Performing Process and Data Modelling for Online Student Enrolment System

Based on your responses to Assessment 1 – Written assessment, perform process and data modelling and develop and document a number of design diagrams using UML (including Context Diagram, Level 0 and Level 1 Data Flow Diagram, Entity Relationship Diagram).

In Assessment 1, you performed a comprehensive requirement analysis for the online student enrolment system at the ABC University. With an in-depth understanding of the functional requirements of the System, you are now required to perform further analysis through process and data modelling. In doing so, you also need to provide a preliminary data storage design for the System.

Both process modelling and data modelling can be used to provide deeper understanding of a new System. Thus, they are an integral part of System Analysis. Process modelling describe business processes – i.e. the sequence of activities that people do; while data modelling seeks to describe the data flows through those processes. Data flow diagrams (including context diagrams) and entity relationship diagrams are the most common process and data modelling techniques used in industry.

Please complete the following tasks:

1. Create and document a Context Diagram for the System. 

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. 

3. Select three major and non-trivial processes from Level 0 DFD, decompose each of the processes into a more explicit Level 1 DFD. 

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.

5. Should data be stored in files in a file system or in a database for the System? Justify your answer.

6. Translate the ERD you developed in Task 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).

a) Identify, critically evaluate and recommend information systems solutions for inefficiencies in business processes, procedures and work practices using data and process modelling techniques.

b) Formulate, validate and document business requirements for a medium-scale information system development project and effectively communicate these requirements to the stakeholders.

c) Demonstrate the ability to effectively analyse, design and develop information systems using Unified Modelling Language (UML) models.