Integrating Causal Foundation Model in Prescriptive Maintenance Framework for Optimizing Production Line OEE

• URL: http://arxiv.org/abs/2512.00969v1
• Date: Sun, 30 Nov 2025 16:33:30 GMT
• Title: Integrating Causal Foundation Model in Prescriptive Maintenance Framework for Optimizing Production Line OEE
• Authors: Felix Saretzky, Lucas Andersen, Thomas Engel, Fazel Ansari,
• Abstract summary: The transition to prescriptive maintenance in manufacturing is critically constrained by a dependence on predictive models.<n>This paper proposes a model based on causal machine learning to bridge this gap.
• Score: 1.4045035442386142
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: The transition to prescriptive maintenance in manufacturing is critically constrained by a dependence on predictive models. These models tend to rely on spurious correlations rather than identifying the true causal drivers of failures, often leading to costly misdiagnoses and ineffective interventions. This fundamental limitation results in a key-challenge: while we can predict that a failure may occur, we lack a systematic method to understand why a failure occurs, thereby providing the basis for identifying the most effective intervention. This paper proposes a model based on causal machine learning to bridge this gap. Our objective is to move beyond diagnosis to active prescription by simulating and evaluating potential fixes toward optimizing KPIs such as Overall Equipment Effectiveness (OEE). For this purpose a pre-trained causal foundation model is used as a "what-if" model to estimate the effects of potential fixes. By measuring the causal effect of each intervention on system-level KPIs, it provides a data-driven ranking of actions to recommend at the production line. This process not only identifies root causes but also quantifies their operational impact. The model is evaluated using semi-synthetic manufacturing data and compared with a baseline machine learning model. This paper sets the technical basis for a robust prescriptive maintenance framework, allowing engineers to test potential solutions in a causal environment to make more effective operational decisions and reduce costly downtimes.

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