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SOFTWARE ENGINEERING

Scheduler Dependency Resolution

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UPDATED 2026-06-21
TYPESequence
USE-CASEScheduler Operations
EXAMPLEScheduler Dependency Resolution
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CASE ANALYSIS

Scenario

A task scheduler receives a job from a client. The dependency resolver queries the database for task states, determines which tasks have all dependencies satisfied, and either schedules them for execution or reports a deadlock.

Key decisions

  • Use of alt fragment to branch between success and deadlock
  • Activation scopes for Scheduler and DependencyResolver
  • Inclusion of Database and Worker as external participants

When to reuse this

When modeling the internal flow of a task scheduling system with dependency resolution and distributed execution, such as in workflow engines or CI/CD pipelines.

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