EA - IT Portfolio Management > Drawing up a Technology Inventory > Importing Technologies from BDNA > Merging BDNA technologies with existing technologies of your repository
Merging BDNA technologies with existing technologies of your repository
Your repository may contain technologies created outside of the BDNA import. These technologies do not benefit from the provider data and updates supplied by the BDNA connector, such as official life cycle dates, for example. To keep the data for these technologies while benefiting from BDNA information, you can merge it with the BDNA technologies that you import HOPEX IT Portfolio Management.
You can merge technologies in three different ways:
• By merging the technologies already contained (BDNA and non-BDNA) in your repository case by case
• By specifying, during the import of BDNA technologies, those that correspond to technologies existing in your repository
• By specifying the BDNA identifier in the technology's properties
Merging two technologies in HOPEX
To merge two technologies:
1. Click the navigation menu then Technologies.
2. In the edit area, select the technologies to merge.
3. In the menu bar of the list, click More > Merge technologies.
4. In the wizard that appears, enter:
• The source technology, which will be merged in the target technology
• The target technology, which will include information of the source technology.
5. Click Next.
6. Select the properties you want to keep from the source and target technologies. By default, properties of the target technology are selected.
7. In the same way, select the links you want to keep.
8. Click OK.
Merging technologies on BDNA import
When you import technologies in your HOPEX repository, you can merge them with technologies already present in your repository. The technologies merged in this way are identified as BDNA technologies and can subsequently be updated as such.
In the same way, you can merge vendors.
Example of merged technologies 
You want to import the "TX Controller V1.15" technology that corresponds to the "Skype control" technology in your repository.
Once the technologies are merged, the existing technology, "Skype control", is kept in your repository. In its properties you can see the ID as well as the BDNA name of the technology to which it corresponds: "TX Controller V1.15".
The "TX Controller" version has also been imported. This is the major version of "TX Controller”, from which the imported version is derived. In its properties, in the Version page, you can see the different versions of this technology that exist in your repository.
For more details on how to merge technologies and vendors at import, see Importing new Objects from BDNA.
Modifying the BDNA Identifier of a technology in HOPEX
To define a technology as a BDNA technology, you can manually specify its BDNA identifier.
To specify a BDNA identifier:
1. Select the technology in question.
2. Click the Properties button in the edit area.
The properties of the technology appear.
3. Select the BDNA page.
4. In the Identifier field, enter the BDNA identifier number.