home.md

@@ -6,7 +6,7 @@ Manage the business logic between Som Connexió tools and OTRS (ticketing system
 
 ## Processes
 
-This library cover the next processes:
+This library covers the next processes:
 
 ### Provision
 
@@ -26,10 +26,21 @@ This library cover the next processes:
 
 Which entities of OTRS we use in the integrations?
 
-* [Ticket](entities/otrs-entities#Ticket)
-* [Article](entities/article)
-* [DynamicField](entities/DynamicField)
-* [CustomerUser](entities/CustomerUser)
+* [Ticket](otrs-entities/ticket)
+* [Article](otrs-entities/article)
+* [DynamicField](otrs-entities/dynamic-field)
+* [CustomerUser](otrs-entities/customer-user)
+
+## Mapping ERP — OTRS
+
+The mapping between the entities of ERP and OTRS is:
+
+* Ticket --> Contract
+* CustomerUser --> Partner
+
+Article and the list of DynamicFields are related to Ticket. The combination of ticket, dynamc fields and article is mapped with Contract.
+
+![mapping](entity_mapping.png)
 
 
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@@ -41,7 +52,7 @@ Which entities of OTRS we use in the integrations?
 Follow the next intructions to preview the wiki in your computer.
 
 We use [Pyenv](https://github.com/coopdevs/handbook/wiki/Uso-de-pyenv-en-Coopdevs) to manage the Python version and dependencies.
-Follow the instructions to install Pyenv and then you must to create a virtualenv called `otrs-somconnexio.wiki`:
+Follow the instructions to install Pyenv and then you must create a virtualenv called `otrs-somconnexio.wiki`:
 
 ```
 $ pyenv virtualenv 3.8.2 otrs-somconnexio.wiki