How to publish a service through the portal interface, managing service specifications Service Specifications represent the services being offered. To list your service specifications go to My Offerings  section and click on  Service Specifications . Additionally, it is possible to filter the shown services by its state. To do that, click on  Filter by state and choose the required parameters. To create a new service click on the  Add new service button. Service's creation form has three steps. On the first step, related to the service's general information, you should provide the service's name and optionally its description. The second step is where you can (optionally) add characteristics related to the service. In order to do that you should click on the  Create new characteristic button and a creation form will be displayed. In this form you can select the type of characteristic that you want to create (i.e. String, Number or Number Range) by clicking on the type dropdown button. Once you've selected the type of characteristic that you want to create you should fill the name and description fields and add at least one value by filling its fields and clicking on the  Plus button next to them. Additionally you can delete any value you've created by clicking on the  Delete  button next to the value itself and select the default value for the characteristic by clicking on the check button of the specific value (the one with the blue check next to it is the default value). Whenever you finish filling the characteristic's information you should click the  Save characteristic button. On the characteristic's list preview you can also remove any characteristic by clicking the  Delete button next to it. If you're done with the characteristics you can click the  Finish button which will lead you to the service's preview. Finally in order to create the service click on the  Create service  button. Providers can also update their services. To do that, click on the Edit button of the service to open the update view. Then, update the fields you want to modify, click on  Next  over the steps and then click on  Update Service .