<![CDATA[Widowed and divorced women may rely on micro, small, and medium enterprises to sustain household income, yet preliminary sector screening requires a consistent and transparent mechanism. This study developed a Decision Tree model to classify three rule-based MSME sector labels using demographic and economic characteristics. The dataset comprised 3,659 women aged 18–59 years in Kabanjahe District, Karo Regency, Indonesia. Age, occupation, marital-status category, monthly income, number of dependents, and business-ownership status were used as predictors. The target labels—culinary, fashion and handicrafts, and services and creative products—were constructed from predefined weighting rules. After preprocessing and a stratified 80:20 split, evaluation on 732 test records yielded 94.81% accuracy, 94.86% weighted precision, 94.81% weighted recall, and a 94.75% weighted F1-score. Low-income status had the highest impurity-based feature importance (43.11%), followed by the 18–25 age category (12.05%). The model consistently reproduced the constructed labels and produced interpretable decision rules. However, the results do not establish real-world sector suitability or business success because the labels were generated from the same predictor attributes rather than independent expert judgments or observed business outcomes.]]>
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