COIS20025 Assessment item 3—Modelling
Due date: Midnight AEST, Friday of Week 11 ASSESSMENT Weighting: 30% 3 Length: No fixed length Objectives
This assessment relates to course learning outcomes 1 to 6 stated in the e-course profile.
Assessment 3 is an individual assessment. In assessment 3 – Modelling, you are required to complete tasks below which assess your general course knowledge, particularly your course knowledge on modelling diagrams in weeks 7-10 about different facets of systems development.
Please note that ALL submissions are passed through a computerized copy detection system and it is extremely easy for teaching staff to identify copied or otherwise plagiarised work.
Copying (plagiarism) can incur penalties ranging from deduction of marks to failing the course or even exclusion from the University.
Please ensure you are familiar with the University’s Plagiarism Policy, available from: http://policy.cqu.edu.au/Policy/policy_file.do?policyid=1245
The tasks
In a report format used in CQUniversity, explain how you would complete the following modelling tasks. The report presentation including the references and appendices will be awarded 10 marks.
You are to develop the report having each task clearly numbered with your answer. You are also expected to write an introduction and conclusion for this report. In performing the following tasks, you have to strictly follow all diagramming rules used in the text for this course.
In each task, please feel free to make any assumption necessary for the readers. The explanation of your assumptions can help the readers to understand what you have considered differently but as important criteria in producing your model.

Task 1 Data Flow Diagram – Context Diagram and Level 0 Diagram (20 marks):
You are assigned a role to develop an ordering system that will allow graduating students in an institution to place order for a cap and gown for graduation. Draw a context diagram and a level-0 DFD for…