This study proposes a cognitive assistance paradigm for professional audio interfaces, grounded in three interrelated design strategies: modular structure, metaphorical guidance, and interaction consistency. Adopting a design-based research (DBR) approach, the work draws on three original interface design projects—Puma X, Tiger X, and Hippo X—created by the author to support real-world audio workflows. Puma X modular task design helps users better master the audio editing workflow; the metaphor-driven control of Tiger X enhances recognition and users' sense of control; the consistent and continuous feedback of Hippo X ensures the clarity and confidence of users' operations. The Perception-Identification-Execution (PRE) model was developed from these design situations. This is a closed-loop cognitive support system that amalgamates design with the user's workflow phases. This paradigm offers pragmatic recommendations to enhance usability and alleviate cognitive strain in expert-driven system interfaces.