Web design is a broad term covering many different skills and disciplines. The different areas of web design include; web graphic design, interface design, authoring; including standardised code and proprietary software.
and The term "software development" may be used to refer to the activity of computer programming, which is the process of writing and maintaining the source code that is involved between the conception of the desired software through to the final manifestation of the software, ideally in a planned and structured process.