diff --git a/models/common/models/inoutputs.go b/models/common/models/inoutputs.go
index cf66b07..f9f4d28 100644
--- a/models/common/models/inoutputs.go
+++ b/models/common/models/inoutputs.go
@@ -1,14 +1,16 @@
 package models
 
 type Artifact struct {
-	Name string `json:"name" bson:"name" validate:"required"`
-	Path string `json:"value,omitempty" bson:"value,omitempty"`
-	From string `json:"from,omitempty" bson:"from,omitempty"`
+	Name     string `json:"name" bson:"name" validate:"required"`
+	Path     string `json:"value,omitempty" bson:"value,omitempty"`
+	From     string `json:"from,omitempty" bson:"from,omitempty"`
+	Readonly bool   `json:"readonly,omitempty" bson:"readonly,omitempty"`
 }
 
 type Param struct {
-	Name  string `json:"name" bson:"name" validate:"required"`
-	Value string `json:"value,omitempty" bson:"value,omitempty"`
+	Name     string `json:"name" bson:"name" validate:"required"`
+	Value    string `json:"value,omitempty" bson:"value,omitempty"`
+	Readonly bool   `json:"readonly,omitempty" bson:"readonly,omitempty"`
 }
 type InOutputs struct {
 	Params    []Param    `json:"parameters" bson:"parameters"`