diff --git a/lib/archive.js b/lib/archive.js
new file mode 100644
index 0000000..feed2fa
--- /dev/null
+++ b/lib/archive.js
@@ -0,0 +1,27 @@
+// archive.js
+
+var ArchiveObject = function() {
+    this.engine = "HOW_TO_COMPRESS_AND_DECOMPRES_A_FILE
+  
+    this.create = function(engine) {
+        this.engine = engine;
+    }
+
+    this.extractTo = function(targetDirectory) {
+        if (this.engine == "METHOD_1") {
+            // how to extract a file with METHOD_1
+        } else (this.engine == "METHOD_2") {
+            // how to extract a file with METHOD_2
+        } // ...
+    }
+
+    this.compressDirectory = function(sourceDirectory) {
+        if (this.engine == "METHOD_1") {
+            // how to compress a file with METHOD_1
+        } else (this.engine == "METHOD_2") {
+            // how to compress a file with METHOD_2
+        } // ...
+    }
+
+    // A good practice is lib/http.js
+}