Agentic AI Reference Architecture

Orchestration · Software component

Asynchronous Dependency-Chaining Executor

Software componentOrchestrationOrchestration & Toolsarc:AsyncDependencyChainExecutor

A dependency-ordered executor that spawns all agents at once and has each await futures for its own dependencies, so an agent starts as soon as its specific prerequisites complete.

Responsibility. Starts each agent as soon as its own dependencies resolve.

Also known as: Asynchronous dependency chaining, Future-based dependency waiting

Variant of Dependency-Ordered Executor abstract

When to choose. Choose when phase-barrier latency proves unacceptable and maximal parallelism is needed; accepts higher complexity and cascading cancellation of dependents when an agent fails.

specializesalternative toDependency-Ordered Executor: specializesDependency-Ordered Execu…Phase Barrier Executor: alternative toPhase Barrier Executor
Direct neighbourhood (hover for relationship types)

Relationships

alternative to variability

Design guidance

Classification

Patterns
Futures/promises dependency chaining
Quality attributes
Performance efficiency (ISO/IEC 25010)
Risks mitigated
Barrier-induced idle time

Sources

  1. Ch8.2A: T. Nguyen, "Error Rates and Reliability," in Mastering Agentic AI Systems: Guide for the NVIDIA NCP-AAI Exam, 1st ed. 2026, ch. 8.2A. ISBN: 9798244538229.