diff --git a/DATA/build.gradle b/DATA/build.gradle
deleted file mode 100644
index 09b82e8..0000000
--- a/DATA/build.gradle
+++ /dev/null
@@ -1,4 +0,0 @@
-group "org.tbasket.api"
-
-dependencies {
-}
diff --git a/DB/build.gradle b/DB/build.gradle
index 352cd55..2f7f270 100644
--- a/DB/build.gradle
+++ b/DB/build.gradle
@@ -2,5 +2,4 @@ group "org.tbasket.api"
 
 dependencies {
     implementation 'io.getquill:quill_2.12:3.2.0'
-    api project(':DATA')
 }
diff --git a/DATA/datastructure.drawio b/DB/datastructure.drawio
similarity index 100%
rename from DATA/datastructure.drawio
rename to DB/datastructure.drawio
diff --git a/DB/src/main/scala/Database.scala b/DB/src/main/scala/Database.scala
deleted file mode 100644
index bf0494e..0000000
--- a/DB/src/main/scala/Database.scala
+++ /dev/null
@@ -1,3 +0,0 @@
-class Database {
-
-}
diff --git a/DB/src/main/scala/org/tbasket/data/Group.scala b/DB/src/main/scala/org/tbasket/data/Group.scala
new file mode 100644
index 0000000..e3bf87a
--- /dev/null
+++ b/DB/src/main/scala/org/tbasket/data/Group.scala
@@ -0,0 +1,3 @@
+package org.tbasket.data
+
+case class Group(identifier: Int, name: String, clubName: String)
\ No newline at end of file
diff --git a/DB/src/main/scala/org/tbasket/data/Member.scala b/DB/src/main/scala/org/tbasket/data/Member.scala
new file mode 100644
index 0000000..4c441cd
--- /dev/null
+++ b/DB/src/main/scala/org/tbasket/data/Member.scala
@@ -0,0 +1,3 @@
+package org.tbasket.data
+
+case class Member(group: Group, )
\ No newline at end of file
diff --git a/DB/src/main/scala/org/tbasket/data/User.scala b/DB/src/main/scala/org/tbasket/data/User.scala
new file mode 100644
index 0000000..b4ea6d4
--- /dev/null
+++ b/DB/src/main/scala/org/tbasket/data/User.scala
@@ -0,0 +1,3 @@
+package org.tbasket.data
+
+case class User(id: Int, name: String, forename: String)
\ No newline at end of file
diff --git a/settings.gradle b/settings.gradle
index 3323a3e..a490aca 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -1,5 +1,4 @@
 rootProject.name = 'Tactique-Basket-Backend'
 include 'DB'
 include 'API'
-include 'DATA'