Future-Oriented ESP for Business Professionals: Designing Competency-Based English Learning for Global Workplace Communication

English for Specific Purposes (ESP) has become increasingly important for business professionals who need to communicate effectively in global workplace environments. However, many English learning programs still emphasize general language proficiency rather than workplace-based communication competencies. This article proposes a conceptual and methodological framework for designing competency-based ESP learning for business professionals using the Entropy-TOPSIS decision-making approach. The framework identifies key ESP competencies, including business presentation, professional writing, meeting participation, negotiation, intercultural communication, digital workplace communication, networking, report writing, client communication, and professional confidence. It also compares six learning strategies: task-based learning, simulation-based training, case-based learning, technology-enhanced learning, project-based learning, and workplace-integrated learning. The Entropy method is proposed to calculate objective criterion weights, while TOPSIS is used to rank learning strategies according to their closeness to the ideal solution. The illustrative application suggests that digital workplace communication and intercultural business communication may be important competency priorities, while simulation-based training, workplace-integrated learning, and technology-enhanced learning may be suitable strategies for professional ESP programs. The study contributes to ESP curriculum design by offering a systematic model for linking workplace communication needs, competency-based learning, and multi-criteria decision-making.