1)   Select one of the following systems models. Post an original thread of 100 to 150 words each in this week’s discussion forum which explains what it is, what it does and how it is used. (20 points)

• Context model
• Interaction model
• Structural model
• Behavioral model                                                                                                                                                                 

2) Using the patient information system case study:

1. Create a comprehensive and detailed Activity UML diagram with ten or more elements or nodes.
2. Create a Use Case UML diagram that illustrates the interactions between a doctor and the Mentcare system. Identify use cases with at least 4 other user groups, such as receptionists, medical records staff, the Human Resources Department, Legal Department, Pharmacy, Safety, Finance Department, potentially the patient population, etc.  Create a comprehensive and detailed use case diagram containing at least five such actors.
3. Compare and contrast the two different diagramming approaches and how the goals of each vary. This short essay should be between 100 and 150 words.

UML diagrams going forward should be developed using a UML diagramming tool such as Gliffy, Creately, etc. Please print the file to a .pdf format prior to turning it in. You may also use drawing tools in MS Word, PowerPoint, or Visio. However, if Visio is used, please print the file to a .pdf format before turning it in.

https://www.gliffy.com/uses/uml-software/

http://creately.com/

http://iansommerville.com/software-engineering-book/case-studies/the-mentcare-system/