¶ Thesaurus
A thesaurus is a controlled keyword list in which the mutual relationships between the keywords are indicated. In Decos Admin you can create thesaurus terms to divide documents into specific categories. For a user who may not know the correct term (preferred term), it is possible to link another (non-preferred) term. If a user chooses a non-preferred term, the preferred term is linked in the background so that your documents are cataloged uniformly.
You can compile a thesaurus in Decos Admin. The following explains the ways in which you can work with thesaurus terms.
¶ Thesaurus toolbar
| Button | Description | Key combination |
|---|---|---|
 |
Show full list | Alt A. |
| Bestand:Icon Nieuwe Thesaurus.png | New | Alt N. |
| Bestand:Icon Nieuw Bestand.png | New group for thesaurus | Alt G. |
.png){kind=icon} |
Save | Alt S. |
 |
Cancel | Alt C. |
| Bestand:Icon Verwijder Thesaurus.png | Delete thesaurus | Alt R. |
| Bestand:Icon Visuele Weergave.png | Visual representation | |
| Bestand:Icon Metadata.png | View metadata | Alt M. |
¶ Adding thesaurus terms
- Click in the Center on the name of the thesaurus to which you want to add terms. You will then see four tabs, the first of which is the tab with the name of the selected thesaurus. Here you can start adding terms.
- The tree structure of the thesaurus is on the left in the Center. In this tree structure, select the place or level where you want to add a term. This can be done by clicking on the plus signs in front of a word or by clicking on the word itself.
File: Add Thesaurustermen.png
- At the level where you want to add a term is . By touching this word with the mouse, the brackets disappear. You can now replace the word New with the desired term and then press Enter. The term has now been added and you can now indicate the relationship between the new term and other terms. To do this, use the fields in the right part of the Center.
¶ Preferred Terms
As an application manager, you can indicate that the thesaurus term is a preferred term. A user who does not know the correct term (preferred term) can enter another (non-preferred) term. If a non-preferred term is chosen, the preferred term will be linked in the background so that your documents are still uniformly cataloged.
Example: a user enters the non-preferred term Job market. The preferred term Job Mediation is automatically selected.
You can do this as follows:
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If the new term is a preferred term, check the Preferred term.
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Click the Link button behind the field.
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In the screen that appears, select the term (s) that should refer to this preferred term. Place a check mark in front of these term (s) and click OK. The non-preferred term is displayed in the field. In the case of a non-preferred term, the tree structure automatically indicates that it is linked to the new term.
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If you made a wrong choice, the link can be undone by ticking the word and pressing the Unlink button. The link is then immediately canceled.
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Click on Save in the toolbar.
¶ Non-preferred term
- If the new term is a non-preferred term, check the Non-preferred term.
- Click the Link button behind the field.
- In the screen that appears, select the term you want to specify as the Preferred Term. Click on this term and finish with OK.
- The tree structure now shows the word (use…) after it. This indicates that the new term is a non-preferred term.
- Click on Save in the toolbar.
¶ Related terms
Related terms indicate relationships between terms, for example, to find documents with the terms “Riding Schools” and “Equestrian Sports” alternately linked in one search. Relationships can only be established between Preferred Terms. If you choose a non-preferred term, you cannot indicate relationships.
- If you want to record the relationship between the new term and a previously added term, click the Link button behind the Related term field.
- In the screen that appears, select the term you want to specify as the Preferred Term. Click on this term and finish with OK.
- If you made a wrong choice, the link can be undone by ticking the word and pressing the Unlink button. The link is then immediately canceled.
- Click on Save in the toolbar.
¶ Scope Note
A scope note is a description of the possible uses of a thesaurus term. This description provides the end user with more information about the application of this term. For example: the thesaurus term Coercive drugs has been added as scope note: In criminal law.
¶ Changing thesaurus terms
How to change a thesaurus term:
- In the Navigation, select Application Manager -> Thesaurus.
- In the Center, select the thesaurus you want to make a change to.
- Select the term you want to change from the tree structure.
- Make the change. You can change the name of the thesaurus term, create any new links, unlink or change the scope note.
- Click on Save in the toolbar.
¶ Remove Thesaurus term
To delete a thesaurus term, proceed as follows:
- In the Navigation, select Application Manager -> Thesaurus.
- In the Center, select the thesaurus to which you want to make a change.
- Select the term you want to delete from the tree structure. Place a check in front of the term.
- Click Delete thesaurus term in the toolbar.
- Click on Save in the toolbar.
¶ Mark Thesaurus as static
If you no longer want to make a thesaurus available for adding terms, for example because a new thesaurus is being taken into use, you can indicate this with the relevant thesaurus.
- In the Navigation, select Application Manager -> Thesaurus.
- In the Center, select the thesaurus you want to make static.
- Under the name of the thesaurus, check Obsolete.
- Click on Save in the toolbar.
The table can no longer be used to link terms, but it can still be used to search for registrations to which terms from this thesaurus are linked.
¶ Import Thesaurus
You can import an existing thesaurus into Decos Admin. This can be the widely used VNG thesaurus, but also a self-made thesaurus.
¶ VNG thesaurus
You can import the basic archive code / thesaurus terms of the VNG from the official CD.
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In the Navigation, select Application Manager -> Thesaurus.
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Select the VNG thesaurus in the Center.
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Click Import in the toolbar.
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In the screen that appears, select the location of the CD.
File: Import VNG.png -
In the field Thesaurus enter the name VNG thesaurus.
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Check:
- Choose file to import
- Group thesaurus terms (this will load a large thesaurus list such as the VNG table faster in the web interface)
- Import relationships from this thesaurus file (this will include the relationships between thesaurus terms in the VNG file in Decos Document).
- Import VNG list.
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Click on Import. This may take some time.
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Click on Save in the toolbar.
¶ Tab-delimited list
You can import an existing or self-created thesaurus from a text file by reading it as a “tab-separated list”. The text file, made in MS Word or almost any other arbitrary word processor, must be structured in such a way that an extra tab is added to the list for each thesaurus level. Terms on the first sub-level are preceded by one tab, those on the second level by two tabs, and so on.
Example:
File: Example.png
The file name for this text file is irrelevant, as long as it is a type .TXT file.
- In the Navigation, select Application Manager -> Thesaurus.
- In the Center, select the thesaurus into which you want to import data.
- Click Import in the toolbar.
- In the screen that appears, select the correct location where the text file is saved.
- Enter the name of the thesaurus in the Thesaurus field.
- Check:
- Choose file to import
- Group thesaurus terms
- Import relationships from this thesaurus file (this will include the relationships between thesaurus terms in the thesaurus file in Decos D5).
- Import tab-delimited thesaurus.
- Click on Import. This may take some time.
- Click on Save in the toolbar.
By importing a thesaurus you overwrite the existing thesaurus. If you want to import a file while retaining the existing terms, this is possible. In this case, make sure that the import file includes a column with column header KEY. Here you put the value that you want to use as a key. If there is a registration in the thesaurus with the same value as in the KEY field of your file, the registration will be updated instead of created. Is this column name not used? Then every CSV record is added as new in the source file.