doc: change names

Author: uwzm

README.md

@@ -136,24 +136,13 @@ module is set to demjson3 per default. The backend can be modified by calling
 
 Since version 2.0.0 this client supports general OData models hosted by FROST servers with active OData plugin.
 
-For this purpose the client provides a command line interface for generating a python module containing the URL of the FROST server in use as well as source code for the Python classes corresponding to the data model contained in it. It is called like this:
+For this purpose the client provides a command line interface for generating a service configuration module containing the URL of the FROST server in use as well as source code for the Python classes corresponding to the data model contained in it. It is called like this:
 ```bash
-frost-codegen --url http://localhost:8080/FROST-Server --out my_datamodel
+frost-codegen --url http://localhost:8080/FROST-Server --out my_service_configuration
 ```
-The generator tries the OData 4.01 endpoint of the FROST server in use first and falls back to the OData 4.0 if the other one is not available.
+The generator tries the OData 4.01 endpoint of the FROST server in use first and falls back to the OData 4.0 if the other one is not available. If even the latter is not available the generator fails.
 
-In order to use the custom data model it needs to be imported in the source code. The corresponding service needs to be created with paramter `model` instead of `url`. In fact, the following two programs are equivalent:
-```
-import frost_sta_client as fsc
-import .my_datamodel as my_model
-
-service = fsc.SensorThingsService(model=my_model)
- 
-my_entity = my_model.MyEntityClass(...)
-service.create(my_entity)
-```
-
-For backward compatibility, a client for a FROST server containing the SensorThings data model can be used as in previous versions of this client. In fact, the following two programs are equivalent in this case:
+In order to use the generated service configuration module, it needs to be imported in the source code. The corresponding service needs to be created with paramter `config` instead of `url`. In case the FROST server in use contains the SensorThings data model, the following two programs are equivalent:
 
 Variant I:
 ```
@@ -175,15 +164,15 @@ service.create(thing)
 Variant II:
 ```
 import frost_sta_client as fsc
-import .my_datamodel as my_model
+import my_service_configuration
 from geojson import Point
 
-service = fsc.SensorThingsService(model=my_model)
-m = service.model
+service = fsc.SensorThingsService(config=my_service_configuration)
+mdl = service.model
 
 point = Point((-115.81, 37.24))
-location = m.Location(name="here", description="and there", location=point, encoding_type='application/geo+json')
-thing = m.Thing(name='new thing',
+location = mdl.Location(name="here", description="and there", location=point, encoding_type='application/geo+json')
+thing = mdl.Thing(name='new thing',
                     description='I am a thing with a location',
                     properties={'withLocation': True, 'owner': 'IOSB'})
 thing.locations = [location]