Revise method name
diff --git a/shardingsphere-ui-backend/src/main/java/org/apache/shardingsphere/ui/servcie/impl/ConfigCenterServiceImpl.java b/shardingsphere-ui-backend/src/main/java/org/apache/shardingsphere/ui/servcie/impl/ConfigCenterServiceImpl.java
index f166be2..ac677ce 100644
--- a/shardingsphere-ui-backend/src/main/java/org/apache/shardingsphere/ui/servcie/impl/ConfigCenterServiceImpl.java
+++ b/shardingsphere-ui-backend/src/main/java/org/apache/shardingsphere/ui/servcie/impl/ConfigCenterServiceImpl.java
@@ -43,7 +43,7 @@
     public ConfigurationRepository getActivatedConfigCenter() {
         Optional<CenterConfig> optional = centerConfigService.loadActivated(OrchestrationType.CONFIG_CENTER.getValue());
         if (optional.isPresent()) {
-            return CenterRepositoryFactory.createConfigCenter(optional.get());
+            return CenterRepositoryFactory.createConfigurationRepository(optional.get());
         }
         throw new ShardingSphereUIException(ShardingSphereUIException.SERVER_ERROR, "No activated config center!");
     }
diff --git a/shardingsphere-ui-backend/src/main/java/org/apache/shardingsphere/ui/servcie/impl/RegistryCenterServiceImpl.java b/shardingsphere-ui-backend/src/main/java/org/apache/shardingsphere/ui/servcie/impl/RegistryCenterServiceImpl.java
index 588bc91..017e1b7 100644
--- a/shardingsphere-ui-backend/src/main/java/org/apache/shardingsphere/ui/servcie/impl/RegistryCenterServiceImpl.java
+++ b/shardingsphere-ui-backend/src/main/java/org/apache/shardingsphere/ui/servcie/impl/RegistryCenterServiceImpl.java
@@ -43,7 +43,7 @@
     public RegistryRepository getActivatedRegistryCenter() {
         Optional<CenterConfig> optional = centerConfigService.loadActivated(OrchestrationType.REGISTRY_CENTER.getValue());
         if (optional.isPresent()) {
-            return CenterRepositoryFactory.createRegistryCenter(optional.get());
+            return CenterRepositoryFactory.createRegistryRepository(optional.get());
         }
         throw new ShardingSphereUIException(ShardingSphereUIException.SERVER_ERROR, "No activated registry center!");
     }
diff --git a/shardingsphere-ui-backend/src/main/java/org/apache/shardingsphere/ui/util/CenterRepositoryFactory.java b/shardingsphere-ui-backend/src/main/java/org/apache/shardingsphere/ui/util/CenterRepositoryFactory.java
index 4f79ca6..788b1da 100644
--- a/shardingsphere-ui-backend/src/main/java/org/apache/shardingsphere/ui/util/CenterRepositoryFactory.java
+++ b/shardingsphere-ui-backend/src/main/java/org/apache/shardingsphere/ui/util/CenterRepositoryFactory.java
@@ -36,18 +36,18 @@
 @NoArgsConstructor(access = AccessLevel.PRIVATE)
 public final class CenterRepositoryFactory {
     
-    private static final ConcurrentHashMap<String, RegistryRepository> REGISTRY_CENTER_MAP = new ConcurrentHashMap<>();
+    private static final ConcurrentHashMap<String, RegistryRepository> REGISTRY_REPOSITORY_MAP = new ConcurrentHashMap<>();
     
-    private static final ConcurrentHashMap<String, ConfigurationRepository> CONFIG_CENTER_MAP = new ConcurrentHashMap<>();
+    private static final ConcurrentHashMap<String, ConfigurationRepository> CONFIG_REPOSITORY_MAP = new ConcurrentHashMap<>();
     
     /**
-     * Create registry center instance.
+     * Create registry repository.
      *
-     * @param config registry center config
-     * @return registry center
+     * @param config center config
+     * @return registry repository
      */
-    public static RegistryRepository createRegistryCenter(final CenterConfig config) {
-        RegistryRepository result = REGISTRY_CENTER_MAP.get(config.getName());
+    public static RegistryRepository createRegistryRepository(final CenterConfig config) {
+        RegistryRepository result = REGISTRY_REPOSITORY_MAP.get(config.getName());
         if (null != result) {
             return result;
         }
@@ -65,18 +65,18 @@
                 throw new UnsupportedOperationException(config.getName());
         }
         result.init(config.getName(), convert(config));
-        REGISTRY_CENTER_MAP.put(config.getName(), result);
+        REGISTRY_REPOSITORY_MAP.put(config.getName(), result);
         return result;
     }
     
     /**
-     * Create config center instance.
+     * Create configuration repository.
      * 
-     * @param config config center config
-     * @return config center
+     * @param config center config
+     * @return configuration repository
      */
-    public static ConfigurationRepository createConfigCenter(final CenterConfig config) {
-        ConfigurationRepository result = CONFIG_CENTER_MAP.get(config.getName());
+    public static ConfigurationRepository createConfigurationRepository(final CenterConfig config) {
+        ConfigurationRepository result = CONFIG_REPOSITORY_MAP.get(config.getName());
         if (null != result) {
             return result;
         }
@@ -94,7 +94,7 @@
                 throw new UnsupportedOperationException(config.getName());
         }
         result.init(config.getName(), convert(config));
-        CONFIG_CENTER_MAP.put(config.getName(), result);
+        CONFIG_REPOSITORY_MAP.put(config.getName(), result);
         return result;
     }
     
diff --git a/shardingsphere-ui-backend/src/main/java/org/apache/shardingsphere/ui/web/controller/ConfigCenterController.java b/shardingsphere-ui-backend/src/main/java/org/apache/shardingsphere/ui/web/controller/ConfigCenterController.java
index a656ddc..3c4be26 100644
--- a/shardingsphere-ui-backend/src/main/java/org/apache/shardingsphere/ui/web/controller/ConfigCenterController.java
+++ b/shardingsphere-ui-backend/src/main/java/org/apache/shardingsphere/ui/web/controller/ConfigCenterController.java
@@ -84,7 +84,7 @@
      */
     @RequestMapping(value = "/connect", method = RequestMethod.POST)
     public ResponseResult<Boolean> connect(@RequestBody final CenterConfig config) {
-        CenterRepositoryFactory.createConfigCenter(centerConfigService.load(config.getName(), OrchestrationType.CONFIG_CENTER.getValue()));
+        CenterRepositoryFactory.createConfigurationRepository(centerConfigService.load(config.getName(), OrchestrationType.CONFIG_CENTER.getValue()));
         centerConfigService.setActivated(config.getName(), OrchestrationType.CONFIG_CENTER.getValue());
         return ResponseResultUtil.build(Boolean.TRUE);
     }
diff --git a/shardingsphere-ui-backend/src/main/java/org/apache/shardingsphere/ui/web/controller/RegistryCenterController.java b/shardingsphere-ui-backend/src/main/java/org/apache/shardingsphere/ui/web/controller/RegistryCenterController.java
index c50c9ab..508f16d 100644
--- a/shardingsphere-ui-backend/src/main/java/org/apache/shardingsphere/ui/web/controller/RegistryCenterController.java
+++ b/shardingsphere-ui-backend/src/main/java/org/apache/shardingsphere/ui/web/controller/RegistryCenterController.java
@@ -84,7 +84,7 @@
      */
     @RequestMapping(value = "/connect", method = RequestMethod.POST)
     public ResponseResult<Boolean> connect(@RequestBody final CenterConfig config) {
-        CenterRepositoryFactory.createRegistryCenter(centerConfigService.load(config.getName(), OrchestrationType.REGISTRY_CENTER.getValue()));
+        CenterRepositoryFactory.createRegistryRepository(centerConfigService.load(config.getName(), OrchestrationType.REGISTRY_CENTER.getValue()));
         centerConfigService.setActivated(config.getName(), OrchestrationType.REGISTRY_CENTER.getValue());
         return ResponseResultUtil.build(Boolean.TRUE);
     }