A particularly important step in preparing a systematic search is the compilation of search terms.
To do this, you first formulate your topic in a few meaningful sentences or questions that take into account the different aspects of the topic. Filter out the most important terms from these sentences and questions and write them down.
If the library has specialist databases on the subject area in question, it may be worth taking a look at the thesauri in advance. The following screenshot shows an example from the technology thesaurus of the TEMA database for the search term "Zweitaktmotor [two-stroke engine]".
Example: Thesaurus entry for "Zweitaktmotor [two-stroke engine]" in the TEMA database
(E - English translation, O - generic term, U - subterm, V - related term)
In the next step, you amend the terms you consider relevant to the topic by:
|thematic aspects||crawfish||Baltic Sea region|
|synonyms||crab, crayfish, crustacean||Baltic Sea, Baltic Sea area|
|related terms||tracheal animals||Baltic Sea coast, Baltic Sea countries|
|generic terms||arthropod, multicellular animal, lower animal, marine animal||sea, inland sea|
|subterms||edible crab, hermit crab, beach crab, lobster||Germany, Sweden, Estonia, Flensburg Fjord|
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