In workplace and production contexts, often serves as an abbreviation for specific roles:

SD work entertainment content refers to media optimized for low-cognitive consumption during working hours. Historically, "SD" stood for Standard Definition. In the context of modern workplace media, it has evolved to represent "Secondary Display" or "Simultaneous Delivery" content. Key Characteristics

Perhaps the most sophisticated professional use of SD is in visual effects, where it is being used to solve problems that were previously prohibitively expensive or technically impossible. Kingsley Harden, Creative Director and VFX Supervisor at Jogger Studios, describes a paradigm shift.