For a businessperson, the choice between Single-Agent and Multi-Agent AI architecture directly impacts scalability, complexity handling, and operational resilience in enterprise processes.

A Single-Agent System is ideal for simpler, well-defined, and narrow tasks like summarizing emails or handling basic, linear customer support queries. It is faster to develop, easier to debug, and requires less computational overhead, making it a good choice for rapid prototyping or isolated process automation.

Conversely, a Multi-Agent System (MAS) involves multiple specialized AI agents that collaborate and communicate to achieve a complex, overarching goal. This architecture is far more effective for intricate, multi-domain business workflows, such as end-to-end customer onboarding, supply chain optimization, or real-time financial risk monitoring. MAS provides superior fault tolerance (if one agent fails, others can adapt), scalability, and the ability to leverage diverse domain expertise across the 'crew' of agents, allowing for the automation of complex, cross-functional tasks that are critical to modern enterprise efficiency and competitive advantage. The decision should hinge on the complexity and interconnectedness of the business process targeted for automation.