diff --git a/src/main/java/object/example/bobbymoney/AiSoftware.java b/src/main/java/object/example/bobbymoney/AiSoftware.java
new file mode 100644
index 0000000..ccbc7c7
--- /dev/null
+++ b/src/main/java/object/example/bobbymoney/AiSoftware.java
@@ -0,0 +1,86 @@
+package object.example.bobbymoney;
+
+public class AiSoftware {
+    private String aiName;
+    private String coachType;
+    private String teachingStyle;
+    private double minimumTimeSpent;
+    private String timeFrame;
+
+    public AiSoftware(String aiName, String coachType, String teachingStyle,
+                      double minimumTimeSpent, String timeFrame) {
+        if (minimumTimeSpent < 0.5) {
+            throw new IllegalArgumentException("Minimum time spent must be at least 0.5 hours (30 minutes).");
+        }
+        this.aiName = aiName;
+        this.coachType = coachType;
+        this.teachingStyle = teachingStyle;
+        this.minimumTimeSpent = minimumTimeSpent;
+        this.timeFrame = timeFrame;
+    }
+
+    public String getAiName()
+    {
+        return aiName; }
+
+
+    public String getCoachType()
+    {
+        return coachType; }
+
+
+    public String getTeachingStyle()
+    {
+        return teachingStyle; }
+
+
+    public double getMinimumTimeSpent()
+    {
+        return minimumTimeSpent; }
+
+
+    public String getTimeFrame()
+    {
+        return timeFrame; }
+
+    public void setAiName(String aiName)
+    { this.aiName = aiName; }
+
+
+    public void setCoachType(String coachType)
+    {
+        this.coachType = coachType;
+    }
+
+
+    public void setTeachingStyle(String teachingStyle)
+    {
+        this.teachingStyle = teachingStyle;
+    }
+
+
+    public void setTimeFrame(String timeFrame)
+    {
+        this.timeFrame = timeFrame;
+    }
+
+
+    public void setMinimumTimeSpent(double minimumTimeSpent) {
+        if (minimumTimeSpent < 0.5) {
+            throw new IllegalArgumentException("Minimum time spent must be at least 0.5 hours (30 minutes).");
+        }
+        this.minimumTimeSpent = minimumTimeSpent;
+    }
+
+    public String getSummary() {
+        return aiName + " is a " + coachType + " coach using the "
+                + teachingStyle + " method for " + timeFrame + ".";
+    }
+
+    public double calculateTotalHours(int sessions) {
+        if (sessions <= 0) {
+            throw new IllegalArgumentException("Sessions must be greater than zero.");
+        }
+        return minimumTimeSpent * sessions;
+    }
+}
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diff --git a/src/test/java/object/example/bobbymoney/AiSoftwareTest.java b/src/test/java/object/example/bobbymoney/AiSoftwareTest.java
new file mode 100644
index 0000000..b72c173
--- /dev/null
+++ b/src/test/java/object/example/bobbymoney/AiSoftwareTest.java
@@ -0,0 +1,97 @@
+package object.example.bobbymoney;
+
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.*;
+
+class AiSoftwareTest {
+
+    @Test
+    public void constructorShouldSetAllFields() {
+        AiSoftware aiSoftware = new AiSoftware("Bucky", "Guitar", "Pomodoro", 1.0, "2 weeks");
+        assertEquals("Bucky",    aiSoftware.getAiName());
+        assertEquals("Guitar",   aiSoftware.getCoachType());
+        assertEquals("Pomodoro", aiSoftware.getTeachingStyle());
+        assertEquals(1.0,        aiSoftware.getMinimumTimeSpent());
+        assertEquals("2 weeks",  aiSoftware.getTimeFrame());
+    }
+
+    @Test
+    public void constructorShouldThrowWhenMinimumTimeSpentIsBelowHalfHour() {
+        assertThrows(IllegalArgumentException.class, () ->
+                new AiSoftware("Bucky", "Guitar", "Pomodoro", 0.25, "2 weeks")
+        );
+    }
+
+    @Test
+    public void setAiNameShouldUpdateAiName() {
+        AiSoftware aiSoftware = new AiSoftware("Bucky", "Guitar", "Pomodoro", 1.0, "2 weeks");
+        aiSoftware.setAiName("Nova");
+        assertEquals("Nova", aiSoftware.getAiName());
+    }
+
+    @Test
+    public void setCoachTypeShouldUpdateCoachType() {
+        AiSoftware aiSoftware = new AiSoftware("Bucky", "Guitar", "Pomodoro", 1.0, "2 weeks");
+        aiSoftware.setCoachType("Piano");
+        assertEquals("Piano", aiSoftware.getCoachType());
+    }
+
+    @Test
+    public void setTeachingStyleShouldUpdateTeachingStyle() {
+        AiSoftware aiSoftware = new AiSoftware("Bucky", "Guitar", "Pomodoro", 1.0, "2 weeks");
+        aiSoftware.setTeachingStyle("Spaced Repetition");
+        assertEquals("Spaced Repetition", aiSoftware.getTeachingStyle());
+    }
+
+    @Test
+    public void setMinimumTimeSpentShouldUpdateValue() {
+        AiSoftware aiSoftware = new AiSoftware("Bucky", "Guitar", "Pomodoro", 1.0, "2 weeks");
+        aiSoftware.setMinimumTimeSpent(2.0);
+        assertEquals(2.0, aiSoftware.getMinimumTimeSpent());
+    }
+
+    @Test
+    public void setMinimumTimeSpentShouldThrowWhenBelowHalfHour() {
+        AiSoftware aiSoftware = new AiSoftware("Bucky", "Guitar", "Pomodoro", 1.0, "2 weeks");
+        assertThrows(IllegalArgumentException.class, () ->
+                aiSoftware.setMinimumTimeSpent(0.1)
+        );
+    }
+
+    @Test
+    public void setTimeFrameShouldUpdateTimeFrame() {
+        AiSoftware aiSoftware = new AiSoftware("Bucky", "Guitar", "Pomodoro", 1.0, "2 weeks");
+        aiSoftware.setTimeFrame("1 month");
+        assertEquals("1 month", aiSoftware.getTimeFrame());
+    }
+
+    @Test
+    public void getSummaryShouldReturnFormattedString() {
+        AiSoftware aiSoftware = new AiSoftware("Bucky", "Guitar", "Pomodoro", 1.0, "2 weeks");
+        String result = aiSoftware.getSummary();
+        assertEquals("Bucky is a Guitar coach using the Pomodoro method for 2 weeks.", result);
+    }
+
+    @Test
+    public void calculateTotalHoursShouldReturnCorrectTotal() {
+        AiSoftware aiSoftware = new AiSoftware("Bucky", "Guitar", "Pomodoro", 1.0, "2 weeks");
+        double total = aiSoftware.calculateTotalHours(5);
+        assertEquals(5.0, total);
+    }
+
+    @Test
+    public void calculateTotalHoursShouldThrowWhenSessionsIsZero() {
+        AiSoftware aiSoftware = new AiSoftware("Bucky", "Guitar", "Pomodoro", 1.0, "2 weeks");
+        assertThrows(IllegalArgumentException.class, () ->
+                aiSoftware.calculateTotalHours(0)
+        );
+    }
+
+    @Test
+    public void calculateTotalHoursShouldThrowWhenSessionsIsNegative() {
+        AiSoftware aiSoftware = new AiSoftware("Bucky", "Guitar", "Pomodoro", 1.0, "2 weeks");
+        assertThrows(IllegalArgumentException.class, () ->
+                aiSoftware.calculateTotalHours(-3)
+        );
+    }
+}
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