Systems design is the process or art of defining the hardware and software architecture, components, modules, interfaces, and data for a computer system to satisfy specified requirements. One could see it as the application of systems theory to computing. Some overlap with the discipline of systems analysis ...
Design Methods is a broad area that focuses on:
Exploring possibilities and constraints by focusing critical thinking skills to research and define problem spaces for existing products or services — or the creation of new categories;
Redefining the specifications of design solutions which ...
Design 
