Building intent-driven UI testing with Amazon Nova Act

Judgment

Epsilon product teams deciding whether to adopt Nova Act UI testing must trade the low-level control and deterministic debugging of script-based suites for plain-English intent tests offered through the 50-engineer Agentic Platform team’s shared infrastructure, accepting less per-test customization to avoid maintaining their own browser, identity, and model integration.

Basis

Epsilon turned to Amazon Nova Act because it needed UI testing that could keep pace with rapid application changes without creating maintenance overhead for every product team. Within Epsilon, the Agentic Platform team (50 engineers) builds shared infrastructure so other product teams can build, deploy, govern, and run AI agents safely. The platform provides a skills-based agent builder, federated identity and pre-flight authorization, MCP integration, and cross-account provisioning; product teams adopting AI tooling get capabilities without additional configuration and without re-solving identity, security, browser infrastructure, or model integration. UI testing is one managed capability delivered with Nova Act. The mechanism is centralization: Nova Act supplies intent-driven UI testing, while the platform absorbs the surrounding browser, identity, and model-integration work, so product teams do not each maintain a script suite. The cost is control: plain-English intent tests abstract away the script-level steps and selector-level tuning that script-based UI suites give teams.