Ad-Hoc Group Exercise #2 Data Flow Diagram (DFD)

The intent of this assignment is to help you learn process modeling (see Chapter 7 of the textbook).

The assignment is to draw a series of dataflow diagrams for the hiring process within Human Resources described in this narrative:

XYZ Inc. is a software firm with about 1000 employees. The Human Resources (HR) manager maintains employee records and also is responsible for hiring new employees. Prospective employees may apply at any time. Each application is retained for one year and then purged. Software development team managers send a job description listing required and desirable qualifications to the HR manager whenever they have a job opening on their team. The HR manager compares the qualifications for the job opening with those in the applicant pool and then schedules interviews between the team manager and a small number of applicants. The team manager sends evaluations of the candidates' interviews to the HR manager, who makes the final hiring decision after checking the interview evaluations and candidate applications against the job qualifications and then sends an offer letter to the selected applicant with a copy to the team manager. The selected applicant accepts the job by signing and returning the offer letter at which point the applicant's information is added to the employee records and is removed from the applicant pool.

(If you think it would be helpful, start with drawing a use case diagram.) Your dataflow diagrams should be complete and follow the rules for DFDs (i.e., they should be logically and technically accurate). They should be laid out in a format that is easy to read.

The series of diagrams should include context and level-0 diagrams plus a level-1 diagram for one process (of your choosing) in the level-0 diagram.

Also, include a detailed description of a dataflow out of the process on the level-0 diagram that is decomposed on the level-1 diagram. The detailed description of this dataflow should list/describe the specific data elements/attributes included in this dataflow and the entity or entities that those data elements/attributes are describing.

Finally, include a repository report for all the items in the diagrams. In this repository refer to your level-1 diagram of the one process from the level-0 diagram that you decomposed and include the detailed description of the dataflow out of this process that you described above. The idea behind incorporating these items into the repository is to begin developing a useful repository report.

You should use MS Visio to draw the diagrams and start the repository report (which you can edit in Excel.) However, you then should copy and paste all elements into a single Word document, which should be submitted in the Assignments tool in Isidore.

Your work on Ad-Hoc Group Exercise #1, and your notes from upcoming class discussions on Chapter 7 (Process Modeling), would be a useful resource to consult for this assignment.