A one-page long abstract in English (see Abstract template) is also to be submitted with thesis.
The abstract must be bound into the thesis. The abstract is supposed to contain the title of thesis, possibly the name of the company which provided the candidate with the topic/task, the objectives, the sub-tasks completed, the methods applied, the applicability of the results, the conclusion or evaluation.
The abstract is not identical with the “Summary” chapter of thesis (for reasons of restrictions on length), though obviously similar to its content. The abstract is to be written in a way if someone reads this single page, he/she should get an overview of the whole work.
The length of the abstract should be between 1800-2200 characters, one page (DIN A/4).