diff --git a/consts/consts.go b/consts/consts.go
index 55eefec..dd9f224 100644
--- a/consts/consts.go
+++ b/consts/consts.go
@@ -1,31 +1,26 @@
 package consts
 
 const (
-	REDUNDANCY_REP = "rep"
-	REDUNDANCY_EC  = "ec"
-)
-
-const (
-	IPFS_STATE_OK = "OK"
+	IPFSStateOK = "OK"
 
-	STORAGE_DIRECTORY_STATE_OK = "OK"
+	StorageDirectoryStateOK = "OK"
 
-	NODE_STATE_NORMAL      = "Normal"
-	NODE_STATE_UNAVAILABLE = "Unavailable"
+	NodeStateNormal      = "Normal"
+	NodeStateUnavailable = "Unavailable"
 )
 
 const (
-	OBJECT_STATE_NORMAL  = "Normal"
-	OBJECT_STATE_DELETED = "Deleted"
+	ObjectStateNormal  = "Normal"
+	ObjectStateDeleted = "Deleted"
 )
 
 const (
-	STORAGE_OBJECT_STATE_NORMAL   = "Normal"
-	STORAGE_OBJECT_STATE_DELETED  = "Deleted"
-	STORAGE_OBJECT_STATE_OUTDATED = "Outdated"
+	StorageObjectStateNormal   = "Normal"
+	StorageObjectStateDeleted  = "Deleted"
+	StorageObjectStateOutdated = "Outdated"
 )
 
 const (
-	CACHE_STATE_PINNED = "Pinned"
-	CACHE_STATE_TEMP   = "Temp"
+	CacheStatePinned = "Pinned"
+	CacheStateTemp   = "Temp"
 )
diff --git a/consts/errorcode/error_code.go b/consts/errorcode/error_code.go
index 2855c9a..4c7bc59 100644
--- a/consts/errorcode/error_code.go
+++ b/consts/errorcode/error_code.go
@@ -1,8 +1,8 @@
 package errorcode
 
 const (
-	OK               = "OK"
-	OPERATION_FAILED = "OPERATION_FAILED"
-
-	TASK_NOT_FOUND = "TASK_NOT_FOUND"
+	OK              = "OK"
+	OperationFailed = "OperationFailed"
+	BadArgument     = "BadArgument"
+	TaskNotFound    = "TaskNotFound"
 )
diff --git a/models/models.go b/models/models.go
new file mode 100644
index 0000000..10d8a61
--- /dev/null
+++ b/models/models.go
@@ -0,0 +1,55 @@
+package models
+
+/// TODO 将分散在各处的公共结构体定义集中到这里来
+
+const (
+	RedundancyRep = "rep"
+	RedundancyEC  = "ec"
+)
+
+type RedundancyConfigTypes interface{}
+type RedundancyConfigTypesConst interface {
+	RepRedundancyConfig | ECRedundancyConfig
+}
+type RepRedundancyConfig struct {
+	RepCount int `json:"repCount"`
+}
+
+type ECRedundancyConfig struct {
+}
+
+type RedundancyDataTypes interface{}
+type RedundancyDataTypesConst interface {
+	RepRedundancyData | ECRedundancyData
+}
+type RepRedundancyData struct {
+	FileHash string `json:"fileHash"`
+}
+
+func NewRedundancyRepData(fileHash string) RepRedundancyData {
+	return RepRedundancyData{
+		FileHash: fileHash,
+	}
+}
+
+type ECRedundancyData struct {
+	Blocks []ObjectBlock `json:"blocks"`
+}
+
+func NewECRedundancyData(blocks []ObjectBlock) ECRedundancyData {
+	return ECRedundancyData{
+		Blocks: blocks,
+	}
+}
+
+type ObjectBlock struct {
+	Index    int    `json:"index"`
+	FileHash string `json:"fileHash"`
+}
+
+func NewObjectBlock(index int, fileHash string) ObjectBlock {
+	return ObjectBlock{
+		Index:    index,
+		FileHash: fileHash,
+	}
+}