Assume that all the hardware components are available and you only need to develop a software system that controls the hardware components.Identify the actors for the system and their goalsDerive only the use cases relevant to the system objective and write brief or casual text description of eachDraw the use case diagram for the systemFor the use case that deals with the remote-controlled garage door opening, write a fully dressed descriptionDraw the system sequence diagram(s) for the use case selected in (d)Show the operation contracts for the operations of the use case selected in (d) # Software System for Motion Detection and Garage Door Control## OverviewYou are hired to develop a software system for motion detection and garage door control. The system should turn the garage door lights on automatically when it detects motion within a given perimeter. The garage door opener should be controllable either by a remote radio transmitter or by a manual button switch.### Safety FeaturesThe opener should include the following safety feature:- An “electric eye” sensor projects invisible infrared light beams to detect if someone or something passes under the garage door while it closes. If the beam is obstructed while the door is going down, the door should not close—the system should automatically stop and reverse the door movement.## Hardware ComponentsThe relevant hardware parts of the system are as follows (see Figure):1. **Motion Detector**: Detects movement in the specified area.2. **External Light Bulb**: Lights up when motion is detected.3. **Motor for Moving the Garage Door**: Powers the opening and closing of the door.4. **“Electric Eye” Sensor**: Provides safety by detecting obstructions.5. **Remote Control Radio Transmitter and Receiver**: Allows remote operation of the garage door.6. **Manual Opener Button Switch**: For manual operation.## Diagram ExplanationThe diagram shows a house with an attached garage:- On the left: - The **external light** is connected to a **motion detector** with a defined detection perimeter. - On the right: - The **garage door** has an **electric eye** sensor positioned to monitor the space under the door. - A **remote receiver** is connected to a **manual opener switch** and a **motor**, enabling both remote and manual control.This system enhances convenience and safety by automating light control and preventing accidents through obstruction detection.

Answer: We have explain first three subpart because our instruction is answer the first three subpart so we have explain brief explanation.(1).Answer: Actor of the system Visitor Garage Goal of Visitor when visitor can visit the garbage without any problem and door allow to the go inside and close the door without or nobody can enter the garage Goal of Garage Garage system can easily work using the sensing the door and open the door based on the given instruction etc. (2).Answer: Relevant use case can be Motion detection :when any human comes to nearer to the door then it takes action based it goes outside or inside Remote Sensor: Visitor can open the door using the remote sensing Manual Service: when sensor does not work due to any problem then manually can open the door Electric Bulb: it is used as the indicator when system instruct it Eye sensor: it is sensing when close the door then for opening the door and when open the door for closing (3).Answer: