A Qualifikationsanalyse (skills analysis) can help prove your professional skills if you are missing certificates or other documents.
You can take a Qualifikationsanalyse if you have applied to have your foreign professional qualification recognized in Germany and want to work in an Ausbildungsberuf (skilled trade) or as a Meister (master craftsperson). During the analysis, you show what you can do in practice. For example, you may complete a work task or talk to experts about your skills.