diff --git a/datastore.go b/datastore.go
index a887ab7..24feaa5 100644
--- a/datastore.go
+++ b/datastore.go
@@ -11,6 +11,7 @@ type datastore struct {
 	Name   string `yaml:"name"`
 }
 
+//BuildConnectionString return postgres connection as string
 func (ds *datastore) BuildConnectionString() string {
 	return fmt.Sprintf("PG: host=%s port=%d dbname=%s user=%s password=%s", ds.Host, ds.Port, ds.DBName, ds.DBUser, ds.DBPass)
 }
diff --git a/layer.go b/layer.go
index ffa5752..c6e3c69 100644
--- a/layer.go
+++ b/layer.go
@@ -55,14 +55,14 @@ func (layer *GdalLayer) LayerToPostgis(targetSource gdal.DataSource, manager *Ma
 	return
 }
 
-//GetGeomtryName Get Geometry Name
+//GetGeomtryName Get Geometry Name point/line/....etc
 func (layer *GdalLayer) GetGeomtryName() (geometryName string) {
 	geom := gdal.Create(layer.Layer.Type())
 	geometryName = geom.Name()
 	return
 }
 
-//GetLayerSchema Get Layer Schema
+//GetLayerSchema return slice of layer fields
 func (layer *GdalLayer) GetLayerSchema() (fields []*LayerField) {
 	if layer.Layer != nil {
 		layerDef := layer.Layer.Definition()
@@ -84,7 +84,7 @@ func (layer *GdalLayer) GetLayerSchema() (fields []*LayerField) {
 	return
 }
 
-//GetFeatures Get Layer Features
+//GetFeatures return layer features
 func (layer *GdalLayer) GetFeatures() (features []*gdal.Feature) {
 	if layer.Layer != nil {
 		count, ok := layer.Layer.FeatureCount(true)
diff --git a/manager.go b/manager.go
index 7ae40cb..90aad86 100644
--- a/manager.go
+++ b/manager.go
@@ -50,7 +50,7 @@ func (manager *ManagerConfig) PublishGeoserverLayer(layer *GdalLayer) (ok bool,
 	return
 }
 
-//OpenSource open Datasource
+//OpenSource open data source from path
 func (manager *ManagerConfig) OpenSource(path string, access int) (source gdal.DataSource, ok bool) {
 	driver, err := manager.GetDriver(path)
 	if err != nil {
@@ -60,7 +60,7 @@ func (manager *ManagerConfig) OpenSource(path string, access int) (source gdal.D
 	return
 }
 
-//GetDriver open Datasource
+//GetDriver return the proper driver based on file path
 func (manager *ManagerConfig) GetDriver(path string) (driver gdal.OGRDriver, err error) {
 	if pgRegex.MatchString(path) {
 		driver = gdal.OGRDriverByName(postgreSQLDriver)