diff --git a/service/ConfigService.go b/service/ConfigService.go
new file mode 100644
index 0000000..89f7f66
--- /dev/null
+++ b/service/ConfigService.go
@@ -0,0 +1,4 @@
+package service
+
+type ConfigService struct {
+}
diff --git a/service/CrawlerService.go b/service/CrawlerService.go
index 6d43c33..7e2b2d8 100644
--- a/service/CrawlerService.go
+++ b/service/CrawlerService.go
@@ -1 +1,20 @@
 package service
+
+type CrawlerService struct {
+}
+
+func (cs *CrawlerService) Install() error {
+
+}
+
+func (cs *CrawlerService) Uninstall() error {
+
+}
+
+func (cs *CrawlerService) Update() error {
+
+}
+
+func (cs *CrawlerService) Authenticate(crawler *configM.Crawler, target *configM.Target) error {
+
+}
diff --git a/service/DiscoveryService.go b/service/DiscoveryService.go
new file mode 100644
index 0000000..25c47c9
--- /dev/null
+++ b/service/DiscoveryService.go
@@ -0,0 +1,36 @@
+package service
+
+type DiscoveryService struct {
+}
+
+func (ds *DiscoveryService) DiscoverZone(dz *discoveryM.DiscoveryZone) error {
+	return nil
+}
+
+func (ds *DiscoveryService) DiscoverHost(zone *discoveryM.Zone, dz *discoveryM.DiscoveryHost) error {
+	return nil
+}
+
+func (ds *DiscoveryService) DiscoverPort(host *discoveryM.Host, dz *discoveryM.DiscoveryPort) error {
+	return nil
+}
+
+func (ds *DiscoveryService) DiscoverService(port *discoveryM.Port, dz *discoveryM.DiscoveryService) error {
+	return nil
+}
+
+func (ds *DiscoveryService) DiscoveredZone(zone *discoveryM.Zone) error {
+	return nil
+}
+
+func (ds *DiscoveryService) DiscoveredHost(host *discoveryM.Host) error {
+	return nil
+}
+
+func (ds *DiscoveryService) DiscoveredPort(port *discoveryM.Port) error {
+	return nil
+}
+
+func (ds *DiscoveryService) DiscoveredService(service *discoveryM.Service) error {
+	return nil
+}
diff --git a/service/LogService.go b/service/LogService.go
new file mode 100644
index 0000000..9853291
--- /dev/null
+++ b/service/LogService.go
@@ -0,0 +1,8 @@
+package service
+
+type LogService struct {
+}
+
+func (ls *LogService) Send() error {
+
+}
diff --git a/service/ProbeService.go b/service/ProbeService.go
index 344e88c..fa09dbe 100644
--- a/service/ProbeService.go
+++ b/service/ProbeService.go
@@ -1,2 +1,14 @@
 package service
 
+type ProbeService struct {
+}
+
+func (ps *ProbeService) Start() error {
+
+}
+func (ps *ProbeService) Stop() error {
+
+}
+func (ps *ProbeService) Update() error {
+
+}
diff --git a/service/SensorService.go b/service/SensorService.go
index a89c6c7..0ae9586 100644
--- a/service/SensorService.go
+++ b/service/SensorService.go
@@ -2,3 +2,23 @@ package service
 
 type SensorService struct {
 }
+
+func (ss *SensorService) Start(id int64) error {
+
+}
+
+func (ss *SensorService) Stop(id int64) error {
+
+}
+
+func (ss *SensorService) Add(config *configM.Config) error {
+
+}
+
+func (ss *SensorService) Remove(id int64) error {
+
+}
+
+func (ss *SensorService) Update(id int64) error {
+
+}