Design an application in J2EE

Techs,
Our company is stepping into the j2ee technology and going to develop a web based inventory system. We are giving training to the programmers on ejb and other j2ee related technologies. But the problem comes at the design side. How can we design the proposed system, such that it is efficient, scalable and obeys the java and j2ee standards. Can anybody help us by giving directions in designing the same,
Thanks in advance,
Ajay

The design process must be done by using UML ..

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Annoyingly crossposted.
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Reply Awaited.
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1)For cost reasons Client has chosen JBoss as application server.
Will JBoss be handle 500-600 concurrent users? Since
it is manufacturing application the performance is of
prime importance. Will the application built with
JBoss responsive enough to support a manufacturing
assembly line?There's no way to know if it'll be "responsive enough". You'll need metrics to define what that means. It'll depend on your hardware and network, of course. The only way to tell will be to prototype and benchmark.
Frankly, I'm surprised that you're being given carte blanch to develop a system like this. If your bosses are so cost-conscious that they have to go with JBoss (do buy the support contract or you'll be adrift on a sea alone), have they considered "buy vs. build" comparisons? Your staff might be "cheap" because they've already got you in the budget, but your time does cost something.
Are you sure you have sufficient staff and expertise to do this? How many folks will be working on this project?
How firm are the written requirements/use cases? (You DO have written requirements, right?)
2)Interface to Scanner
Scanner is used for all the data input. How we can
recognize end of input and submit the form
automatically? (Comma denotes end of input)Scanned to what? A PDF file? A document image, like TIFF? Submitted to where? Is the data on the form supposed to be parsed somehow and turned into something that the system will use? Difficult question, depending on what you're really doing.
Thought about touch screens instead of paper? Scanning paper on a shop floor might be error-prone (e.g., oil or grease on sheets, etc.)
3)There are some features which need auto refresh of
the screen continuously.
Production department continuously monitors
achievements, pending transactions etc. The screen
should get refreshed automatically. How can we achieve
this?That's not the way HTTP works. It's a stateless, request/response protocol - a user makes a request and gets the refreshed response back. The "screen", in that case, will be a browser. But there's no "push" naturally built into HTTP. You'll need to research something special to do that.
Since all of this sounds like it will be running inside your firewall on your intranet, Swing might be a better choice. If you design the application correctly you can have a Model updated periodically.
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ANNOUNCE: Designing JSF Applications: a Storyboard Approach Part 2

Hello,
In the second article of this series on using storyboard design for Web applications, Steven Murray explains how to map the Storyboard design to a JSF implementation, giving special attention to Storyboard Controllers.
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In part 1 of this series we discussed how to create storyboard designs for Web applications. In part 2 we are going to focus on how to map the design to a JSF implementation, giving special attention to Storyboard Controllers.
Controllers are the heart of the presentation tier, where they manage the behavior of the UI and direct the flow of information between the presentation and business models. Almost every article I read on JSF, and even the specification itself, references Model View Controller (MVC) without providing any concrete examples on how to actually use it in a JSF project. I hope to change that with the introduction of the Presentation Model.
Read the full article or download the podcast here: [Designing JSF Applications: a Storyboard Approach Part 2|http://www.jsfcentral.com/articles/storyboard_2.html] =>http://www.jsfcentral.com/articles/storyboard_2.html]
Kito D. Mann -- Author, JavaServer Faces in Action
http://twitter.com/kito99 http://twitter.com/jsfcentral
http://www.virtua.com - JSF/Java EE consulting, training, and mentoring
http://www.JSFCentral.com - JavaServer Faces FAQ, news, and info
+1 203-404-4848 x3

Hello,
In the second article of this series on using storyboard design for Web applications, Steven Murray explains how to map the Storyboard design to a JSF implementation, giving special attention to Storyboard Controllers.
Here is an excerpt:
In part 1 of this series we discussed how to create storyboard designs for Web applications. In part 2 we are going to focus on how to map the design to a JSF implementation, giving special attention to Storyboard Controllers.
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Read the full article or download the podcast here: [Designing JSF Applications: a Storyboard Approach Part 2|http://www.jsfcentral.com/articles/storyboard_2.html] =>http://www.jsfcentral.com/articles/storyboard_2.html]
Kito D. Mann -- Author, JavaServer Faces in Action
http://twitter.com/kito99 http://twitter.com/jsfcentral
http://www.virtua.com - JSF/Java EE consulting, training, and mentoring
http://www.JSFCentral.com - JavaServer Faces FAQ, news, and info
+1 203-404-4848 x3

Designing an application

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I want to design an application which can take an input of database,text,csv,xml files. So I want to do it using design patterns. Which design pattern I should use?
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Diana

Diana12 wrote:
I want to design an application which can take an input of database,text,csv,xml files. So I want to do it using design patterns. Can you at least explain WHY you think you want to use a design pattern? It seems to me you have fallen prey to buzzword bingo.

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in general not just for BizTalk).
Maintain Documentation: Document the requirement and proposed solution. try to document your work, which would help.
Consider performance: Don't just implement the solution technically, consider about the performance. As questions like ..Do you really need BizTalk for your requirement? Do you really need Orchestration? etc..
monitoring system: Consider about implement good monitoring system. Consider using SCOM/Openview/BizTalk360 for operational support and start designing your solution in line with this monitoring requirements.
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Then there are standard best practices like project/solution structure, coding standards, etc..
If this answers your question please mark it accordingly. If this post is helpful, please vote as helpful by clicking the upward arrow mark next to my reply.

Design Model applications?

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Marc

How to design Java application?

What are the general guidelines and best practices to keep in mind while designing Java application?
Hi
I recently completed Java programming tutorial from Sun and practised core java (I have previous programming experience). Now I understand the basics of Inheritance, Abstraction , Polymorphism,Encapsulation
Now i am writing Java code without much difficulty, but am not sure of application design. This is my main problem: "DESIGNING" the application. Say if i have given a task to create an application in Java, What should I start up with? How to think about? Any formal/informal guidelines I should follow while developing class hierarchies? I am really confused (abstract class or interface or sub class..?). Should I start by model everything, before writing code?
It would be very useful for people like me to have a SET OF GENERAL GUIDELINES/BEST PRACTICES, which we can follow while start developing a new java application.
Please provide me some guidelines/thoughts/books/resources/tools I should read or Use
Thanks in advance
Scott

Not necessarily. While some programmers may be Software Engineers others may not have the knowledge base of someone who has read at least one SE book. An practical example is outsourcing. Typically, the code writing (programming) bit is outsourced with the requirements gathering (an SE task), cost management (project mgmt. or SE task), time management (PM or SE), etc. kept locally.
Look, I'm not going to reply further because this is going to run on and on and on. To put it into my local patois, "Alz I'm gonna tell youse is ta read da software engineering book, okay?"*
*Where's Kel when youse need 'em? Yo! Kel!

Design an application in J2EE

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