Rapid Application Design (RAD) refers to a software development methodology that uses minimal planning and rapid prototyping, such as Agile and Scrum. It promotes strong collaboration between business owners and developers. Pros include dynamic requirements gathering and unit testing involvement. Cons include reliance on cohesive teams and less formal decision making. RAD uses tools like Eclipse, iPlotz, MySQL Workbench, ActiveCollab, and Subversion. Frameworks include BlueprintCSS, JQuery, and CakePHP. The RAD process involves wireframing, ERD design, converting frames to CSS, using JavaScript frameworks, finding plugins, and choosing PHP frameworks that follow best practices. Source code control and testing are also part of organizing a RAD