Anwendungspotenziale für Business Intelligence-Technologien im Call Center-Bereich. - Christian Hrach; Rainer Alt (Wirtschaftsinformatik (2), 2009)

Value Chain Cockpit auf Basis betrieblicher Anwendungssysteme. - Andrej Werner; Christian Hrach; Karen Heyden; Rainer Alt; Bogdan Franczyk (MKWI, 2010)

Datenschutz im Callcenter. - Christian Hrach; Rainer Alt; Lars Nöbel (HMD Prax. Wirtsch., 2011)

Operational Business Intelligence bei Call Centern- Erkenntnisse einer Fallstudienuntersuchung. - Christian Hrach; Rainer Alt (MKWI, 2012)

Aufgabengebiete und Entwicklungspotenziale von Energiemanagementsystemen. - Alexandra Herzog; Christian Hrach; Nadja Schubert; Rainer Alt (MKWI, 2014)

Gamifizierung mit BPMN. - Benedikt Morschheuser; Christian Hrach; Rainer Alt; Christoph Lefanczyk (HMD Prax. Wirtsch., 2015)

Toward a Configuration Model for User-Oriented Representations of Analytical Services. - Christian Hrach (BIS (Workshops), 2016)

Functional service description on service marketplaces. - Christian Hrach; Rainer Alt (MKWI, 2018)

Configuration Approach for Analytical Service Models - Development and Evaluation. - Christian Hrach; Rainer Alt (CBI (1), 2020)

Process-oriented documentation of user requirements for analytical applications - challenges, state of the art and evaluation of a service-based configuration approach. - Christian Hrach; Rainer Alt; Stefan Sackmann (FedCSIS, 2022)

Configuration Approach of User Requirements for Analytical Applications - Challenges, State of the Art and Evaluation. - Christian Hrach; Rainer Alt; Stefan Sackmann (ISM@FedCSIS, 2022)

Conceptional Framework for the Objective Work-Related Quality of Life Measurement Through Multimodal Data Integration from Wearables and Digital Interaction. - Jenny Voigt; Jakob Hohn; Ekaterina Mut; Celine Schreiber; Sophia Mareike Geisler; Pauline Sophia Pinta; Alisa Hamm; Hamlet Kosakyan; Juliette-Michelle Burkhardt; Christian Hrach; Ulf-Dietrich Braumann; Franziska Stutzer; et al. (FedCSIS (Position Papers), 2024)