* `DurationItem` and `ThroughputItem` have been removed. Service defines must be explicit and clear.

*  In server layer, AppServerInfo type represents the basic server info and related metrics
*  In service layer, ServiceInfo type represents the basic service info and related metrics
*  `getServiceSlowTrace` service has been provided by `queryBasicTraces` service. All trace query should be included in that.

apm-protocol/apm-ui-protocol/src/main/resources/ui-graphql/application-layer.graphqls

@@ -31,7 +31,7 @@ type ConjecturalNode implements Node {
 
 extend type Query {
   getAllApplication(duration: Duration!): [ApplicationNode]
-  getApplicationTopology(appId: ID!, duration: Duration!): Topology
-  getSlowService(appId: ID!, duration: Duration!): [DurationItem]
-  getServerThroughput(appId: ID!, duration: Duration!): [ThroughputItem]
-}
+  getApplicationTopology(applicationId: ID!, duration: Duration!): Topology
+  getSlowService(applicationId: ID!, duration: Duration!): [ServiceInfo!]
+  getServerThroughput(applicationId: ID!, duration: Duration!): [AppServerInfo!]
+}

apm-protocol/apm-ui-protocol/src/main/resources/ui-graphql/common.graphqls

@@ -86,15 +86,3 @@ type Call {
     # Unit: millisecond
     responseTimePerSec: Int!
 }
-
-# The item of slow service list
-type DurationItem {
-    name: String!
-    duration: Int!
-}
-
-# The item of throughput list
-type ThroughputItem {
-    name: String!
-    tps: Int!
-}

apm-protocol/apm-ui-protocol/src/main/resources/ui-graphql/overview-layer.graphqls

@@ -32,6 +32,6 @@ extend type Query {
     getClusterBrief(duration: Duration!): ClusterBrief
     getAlarmTrend(duration: Duration!): AlarmTrend
     getConjecturalApps(duration: Duration!): ConjecturalAppBrief
-    getTopNSlowService(duration: Duration!, topN: Int!): [DurationItem]
-    getTopNServerThroughput(duration: Duration!, topN: Int!): [ThroughputItem]
+    getTopNSlowService(duration: Duration!, topN: Int!): [ServiceInfo!]
+    getTopNServerThroughput(duration: Duration!, topN: Int!): [AppServerInfo!]
 }

apm-protocol/apm-ui-protocol/src/main/resources/ui-graphql/service-layer.graphqls

@@ -12,6 +12,14 @@ type ServiceNode implements Node {
     numOfServiceAlarm: Int!
 }
 
+type ServiceInfo {
+    id: ID!
+    name: String
+    # The unit is millisecond.
+    avgResponseTime: Int!
+    tps: Int!
+}
+
 type TraceItem {
     time: String!
     entry: String!
@@ -24,5 +32,4 @@ extend type Query {
     getServiceTPSTrend(serviceId: ID!, duration: Duration!): ThroughputTrend
     getServiceSLATrend(serviceId: ID!, duration: Duration!): SLATrend
     getServiceTopology(serviceId: ID!, duration: Duration!): Topology
-    getServiceSlowTrace(serviceId: ID!, duration: Duration!): [TraceItem]
-}
+}