Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)
National Exams, 04-Soft-A3 Software Design — May 2019. Closed-book exam, 3 hours, two double-sided reference sheets allowed, no calculator. Six questions constitute the exam paper; candidates answer five of the six, with the first five as they appear in the answer book marked, and each question and each sub-question carries equal value. Every question is answered in full below so this solution serves as a complete study resource for the whole bank.
Reference texts: Sommerville, Software Engineering (10th ed.); Pressman, Software Engineering: A Practitioner's Approach (9th ed.); Gamma, Helm, Johnson & Vlissides (GoF), Design Patterns: Elements of Reusable Object-Oriented Software; ISO/IEC 25010, Systems and Software Quality Requirements and Evaluation (SQuaRE); SWEBOK v4.