Question 1/ What is the most important difference between generic software product development and custom software development? What might this mean in practice for users of generic software products? Question 2/ what are the four important attributes that all professional software should have? Suggest another attribute that you think are important too? Question 3/ (Research) challenges that faces software engineering are many such as heterogeneity, business and social change, and trust and security, identify other problems (Hint: think about the environment)