This paper explores and deploys a business oriented taxonomy of decisions from which to ascertain change in student viewpoint regarding the study of sustainability modules. A review of conceptual and empirical studies to date on business cohorts' viewpoints regarding sustainability study notes the lack of business contextualization and the emphasis on the affective learning domain without sufficient focus on cognitive learning aspects. The paper then puts forward a taxonomy of decisions termed Messages, Measures and Moves charting progressive degrees of intrinsicality of business performance decision against which sustainability can be attached. With a questionnaire tool based on this taxonomy, primary research is undertaken with a small undergraduate business cohort both pre and post first sustainability module study. The authors acknowledge limitations regarding sample size, lack of cohort comparison/benchmarking and the module's elective status on the programme concerned. Nonetheless, the findings tentatively indicate sustainability module study to engender a degree of viewpoint change from business students in terms of movement/extension through the taxonomy putting sustainability into increasingly intrinsic business performance decisions. Further research is recommended including across multiple cohorts and on mandatory business sustainability modules--as well as invitation of further refinement of the business oriented taxonomy and questionnaire tool.