Introduction:In this lab exercise, you will practice drawing sequence diagrams based on given scenarios.Sequence diagrams are used to visualize the interactions between different components or actorsin a system over time. You will be provided with two scenarios, and your task is to drawsequence diagrams for each scenario following the provided instructions.Instructions:Read each scenario carefully.Identify the actors or components involved in the scenario.Determine the sequence of actions or events that occur between the actors or components.Draw the sequence diagram based on the identified interactions.Ensure clarity and correctness in your diagrams.Scenario $1$: Remote Temperature ControlActors: User $,$ Smartphone App, Smart Home Hub, Smart ThermostatScenario: User opens the Smartphone App to adjust the temperature remotely. Smartphone App sends a request to the Smart Home Hub. Smart Home Hub forwards the request to the Smart Thermostat. Smart Thermostat checks if the requested temperature is within acceptable limits$.$ If the requested temperature is within limits$,$ the Smart Thermostat adjusts thetemperature settings accordingly. If the requested temperature is outside acceptable limits$,$ the Smart Thermostat sends anerror response to the Smart Home Hub. Smart Home Hub updates the status on the Smartphone App. User decides whether to retry adjusting the temperature or cancel. If the User retries, the scenario loops back to step $2.$ If the User cancels, the scenario ends.Instructions: Draw a sequence diagram illustrating the interactions between the actors$/$componentsinvolved in the Remote Temperature Control scenario. Include alternative paths, optional parts, and loops as described in the scenario.Scenario $2$: Automated Lighting ControlActors: User, Motion Sensor, Smart Home Hub, Smart LightsScenario: User enters a room with Smart Lights installed. Motion Sensor detects movement. Motion Sensor sends a signal to the Smart Home Hub. Smart Home Hub checks if it's nighttime. If it's nighttime, Smart Home Hub turns on the Smart Lights. User leaves the room. Motion Sensor detects no movement. Motion Sensor sends a signal to the Smart Home Hub. Smart Home Hub turns off the Smart Lights.Instructions:Draw a sequence diagram illustrating the interactions between the actors$/$components involved inthe Automated Lighting Control scenario.Ensure that the sequence of actions is accurate, including the conditions for turning on$/$off thelights based on motion detection and nighttime.