Abstract
<h:p>This volume presents the results of an intervention study involving 9th-grade high school students and apprentices in the hospitality industry, which empirically examines writing in a professional context. The study focuses on the question of what writing performance the students demonstrate when drafting job applications and advertising letters during the course of the writing project using "self-regulated strategy development". To answer this question, both the written products and the writing processes were recorded and evaluated primarily using quantitative methods. The goal of the study is to improve the writing competencies of the participating students based on the selected text types, as measured by content, linguistic, and formal aspects.</h:p> <h:p/>