I need help with this assignment. It requires building Use Cases for two conditions of a user interfacing with an online store system. I need to use the yEd modeling tool and corresponding UML notations to develop the assignment. Create the following diagrams and export them as .bmp files for inclusion into MS Word.

• Create a Use Case diagram for a student searching an online workshop database for the availability of courses s/he wishes to take in the semester.
• Create a Use Case diagram for a student enrolling in three courses via the online workshop enrollment application.

References:

Sparx Systems (2012). UML Tutorial Part 2. Retrieved from http://www.sparxsystems.com.au/resources/tutorial/uml_tutorial2.html

Bell, D. (2003, June 15). UML basics: An introduction to the Unified Modeling Language. IBM.Retrieved from http://www.ibm.com/developerworks/rational/library/769.html

Bidwx Learning Labs. (2009, May 15). UML Tutorial: Use Case, Activity, and Sequence Diagrams Essential Software Modeling. [Video file]. Retrieved from http://www.youtube.com/watch?v=RMuMz5hQMf4&feature=related

Sparx Systems (2012). UML 2 Use case diagrams. Retrieved from http://www.sparxsystems.com.au/resources/uml2_tutorial/uml2_usecasediagram.html

VP Gallery. (2012). Entity Relationship Diagram. Retrieved from http://www.visual-paradigm.com/VPGallery/datamodeling/EntityRelationshipDiagram.html

Get Ahead. (2012). Free Entity Relationship Diagram tutorial. Retrieved from http://www.itteam-direct.com/gwentrel.htm