diff --git a/sdks/scheduler/app_models.go b/sdks/scheduler/app_models.go
new file mode 100644
index 0000000..77d5c97
--- /dev/null
+++ b/sdks/scheduler/app_models.go
@@ -0,0 +1,41 @@
+package schsdk
+
+import (
+	"gitlink.org.cn/cloudream/common/pkgs/types"
+	"gitlink.org.cn/cloudream/common/utils/serder"
+)
+
+type AppInfo interface {
+	GetAppID() string
+}
+
+var AppInfoTypeUnion = types.NewTypeUnion[AppInfo](
+	(*FederatedLearningAppInfo)(nil),
+	(*OtherAppInfo)(nil),
+)
+
+var _ = serder.UseTypeUnionInternallyTagged(&JobInfoTypeUnion, "type")
+
+type AppInfoBase struct {
+	ID string `json:"id"`
+}
+
+func (i *AppInfoBase) GetAppID() string {
+	return i.ID
+}
+
+type FederatedLearningAppInfo struct {
+	serder.Metadata `union:"federatedLearning"`
+	AppInfoBase
+	Type        string `json:"type"`
+	Name        string `json:"name"`
+	Description string `json:"description"`
+}
+
+type OtherAppInfo struct {
+	serder.Metadata `union:"other"`
+	AppInfoBase
+	Type        string `json:"type"`
+	Name        string `json:"name"`
+	Description string `json:"description"`
+}