| Subject | English | Catalan |
| comp., MS | preliminary data validation | validació preliminar de dades (The process of validating data before it is processed. This validation helps detect and exclude some errors from the intended process, which might be the import or migration of users using a CSV file, for example) |
| proj.manag. | preliminary plan | avantprojecte |
| environ. | preliminary proceedings Any introductory action in the judicial process designed to determine the need for further court involvement or to expedite a motion that requires immediate attention | procediment preliminar |
| proj.manag. | preliminary study | estudi preliminar |