Website development and website design are mainly two faces of the same coin. To run the website on World Wide Web needs both designing and development.
Designing includes the entire scope that range from planning to execution. However, in the web world, designing a website generally concerns with the process of coming up with ideas as well as incorporating them through graphic software like Adobe Photoshop. Web designer provides the framework for the look and feel of the web page. It involves whole appearance of the website like the colors used, the layout, were to put what images, interaction and interactivity and so on.
However, at the same time web designer should have some basic understanding of the back end development work which goes behind developing a website. Having some prior idea on the technicalities of developing a website helps in the process of coming up with the best designs for a web page. Thus the designer should use his artistic talent and knowledge of the savvy designs to design a website page which is what the clients usually look for.
Conversely, website development deals with the 'how' part of translating the website design to something that is LIVE and viewable to the users of the world wide web. It is part where developer uses different programmes and codes to construct the back end of a website, like Notepad, Dreamweaver and so on.
Web development refers to the non-designing aspect of developing and building a web page, with use of various forms of scripting languages like JavaScript, PHP, ASP, ASP.NET and Coldfusion and so on to name a few. Web developers use all these various scripting languages to put functionality to an otherwise dormant website design.
To make a great success of a website both the website designer and the website developer requires working in unison.
