Describe the different phases of systems design

Assignment Help Basic Computer Science
Reference no: EM131072275

Objective:

This is a group case study aimed to give the student an overview of an Information System environment and to apply analyses and designing techniques during system development.

Outcomes:

1. Apply the tools of structured analysis within a process of systems design.

2. Describe the different phases of systems design.

3. Illustrate appropriate format and media for input design.

4. Identify different types of output design and its guidelines.

Task A: Work Proposal

You are required to submit the proposal with the following details.

1. Name of the organization that you selected for Task C and the date you are planning for the interview.

2. Identify all the external entities, files and major processes from the scenario (Task D).

3. Division of work between group members and timeline for completion of each task.

4. Identify and specify all the resources needed to solve the assignment, especially Task B.

Instructions to students:

- Include the relevant citations (in-text) and references (at the end)
- Marks will be awarded for the content written in your own words
- If two or more documents contain duplicate information, marks will be deducted as per plagiarism policy.

Objective: This is a group case study aimed to give the student an overview of an Information System environment and to apply analyses and designing techniques during system development.

Outcomes:

1. Apply the tools of structured analysis within a process of systems design.

2. Describe the different phases of systems design.

3. Illustrate appropriate format and media for input design.

4. Identify different types of output design and its guidelines.

Task A: Work Proposal

You are required to submit the proposal with the following details.

1. Name of the organization that you selected for Task C and the date you are planning for the interview.

2. Identify all the external entities, files and major processes from the scenario (Task D).

3. Division of work between group members and timeline for completion of each task.

4. Identify and specify all the resources needed to solve the assignment, especially Task B.

Task B-Literature Review and referencing

a) Read the articles uploaded on Moodle (group work) and as an individual activity, select and read another research paper from any journal related to the same topics (one each per team member).

b) Write a detailed literature review in your own words for all the papers you have read.

c) Cite and reference all the sources used in your assignment.

Task C-Analysis of an existing organization from the perspective of a System Analyst

Select any Omani digital firm and conduct an interview with the IT head of the organization. The purpose of the interview is to identify the business tasks, procedures, business goals and to find areas that can be improved by applying technology. After conducting the interview, prepare the following.

a. Provide the list of questions you asked during the interview.

b. Write a short description of the chosen organization/department. Prepare a summary of your findings about the business processes, procedures and objectives of the chosen organization/department based on the interview analysis, websites and other sources.

c. As a system analyst, prepare a recommendation on how to improve the existing procedures using suitable technology to help the organization achieve the business objectives effectively.

d. Based on one business process identified from the above analysis, prepare and design an Input Form for the proposed system of the chosen organization following the guidelines of creating a form. Also briefly explain the guidelines followed in creating the form.

e. Prepare and design an Output Form for the proposed system following the guidelines of creating an output form. Also briefly explain the guidelines followed in creating the form.

Task D-Case Study Analysis

Tasks: Read the following scenario, understand and present your response.

Description of the Organization:

Oman Arab is an advertising company. They specialize in using large helium balloons to help businesses with their marketing. They rely on computer processing and databases to manage the distribution of balloons around the country. Customers can hire their advertising balloon by phoning up the nearest branch of the company.

Scenario:

Customers call and inform the office of the booking time and details. Whoever answers the telephone, checks the booking file to see if the time requested by the customer is available. The customer's booking details, which include contact details, advertising text, balloon type and installation instructions, are taken down and entered in the customer file.

The total price is negotiated between the company and the customer. If the customer orders more than five times, a 5% deposit of the negotiated amount is requested from the customer. If the order has been placed between two to four times, 10% deposit of the negotiated amount is requested from the customer. This is noted in the accounts file.

When the deposit is received, a receipt is sent to the customer and the accounts file is updated. A designer then uses the advertising details to create a number of designs and these are sent to the customer. The customer selects the appropriate design and adds comments for any alterations and returns the design to the advertising section. The changes are made and the customer file is updated with the design details that will be used.

The balloon is created and an account is produced and sent to the customer. Installation is then completed at the prearranged time. When the full payment has been received from the customer the accounts file is updated and a statement showing all payment details is sent to the customer.

At the end of the week a Business Transaction Report is produced for the customer and the customer file is updated .The company also sent the report to the head office.

Based on the above narration, perform the tasks listed below:

1. Prepare the following for the above mentioned scenario:

a. Context diagram.

b. Level 0 DFD (Data Flow Diagram).

c. Level 1 DFD of any one of the processes identified in the Level 0 DFD.

d. Write Structured English to express the logic covered in the 2nd and 3rd paragraphs in the scenario.

Task E - Reflective Writing/Critical Evaluation (Individual Task)

Reflect on the significance and meaning of your learning experience in this module. You could include the following:

a. Team experience

b. Learning experience (content and language)

c. Self-evaluation

d. Challenges faced

e. Solutions

f. Plans for improvement

Reference no: EM131072275

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