diff --git a/content/models/webtool/Diagrams.md b/content/models/webtool/Diagrams.md
new file mode 100644
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+## Relações entre AnnotationObjects
+```mermaid
+flowchart TB
+	sentence -- rel_sentence_time --> time
+	sentence -- rel_sentence_textspan --> textspan
+	document -- rel_document_sentence --> sentence
+	document -- rel_document_video --> video
+	document -- rel_document_image --> image
+	video -- rel_video_sentence --> sentence
+	video -- rel_video_dynobj --> dynamic_object
+	dynamic_object -- rel_dynobj_bbox --> bounding_box
+	static_object -- rel_staobj_bbox --> bounding_box
+	image --> rel_image_staobj --> static_object
+	image -- rel_image_sentence --> sentence
+
+```
diff --git a/content/models/webtool/webtool-4.0.md b/content/models/webtool/webtool-4.0.md
index 970e224..cdd8d42 100644
--- a/content/models/webtool/webtool-4.0.md
+++ b/content/models/webtool/webtool-4.0.md
@@ -1,5 +1,6 @@
 # webtool-4.0
 
+[[Diagrams]]
 
 ## Nova estrutura para projetos