Design specification
Learning Outcome 1: Identify, critically evaluate and recommend information systems solutions for inefficiencies in business processes, procedures and work practices using data and process modelling techniques.
Learning Outcome 2: Formulate, validate and document business requirements for a medium-scale information system development project and effectively communicate these requirements to the stakeholders.
Learning Outcome 3: Demonstrate the ability to effectively analyse, design and develop information systems using Unified Modelling Language (UML) models.
Problem 1: Create and document a Context Diagram for the System.
Problem 2: Create and document a Level 0 Data Flow Diagram (DFD). The Level 0 DFD should contain all the major high-level processes of the System and how these processes are interrelated.
Problem 3: Select three major and non-trivial processes from Level 0 DFD, decompose each of the processes into a more explicit Level 1 DFD.
Problem 4: Using your own experience with similar online student enrolment systems and the information provided in the case study:
(i) Identify all the entities and their relationships in the System
(ii) Create and document an Entity Relationship Diagram (ERD) for the System.
Note: the case study has not and does not intend to provide a comprehensive description of entities in the System. You are expected to use your own experience with information systems in general and online student enrolment systems in particular to develop this ERD. For example, would Subject Name be an attribute for a Subject? Would Date of Birth be an attribute for Students?
Problem 5: Should data be stored in files in a file system or in a database for the System? Justify your answer.
Problem 6: Translate the ERD you developed in Question 4 into a physical relational database design. Document database tables and their relationship in MSWord file. Normalise your database design to the Third Normal Form (3NF).
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