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Has anyone started Part 2 yet?

Joanna Tam
Greenhorn

Joined: Feb 13, 2001
Posts: 1
Has anyone started Part 2 yet? I'm attacking it right now. Since the project description does not say how detail they want the design to be, I would like to see if anyone can answer the following questions for me:
1. For the component diagram, am I responsible for all the web tier components also? For example, there will be a Home page, a search for itinerary page, a list of flights page, a login page and a login error page etc?
2. For the class diagram, am I responsible for all the classes in the web tier as well as the EJB tier?
3. For the sequence diagrams, am I responsible for only the 4 use cases that have detailed descriptions or all the use cases
in the Use Case diagram?
Many thanks!!!
Amanda Waite
Ranch Hand

Joined: Feb 04, 2001
Posts: 56
Hi Joanna,
I have started it but I'm really still tring to get to grips with what I need to do. I've ordered another book that deals with using UML with J2EE, it's called "Enterprise Java with UML".
My biggest problem here is modelling a class diagram that may involve multiple systems as all of my experience so far is writing single system class diagrams. I guess that there is a level of abstraction involved. At least there's no code to write )
Have you finished writing the Use cases yet? I've not really read the interviews fully yet which shows how far I've gon with it.
Good luck
Amanda
Amanda Waite
Ranch Hand

Joined: Feb 04, 2001
Posts: 56
I keep forgetting not to type my own smilies (
Amanda
Vladan Radovanovic
Ranch Hand

Joined: Mar 20, 2000
Posts: 216
Originally posted by Amanda Waite:

I've ordered another book that deals with using UML with J2EE, it's called "Enterprise Java with UML".

Hi, I have passed part one some 5 weeks ago but still haven't even downloaded the second part. Amanda, You are saying that You have ordered "another" book... meaning You already have a book(s) that deals with UML and J2ee? I would like to know which one, because when it comes to UML and J2EE, I have just come across bits and pieces here and there.
Thanks
Vladan
Ct Arrington
Author
Greenhorn

Joined: Jan 17, 2001
Posts: 27
Hi Amanda
I agree completely, using class diagrams to describe distributed systems is dificult at best.
Stereotypes can help, if used consistently. For instance, the stereotype can indicate local or remote. Or the stereotype might indicate the specific type of class, such as EjbEntityBean, EjbSessionBean, or Servlet. This and picking consistent names for different types of classes seems to be it for class diagrams...
Here is another (slightly goofy) technique for sequence diagrams that works for me in Rational Rose:
Before you start the UML sequence diagram, add colored background areas, using notes and fill color. (Doing this first sets the Z-Order to the back)
Then add your objects and messages as usual.
Finally resize the notes so the client objects are in one area and the EJBs are in another.
Hope it helps
CT
PS: If you have time, I am very interested in your reaction to Enterprise Java with UML with respect to the J2EE architect test and in general.

------------------
C.T. Arrington
Author of Enterprise Java with UML


Blog | Getting Started in Software Development
Amanda Waite
Ranch Hand

Joined: Feb 04, 2001
Posts: 56
Originally posted by Vladan Radovanovic:
Amanda, You are saying that You have ordered "another" book... meaning You already have a book(s) that deals with UML and J2ee? I would like to know which one, because when it comes to UML and J2EE, I have just come across bits and pieces here and there.


Hi Vladan,
Sorry I just meant that I'd ordered another book and that this one deals with UML and J2EE.
Amanda
Amanda Waite
Ranch Hand

Joined: Feb 04, 2001
Posts: 56
Originally posted by CT Arrington:
Hi Amanda
I agree completely, using class diagrams to describe distributed systems is dificult at best.
Stereotypes can help, if used consistently. For instance, the stereotype can indicate local or remote. Or the stereotype might indicate the specific type of class, such as EjbEntityBean, EjbSessionBean, or Servlet. This and picking consistent names for different types of classes seems to be it for class diagrams...
Here is another (slightly goofy) technique for sequence diagrams that works for me in Rational Rose:
Before you start the UML sequence diagram, add colored background areas, using notes and fill color. (Doing this first sets the Z-Order to the back)
Then add your objects and messages as usual.
Finally resize the notes so the client objects are in one area and the EJBs are in another.
Hope it helps
CT
PS: If you have time, I am very interested in your reaction to Enterprise Java with UML with respect to the J2EE architect test and in general.

Hi CT,
Thanks for the tips, this makes a lot of sense. I have to admit to having said bad things about stereotypes before, because it's really to over use them.
The book should be here today if Amazon are as reliable as they normally are. I'll be happy to feedback to you about it's usefulness in passing the EA certification.
Amanda
John Wetherbie
Rancher

Joined: Apr 05, 2000
Posts: 1441
Hi, folks!
I did download part 2 and read through the material but since then I have stalled out. My copious free time is being devoted to a couple of other projects right now.
From what I recall I was going to write up a couple of use cases that were mentioned but not included in the package. These would help me document my assumptions on how things would work.
John


The only reason for time is so that everything doesn't happen all at once.
- Buckaroo Banzai
Iyn Shri
Greenhorn

Joined: Apr 20, 2001
Posts: 20
Hi arrington...
Yr hotmail id does'nt seem to function !!!
Vidya
Alberto Dell'Era
Greenhorn

Joined: Mar 02, 2002
Posts: 29
Originally posted by CT Arrington:

PS: If you have time, I am very interested in your reaction to Enterprise Java with UML with respect to the J2EE architect test and in general.

Your book is *excellent*, and I recommend your book to everyone that is studying for SCEA: I've rarely found a book so clear about UML and J2EE.
I've posted a review on Amazon 2 minutes ago if you're interested in feedback; should be online in a couple of days. Great work!


Ciao,<br />Alberto
 
I agree. Here's the link: http://aspose.com/file-tools
 
subject: Has anyone started Part 2 yet?
 
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