In many files or layers-to-one parameter set batch processing, Modeler processes each input file or layer with the same batch parameter set, which you define on a module's control panel.
Figure 1. Many files or layers-to-one batch parameter set
Input file or layer processing sequence
Modeler applies the batch parameter set to the first input file or layer and then stores the result in the first output file. Modeler then applies the same batch parameter set to the second input file or layer and stores the result in the second output file or appends it as a layer. This process continues until all files or layers are processed.