1. ISO 9241-11:2018. Ergonomics of human-system interaction—Part 11: usability: definitions and concepts. https://www.iso.org/obp/ui/#iso:std:iso:9241:-11:ed-2:v1:en. Accessed 05 Apr. 2019
2. Cuomo, D.L., Bowen C.D.: Stages of user activity model as a basis for user-system interface evaluations. Proc. Hum. Factors Soc. 2, 1254–1258 (1992)
3. Yang, D., Zhang, D., Zheng, V.W., Yu, Z.: Modeling user activity preference by leveraging user spatial temporal characteristics in LBSNs. IEEE Trans. Syst. Man Cybern. Syst. 45(1), 129–142 (2015)
4. Woerndl, W., Manhardt, A., Schulze, F., Prinz, V.: Logging user activities and sensor data on mobile devices. In: Atzmueller, M., Hotho, A., Strohmaier, M., Chin, A. (eds.) Analysis of Social Media and Ubiquitous Data. MUSE 2010, MSM 2010. Lecture Notes in Computer Science, vol. 6904. Springer, Berlin, Heidelberg (2011)
5. Paulheim, Heiko, Probst, Florian: Ontology-enhanced user interfaces: a survey. Int. J. Semantic Web Inf. Syst. 6, 36–59 (2010).
https://doi.org/10.4018/jswis.2010040103