Explain the structure of a raster and vector data model and how and

Task:

Explain the structure of a raster and vector data model, 

Advantages and disadvantages of using raster and vector data model,

how and why raster and vector data model would be used in a GIS project.

Report Type: Scientific report (no report heading required)

10 References… (a couple of Figure need to add)

3000 words.