You essay should include : an introduction to your field of study , which sets the context for the comparison. a formal definition of the terms or concepts. an extension of this definition , which might describe components or application. a comparison and contrast showing the similarities and differences between the terms. references both in your text at the end in your text to any sources you have used. an alphabetical list of the sources you consulted - your essay should be between 800-1000 words long. Try to include only essential information which explains the context, the definition and its extension and some example. Submission of written work: Written work must be submitted in two ways: 1- It should word processed wiyh double spacing and a blank line between each paragraph . there should be a cover page with your name and registration number , the title of your work and the name of your class . this paper copy should be submitted to your class tutor for writing. 2- You should also submit an electronic version of your course work to the assessment area in version, www.vision.hw.ac.uk your work will be checked by the Turnitin software to make sure you have referenced correctly. My teacher advised us that: - what you are doing. - why you are doing it. - what you hope to (show/ explain / reveal). - how you are going to do it ... (methodology) - In this paper I intend to ....... - This paper intends / will show the different trends in ....