3. (a) Outline what is meant by Data Access Patterns. [4 Marks] (b) Choose one data access pattern that you are familiar with and provide the following: (i) Outline the problem it addresses. [5 Marks] (ii) Provide an example structural model (class diagram) that would illustrate its implementation. [8 Marks] (iii)Describe, in detail, an example context in which it might be utilised - ensure you provide an architectural perspective as part of your description and use code examples to illustrate your answer. [16 Marks]