Homework 3 We continue with the GEMS system
We continue with the GEMS system in the Maple Ridge Engineering case. Your tasks in Homework 3 are as follows:
1. (Worth 20% of the homework grade) Draw the level 1 data flow diagram (DFD) for GEMS process 2, Update Resources, which is the process that will create and update resource information for projects being tracked in GEMS.
Hints:
2. (25%) Draw the level 2 data flow diagram (DFD) for process 1.3, Update Tasks. GEMS process 1.3 will create and update task information for projects being tracked in GEMS. The hints from problem 1 also apply here.
3. (25%) For process 1, Update Project Information, add a new process (process 1.7) that will create and update the Deliverable data store. This data store will keep deliverable information for projects being tracked in GEMS.
The data store will contain the Deliverable Number, Deliverable Name, and Type of Deliverable (such as
software, equipment, and so on). Each Project must have one or many Deliverables, and each Deliverable must be for one Project. Process 1.7 should enable the user to enter the Deliverable information and then select the Project for the Deliverable. Complete both of the following:
a. Write a "Diagram Specification" for process 1.7, similar to what exists for processes 1.2-1.6
Hint: Follow the pattern established by the GEMS analysts in processes such as 1.3 and 1.4.
b. Draw only what will need to be added to the level 1 DFD for process 1 to depict process 1.7. You don't
need to show what already exists in the level 1 DFD for process 1.
4. (20%) Draw the level 2 DFD for the new process 1.7
5. (10%) Draw what will need to be added to the GEMS entity-relationship diagram (ERD) to address the data
requirements for process 1.7. You don't need to show what already exists in the GEMS ERD. Ensure consistency between process 1.7 data stores on the DFD and entities on the ERD (see Additional Guidelines for DFDs
section below)
Note: Use your tool of choice (e.g., Office, OmniGraffle (OS X), Visio, Visible Analyst, etc.). Ideally, you will submit a single document (e.g., pdf, Word, or equivalent) that includes your copy-and-pasted diagrams and other information,but I am flexible. The main thing I am looking for is that you are capable of creating the systems analysis documentation.
Additional Guidelines for Data Flow Diagrams (DFDs):
information to the system
external and it is not the responsibility of this system to manage this data store. External data stores are
modeled on DFDs as External Entities.
Data Flows:
Processes:
DFD Balancing:
Homework 3 We continue with the GEMS system
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