diff --git a/backend/internal/database/db.go b/backend/internal/database/db.go
index 68dcf13..84937f1 100644
--- a/backend/internal/database/db.go
+++ b/backend/internal/database/db.go
@@ -18,6 +18,9 @@ type Database interface {
 	GetUserId(username string) (int, error)
 	AddProject(name string, description string, username string) error
 	Migrate(dirname string) error
+	// AddTimeReport(projectname string, start time.Time, end time.Time) error
+	// AddUserToProject(username string, projectname string) error
+	// ChangeUserRole(username string, projectname string, role string) error
 }
 
 // This struct is a wrapper type that holds the database connection
@@ -33,6 +36,10 @@ const userInsert = "INSERT INTO users (username, password) VALUES (?, ?)"
 const projectInsert = "INSERT INTO projects (name, description, user_id) SELECT ?, ?, id FROM users WHERE username = ?"
 const promoteToAdmin = "INSERT INTO site_admin (admin_id) SELECT id FROM users WHERE username = ?"
 
+// const addTimeReport = ""
+// const addUserToProject = ""
+// const changeUserRole = ""
+
 // DbConnect connects to the database
 func DbConnect(dbpath string) Database {
 	// Open the database
@@ -50,6 +57,18 @@ func DbConnect(dbpath string) Database {
 	return &Db{db}
 }
 
+// func (d *Db) AddTimeReport(projectname string, start time.Time, end time.Time) error {
+
+// }
+
+// func (d *Db) AddUserToProject(username string, projectname string) error {
+
+// }
+
+// func (d *Db) ChangeUserRole(username string, projectname string, role string) error {
+
+// }
+
 // AddUser adds a user to the database
 func (d *Db) AddUser(username string, password string) error {
 	_, err := d.Exec(userInsert, username, password)
diff --git a/backend/internal/database/db_test.go b/backend/internal/database/db_test.go
index 7c7c003..96eb9b7 100644
--- a/backend/internal/database/db_test.go
+++ b/backend/internal/database/db_test.go
@@ -91,3 +91,15 @@ func TestPromoteToAdmin(t *testing.T) {
 		t.Error("PromoteToAdmin failed:", err)
 	}
 }
+
+// func TestAddTimeReport(t *testing.T) {
+
+// }
+
+// func TestAddUserToProject(t *testing.T) {
+
+// }
+
+// func TestChangeUserRole(t *testing.T) {
+
+// }