Add application graph

diff --git a/graph.dot b/graph.dot
new file mode 100644
index 0000000..0eb40f0
--- /dev/null
+++ b/graph.dot
@@ -0,0 +1,76 @@
+digraph G {
+	subgraph cluster_Blog {
+		graph [label=Application];
+		u28		 [color="#ccffcc",
+			label=Plugins,
+			style=filled];
+		u26		 [color="#ccffcc",
+			label=Models,
+			style=filled];
+		u0		 [color="#ccffcc",
+			label=Main,
+			style=filled];
+	}
+	subgraph cluster_DB {
+		graph [label=DB];
+		u15		 [color="#99ff99",
+			label=SQL,
+			style=filled];
+		u10		 [color="#99ff99",
+			label=Models,
+			style=filled];
+		u9		 [color="#99ff99",
+			label=Storage,
+			style=filled];
+	}
+	forms	 [color="#66ff66",
+		label=Forms,
+		shape=box,
+		style=filled];
+	u28 -> forms;
+	u27	 [color="#99ff99",
+		label=Markdown,
+		style=filled];
+	u26 -> u27;
+	u26 -> forms;
+	u24	 [color="#99ff99",
+		label=Pager,
+		style=filled];
+	u0 -> u24;
+	tengine	 [color="#66ff66",
+		label=TEngine,
+		shape=box,
+		style=filled];
+	u0 -> tengine;
+	u24 -> forms;
+	u15 -> u10;
+	u9 -> u10;
+	u4	 [color="#99ff99",
+		label=Pool,
+		style=filled];
+	u9 -> u4;
+	u11	 [color="#99ff99",
+		label=Urls,
+		style=filled];
+	http	 [color="#99cc99",
+		label=Http,
+		shape=box,
+		style=filled];
+	u11 -> http;
+	u5	 [color="#99ff99",
+		label=API,
+		style=filled];
+	u5 -> u15;
+	u5 -> u11;
+	http -> u9;
+	http -> u11;
+	cache	 [color="#66ff66",
+		label=Cache,
+		shape=box,
+		style=filled];
+	http -> cache;
+	forms -> u28;
+	forms -> u5;
+	tengine -> u26;
+	cache -> u4;
+}