UML Diagram with 10 elements or nodes, assignment help

Q1. Using the patient information system case study:

1. Create a comprehensive and detailed activity diagram
   with ten or more elements or nodes.
2. Identify a set of use cases that illustrate 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.

For this assignment I am looking for these
items based on the Mentcare System:

1) An Activity UML diagram with 10 or more
nodes.

2) An Use Case UML diagram with 5 or more
actors, one of whom MUST be a doctor.

3) An essay of between 100-150 words (i.e. a
short but not too short essay) that does the following:

    a) Compares these two UML
diagrams that you created for this assignment -> HOW ARE THEY ALIKE, IF
AT ALL?

    b) Contrasts these two UML
diagrams that you created for this assignment -> HOW ARE THEY
DIFFERENT, IF AT ALL?

    c) OPTIONAL -> When would
you use each one?  What do you think of these?

For full credit you need all three major
components.

Q2. Develop a sequence diagram showing the
interactions involved when a student registers for a course in a university.
Courses may have limited enrollment, so the registration process model include
checks that places are available. Assume that the student accesses an
electronic course catalog to find out about available courses.

Requirement: Just Diagram
is enough.

Budget:
$10 is the maximum that I can pay for this assignment.