfy an applicable requirement or condition
+A Timeout can constitute a failure when the applicable [[public:99_annexes:annex-b-terms-and-definitions:a:acceptance_criteria|Acceptance Criteria]] classify expiration of the Timing Condition as a failure.
+A Timeout does not necessarily identify the cause of the delayed or missing completion. Possible causes can include:
+  * An unavailable Node
+  * An unavailable Resource
+  * Communication delay
+  * Network failure
+  * Processing delay
+  * Deadlock
+  * An invalid request
+  * An external dependency
+  * An incorrect Timing Condition
+  * An interrupted operation
+  * Another unobserved condition
+A Timeout does not automatically determine the applicable Verdict. The Test Definition, Acceptance Criteria, or Governance Policy determines whether the Timeout produces:
+  * PASS
+  * FAIL
+  * ERROR
+  * INCONCLUSIVE
+  * Another permitted Verdict
+A Timeout used to control progression within a [[public:99_annexes:annex-b-terms-and-definitions:t:test_sequence|Test Sequence]] should identify the [[public:99_annexes:annex-b-terms-and-definitions:s:sequence_step|Sequence Step]] that follows the Timeout.
+A reproducible [[public:99_annexes:annex-b-terms-and-definitions:t:test_run|Test Run]] should identify:
+  * The applicable Timing Condition
+  * The maximum permitted duration
+  * The starting event
+  * The clock source
+  * The permitted tolerance
+  * Whether the Timeout occurred
+  * The progression caused by the Timeout
+  * The resulting Test Result
+  * The resulting Verdict
+  * The supporting Evidence
+===== Example =====
+A [[public:99_annexes:annex-b-terms-and-definitions:s:sequence_step|Sequence Step]] submits a proposed transaction to a Node and waits for a response.
+The applicable Timing Condition establishes:
+  * Submission of the complete transaction as the starting event
+  * Receipt of the complete response as the completion event
+  * Five seconds as the maximum permitted duration
+  * A monotonic clock as the clock source
+  * Milliseconds as the measurement unit
+  * Ten milliseconds as the permitted timing tolerance
+The Node does not return a complete response before the maximum permitted duration expires. A Timeout occurs.
+The [[public:99_annexes:annex-b-terms-and-definitions:t:test_run|Test Run]] records:
+  * The Sequence Step
+  * The transaction-submission time
+  * The expiration time
+  * The applicable Timing Condition
+  * The Timeout
+  * The absence of a complete response
+  * The error-handling [[public:99_annexes:annex-b-terms-and-definitions:e:execution_path|Execution Path]]
+  * The resulting Test Result
+  * The assigned Verdict
+  * The supporting Evidence
+The Test Definition directs Test Execution to an error-handling Sequence Step after the Timeout.
+----
+<WRAP centeralign>
+© 2026 Dido Solutions, Inc. and Jackrabbit Consulting, Inc.
+</WRAP>