diff --git a/SimpleActivityStack/src/testat/IAction.java b/SimpleActivityStack/src/testat/IAction.java
new file mode 100644
index 0000000..19b0b64
--- /dev/null
+++ b/SimpleActivityStack/src/testat/IAction.java
@@ -0,0 +1,11 @@
+package testat;
+
+/**
+ * 
+ * @author cm 
+ *
+ * @param <E>
+ */
+public interface IAction<E> {
+	public void execute(E e);
+}
diff --git a/SimpleActivityStack/src/testat/SimpleActivity.java b/SimpleActivityStack/src/testat/SimpleActivity.java
new file mode 100644
index 0000000..9fdc945
--- /dev/null
+++ b/SimpleActivityStack/src/testat/SimpleActivity.java
@@ -0,0 +1,56 @@
+package testat;
+
+/**
+ * 
+ * @author cm
+ *
+ */
+public class SimpleActivity {
+
+	private String desc;
+	private String name;
+	private boolean isActive;
+
+	public SimpleActivity(String name, String desc, boolean activityState) {
+		this.name = name;
+		this.setDesc(desc);
+		this.setActive(activityState);
+	}
+
+	public SimpleActivity(String name) {
+		this.name = name;
+		this.setActive(true);
+	}
+
+	public void activate() {
+		this.setActive(true);
+	}
+
+	public void destroy() {
+		System.out.println(this.name + " is destroyed");
+	}
+
+	public void passivate() {
+		this.setActive(false);
+	}
+
+	public boolean isActive() {
+		return isActive;
+	}
+
+	public void setActive(boolean isActive) {
+		this.isActive = isActive;
+	}
+
+	public String getDesc() {
+		return desc;
+	}
+
+	public void setDesc(String desc) {
+		this.desc = desc;
+	}
+
+	public String getName() {
+		return name;
+	}
+}