The document discusses factors to consider when designing language tests, including instructional objectives, proficiency level, activities, and available resources. It recommends choosing tasks that align with objectives and are appropriate for proficiency, starting with closed-ended tasks for beginners and open-ended for advanced students. Open-ended tasks reflect authentic language use but are time-consuming to score. Both closed and open-ended tasks should be considered based on feasibility, topic, difficulty, and time allotted.