Examine the Table Shown Below

Essay

Examine the table shown below. This table represents the hours worked per week for temporary staff at each branch of a company.

(a) The table shown above is susceptible to update anomalies. Provide examples of how insertion, deletion, and modification anomalies could occur on this table.
(b) Identify the functional dependencies represented by the data shown in the table. State any assumptions you make about the data (if necessary).
(c) Using the functional dependencies identified in part (b), describe and illustrate the process of normalization by converting Table 1 to Third Normal Form (3NF) relations. Identify the primary and foreign keys in your 3NF relations.
(d) Create an Entity-Relationship (ER) model using the Unified Modeling Language (UML) to represent the data shown in Figure 1. Your ER model should show all entities, relationships, and attributes.