Menu

The PEAS Framework

The PEAS Framework

What Is PEAS?

PEAS is a framework used to describe the task environment of an intelligent agent.

PEAS stands for:

  • P — Performance Measure: How the agent's success is evaluated.
  • E — Environment: The surroundings in which the agent operates.
  • A — Actuators: The mechanisms through which it performs actions.
  • S — Sensors: The mechanisms through which it receives information.

Using PEAS helps developers define what an agent must achieve before deciding how to build it.

Example 1: Autonomous Vehicle

PEAS Component

Description

Performance MeasureSafety, legal compliance, travel time, passenger comfort
EnvironmentRoads, traffic, pedestrians, weather, road signs
ActuatorsSteering, brakes, accelerator, indicators
SensorsCameras, radar, lidar, GPS, vehicle sensors

The performance measure should consider several objectives. Reaching a destination quickly is not sufficient if the vehicle ignores road safety.

Example 2: Customer-Support Agent

PEAS Component

Description

Performance MeasureResponse quality, resolution rate, accuracy, customer satisfaction
EnvironmentCustomer conversations, support policies, knowledge base
ActuatorsSending replies, creating tickets, escalating requests
SensorsUser messages, account data, ticket status, available documentation

This framework helps identify the information the agent needs and the actions it is allowed to perform.

Example 3: Robot Vacuum Cleaner

PEAS Component

Description

Performance MeasureCleaning coverage, time, energy consumption, collision avoidance
EnvironmentRooms, floors, furniture, people, pets
ActuatorsWheels, brushes, suction motor
SensorsBump sensors, cameras, distance sensors, dirt sensors

How to Create a PEAS Description

Follow these steps:

  1. Identify the task the agent must perform.
  2. Define measurable indicators of success.
  3. Describe the environment and its constraints.
  4. List the actions available to the agent.
  5. Identify the information sources it needs.

Practical Exercise

Create a PEAS description for an AI-based traffic management system.

Consider:

  • How should traffic flow be measured?
  • What conditions exist in the environment?
  • What actions can the system take?
  • What data must it collect?

Possible inputs include traffic-camera feeds, vehicle counts, and signal status. Possible actions include changing traffic-light timings or recommending alternative routes, subject to applicable safety rules and operational permissions.


Artificial Intelligence Tutorial

VA

Vishalini A



Learn via Video Course

Artificial Intelligence and Machine Learning Course Logo

Artificial Intelligence and Machine Learning Course

55 hrs



Get in Touch For Details