air lulu

Ranch Hand
+ Follow
since Jan 11, 2005
Merit badge: grant badges
For More
Cows and Likes
Cows
Total received
In last 30 days
0
Forums and Threads

Recent posts by air lulu

This report shows the total points that could have been awarded in each section and the actual amount of points you were awarded. This information is provided in order to give you feedback on your relative strengths on a section basis. The maximum number of points you could have received is 100, minimum to pass is 70. Class Diagram (44 maximum) .......................... 39 Component Diagram (44 maximum) ...................... 38 Sequence/Colloboration Diagrams (12 maximum) ........ 11
do you have document the assumption?
aha,i scan many threads about this topic(i can search many), but there is no final answer for it.
i think i should ignore the detail, just draw the sequence diagram exactly according the description from UC.
Be an architect, i don't need to think about the business detail, am i?
In the uc of change itinerary, "Customer selects the segment to change", i can't image how can the customer change the segment?
i saw many booking system, there is no one providing this function.
in the uc of prepare itinerary, when customer enter departure and return city, the system return the list of fitting itinerary, each itinerary includes a set of segments, and customer choose itinerary, in here customer can not change the segment in each itinerary.
so i doubt that how can customer change segment in the uc of Change Itinerary?
it is compared to stateful session bean.
the deliverables of the assignment is:
1、Create a class diagram. It is not necessary to provide each method name and attribute in the class.
2、Create a Component diagram that shows all of the J2EE components used in the system and their interaction. For example, what EJBs, Servlets, and/or JSPs might be needed?
3、Create either a Sequence or Collaboration diagram for each use case provided.
4、Listing of any assumptions made during the process of coming up with the architecture and design.

So i think i just need submit the design(html+images),not the entire web-app,is it right?
1.which is potential advantage of a one-tier application architecture?
A.Security
B.Interoperability
C.Scalability
D.Manageability

Answer:A

but i prefer D. what about you?

2.which is for managing enterprise services,systems and networks.
A.JTA
B.JSP
C.JMAPI
D.JDBC

Answer:A

but i prefer c. what about you?
143You are currently designing your own Desktop Publishing application, as you have not found any that do exactly what you want with existing applications. As part of the design you are using a Controller to which you send all GUI requests. Not all objects can process the same commands. For example you can't select the spell check tool when an image has the focus. To stop any possible errors you would like to filter out some of the messages as they are passed from these objects to the Controller object. What pattern could you use?

AFirewall
BProxy
CAdapter
DObserver
EChain of Responsibility
FFilter

Choice B is correct.

but i prefer E. what about you?
ha ha, i think he will get it in the coming future.
i would choose whizlabs with no reason.
question:
You are working for a web design company and one of your clients would like to convert their website that currently uses Perl and CGI scripts over to a language that is easier to maintain and reuse. Their website is a sports betting website where the customer is able to logon and place bets on a variety of different sporting events. What would you replace this with?
AJSP/Servlets
BJSP/Servlets/EJBs
CJMS
DASP
Choice B is correct.

the reason given is that "transactions are involved and this means that Enterprise Java Beans need to be used. It is very hard to implement transactions with just Servlets and JSPs".

but i don't understand why it is hard to implement transaction with servlet?(considering distritbuted tx is not involved)
"In the event that the server is secure or cannot communicate in the most efficient manner JRMP falls back to HTTP."
what does "fall back to HTTP" mean?
port:
HTTP 80
SSL 443
IIOP 1099
JRMP 535
TOMCAT HTTPS 8433
thank you for your reply!!
very helpful
i meet the question in "Sun Certified Enterprise Arthitect for J2EE Study Guide".
14. Which of the following are not true about screen scrapers?
A. Screen scrapers function as terminal emulators on one end and as object interfaces on
the other.
B. Screen scraping may be a useful tool when used in conjunction with the off-board servers.
C. Changes to legacy UI has little or no impact on the new GUI.
D. Screen Scraping is best used when the legacy clients have loose coupling with other tiers.

the correct answer is C and D.
but i don't know what "screen scraper" is,does anyone help me?