Question

Constructing Data Flow Diagrams

UniArt company has grown to have different branches across UAE, they want to create a Hiring system to facilitate the employment process for the company.

• The HR officer initiates a new job application and he sets up the job description. Job descriptions are stored in a separate database.
• A Job Seeker completes the job application form and uploads his documents, a database for job seekers forms and their documents is created.
• The system will filter the related applications and send qualified applications to the HR officer.
• The HR officer schedules an interview on the system, the system will show the scheduled interview to the job seeker.
• The system will also send the scheduled interview details to the manager (who will interview the job seeker).
• Both the manager and the job seeker will confirm or request change for the interview time.
• After the physical interview, the Manager will place the interview results on the system.
• The system will send interview results to the HR officer.
• Interviews conducted or not will be stored with their results in a database.
• if the interview results were positive, the HR officer will initiate on the system a hiring offer to be sent to the job seeker.
• The job seeker will accept or refuse the offer. If accepted the HR will create a contract to be signed by the Manager first then the Job Seeker who sign it and it will be then stored also into the system.
• if the interview results were negative, the system will initiate a letter thanking the job seeker for his interests in the job.
• Interview result status (positive/negative) must be added to the job seeker file.

Based on the previous scenario, create the following:

1. Create a Context diagram

2. Create level zero DFD diagram

3. Refer to your teacher, to know which level 0 process to develop into level 1 DFD diagram.

Answer 1

Context diagram is shown below :

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Zero-Level DFD :

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