Web design is the process of creating the look, feel, and branding of a Website. This should be seen as auto body work. You are working on the exterior (front end) features of your Website. Web design includes the creation of logos, graphics, and other advanced visual elements such as FLASH.
Web design encompasses many different skills and disciplines in the production and maintenance of websites. The different areas of web design include web graphic design; interface design; authoring, including standardized code and proprietary software; user experience design; and search engine optimization. The term web design is normally used to describe the design process relating to the front-end design of a website including writing mark up. Web design partially overlaps web engineering in the broader scope of web development.
Web development is the programming (data processing) of your Website. This should be seen as building the engine of an automobile. Web development often refers to data driven Websites but also refers to other automated features such as mail scripts.
Web development is a broad term for the work involved in developing a web site for the Internet .Web development can range from developing the simplest static single page of plain text to the most complex web-based internet applications, electronic businesses, and social network services. Among web professionals, “web development” usually refers to the main non-design aspects of building web sites: writing markup and coding.
Web developers add the functionality to your Website. This may be a shopping cart, registration system, or any other automated tasks you might have that, in most cases, require a database.