“…A well-structured schema that includes all relevant tables and correct relationships between them, is not only easier to maintain, but also facilitates analysis of data. Normalisation is the process, or series of steps, which database developers use to refine the schema so that data and data dependencies are preserved, data dependencies make sense, and that redundant data are eliminated (Kolahi, 2007). These steps reduce the amount of space a database uses, ensure that data are logically stored, and reduce the chance of data inconsistency.…”