Simplify Routine maintenance: Using standardized techniques for dealing with prevalent tasks, reducing the complexity of servicing and updates. Facilitate Extensibility: Employ inheritance and polymorphism to create versatile and extensible code which will accommodate future alterations. 8. Refers major hardware or software difficulties or defective products to sellers or specialists https://lanevyywt.bloggerswise.com/43910884/about-web-developer-online-courses-coursera