diff --git a/scripts/database/entry/activity.JS b/scripts/database/entry/activity.JS
new file mode 100644
index 0000000..477a6dd
--- /dev/null
+++ b/scripts/database/entry/activity.JS
@@ -0,0 +1,14 @@
+const Entry = require(`./object.JS`);
+
+class Activity extends Entry {
+    username;
+    description;
+    duration;
+    date;
+
+    constructor(PROPERTIES) {
+        super(PROPERTIES);
+    };
+}
+
+module.exports = Activity;
\ No newline at end of file
diff --git a/scripts/database/entry/object.JS b/scripts/database/entry/object.JS
new file mode 100644
index 0000000..6b2169b
--- /dev/null
+++ b/scripts/database/entry/object.JS
@@ -0,0 +1,10 @@
+/* An object to represent an entry in the database. */
+class Entry {
+    constructor(PROPERTIES) {
+        (PROPERTIES) ? Object.entries(PROPERTIES).forEach(([property, value]) => {
+            this[property] = value;
+        }) : false;
+    };
+};
+
+module.exports = Entry;
\ No newline at end of file
diff --git a/scripts/database/entry/user.JS b/scripts/database/entry/user.JS
new file mode 100644
index 0000000..899078e
--- /dev/null
+++ b/scripts/database/entry/user.JS
@@ -0,0 +1,55 @@
+const Entry = require(`./object`);
+const Hash = require(`../../utilities/hash`);
+
+class User extends Entry {
+    // Default properties
+    name;
+    ID;
+    activated = false;
+    passcode;
+    #login = false;
+
+    constructor(PROPERTIES) {
+        super(PROPERTIES);
+        this.authenticate();
+    };
+
+    /* Authenticate the user 
+    
+    @param {STRING} INPUT the passcode passed
+    @return {BOOLEAN} the user authentication state
+    */
+    authenticate(INPUT) {
+        // Reset the login state. 
+        if (this.#login) {this.#login = false;};
+
+        if ((this.passcode) ? (INPUT && this.passcode == INPUT) : true) {
+            this.#login = true;
+        }
+        return (this.#login);
+    }
+
+    /* 
+    Generate a schema for MongoDB. 
+
+    @return {OBJECT} the schema
+    */
+    static generateTemplate() {
+        let SCHEMA = {
+            "name": {"type": String, "required": true, "unique": true, "dropDups": true},
+            "ID": {"type": String, "required": true, "unique": true, "dropDups": true},
+            "activated": {"type": Boolean},
+            "passcode": {"type": String}
+        }
+        let TEST = new User();
+
+        // Verify that the schema is valid.
+        Object.keys(SCHEMA).forEach((KEY) => {
+            if (!Object.keys(TEST).includes(KEY)) {delete SCHEMA[KEY];};
+        });
+
+        return (SCHEMA)
+    }
+}
+
+module.exports = User;
\ No newline at end of file