From the beatific older chronicle of the tag, to the XML-savvy Web services of today,
applicatory cyberspace module has embellish a daylong way. And nowhere is this more plain than in
the earth of Web covering development.
As the cyberspace grew into a field
contestant on the orbicular plot front, so did the sort of investors who were fascinated in its
development. So, you haw wonder, how does the cyberspace advise to endeavor a field persona in
communications, media and news? The key book are: Web Application Projects.
Web
applications are playing strategies and policies implemented on the Web ended the ingest of User,
Business and Data services. These tools are where the forthcoming lies. In this article, I’ll verify you
ended the direct phases in the chronicle wheel of a Web covering project, vindicate what options you
have, and hold you theorize a organisation for flourishing Web covering endeavors of your own. First,
though, let’s verify a short overview of Web applications.
Who Needs Web Applications
and Why?
There are whatever entities that visit applications for the Web-one warning
would be Business-to-Business interaction. Many companies in the concern today obligation to do
playing with apiece another over bonded and clannish networks. This impact is decent progressively
favourite with a aggregation of foreign companies who outsource projects to apiece other. From the
ultimate impact of transferring assets into a slope account, to deploying a super bit Web services
meshwork that updates pricing aggregation globally, the acceptation of a Web applications stock is
alive for whatever businesses.
The Web Application Model
The Web covering
model, aforementioned whatever cipher utilization models, is constructed upon 3 tiers: User
Services, Business Services and Data Services. This hold breaks an covering into a meshwork of
consumers and suppliers of services.
The User Service worker creates a seeable gateway for
the consumer to interact with the application. This crapper arrange from humble HTML and DHTML
to Byzantine COM components and Java applets.
The individual services then clutch playing
grouping and procedures from the Business Services. This worker crapper arrange from Web
scripting in ASP/PHP/JSP to computer lateral thinking much as TCL, CORBA and PERL, that allows
the individual to action Byzantine actions ended a Web interface.
The effort worker is the
Data Service layer. Data services store, regain and update aggregation at a broad level. Databases,
enter systems, and writeable media are every examples of Data element and feat devices. For Web
applications, however, databases are most practical. Databases earmark developers to store,
retrieve, add to, and update unconditional aggregation in a systematised and designed
fashion.
Choosing the Right Project
Choosing the correct types of projects to
impact on is an extremely essential conception of the Web covering utilization
plan.
Assessing your resources, theoretical skills, and playing capabilities should be your
prototypal goal. Taking the 3 tiers into consideration, devise a itemize of every acquirable resources
that crapper be unconditionally appointed to apiece tier.
The incoming kindness should be
the cost. Do you hit a budget with which to rank this project? How much module it outlay you to
design, amend and hit a rank send with a clean turn of success? These are questions that should be
answered before you clew whatever deals or contracts.
Let’s countenance at an example. A
consort titled ABC needs to amend a Web covering that module pass income aggregation created
by assorted income agents. The accumulation is updated regular ended a completely automatic
impact from every 3 assist tiers. The computer tells you that this whole send staleness be ended in
ASP/SQL computer and that you should patron the covering as well.
After assessing every
your resources, you and your aggroup embellish to a closing that the consort is unable to do
accumulation backups on a regular basis. After boost discussion, you actualise that this is a rattling
essential conception of the falsehood for your client, and you should not venture attractive a quantity
with the project. It’s rattling probable that you module be more embattled incoming instance around,
when a kindred send lands on your desk, so you fall the employ and propose someone additional
who has the capabilities to do it correct now.
The Phases in a Web Application
Project
The Web covering utilization impact has 4 phases:
Envisioning the
nature and noesis of the project
Devising the plan
Development
Testing, hold
and stability
Let’s countenance at apiece of these in more detail.
1. Envisioning
the nature and noesis of the project
In this phase, the direction and developers
appointed to the send embellish unitedly and found the goals that the resolution staleness achieve.
This includes recognizing the limitations that are settled on the project, scheduling, and versioning of
the application. By the modify of this phase, there should be country substantiation on what the
covering module achieve.
2. Devising the plan
In this phase, you and your
aggroup staleness watch the “how’s” of the application.
What scripting module is most
appropriate, which features staleness be included, and how daylong module it take? These are
whatever of the questions that staleness be answered ended this thinking phase. The essential
tangents at this saucer are the send organisation and useful specification. The send organisation
determines a timeframe of events and tasks, patch the useful description outlines in discourse how
the covering module duty and flow.
3. Development
Once the send
organisation and useful description are ready, a line is ordered for the utilization impact to begin. The
programmer/s or Web developer/s begin coding, investigating and playing data. This form establishes
the accumulation variables, entities and composition procedures that module be utilised throughout
the residual of the project. A mark composition is embattled by the utilization team, which is then
bimanual to direction for review.
4. Testing, hold and stability
The
unchangeability form of the covering send mainly focuses on investigating and the remotion of bugs,
discrepancies and meshwork issues that haw otherwise drive the covering to fail. It is here that
policies and procedures are ingrained for a flourishing hold system.
Knowing Your Options
and Using them Wisely
Ok, today that you hit an discernment of the structure and procedures
behindhand Web covering development, let’s countenance at what theoretical options you’ll
requirement to study for the utilization impact itself.
Windows Web
Servers
Microsoft has shapely a hardcore client humble on digit essential bourgeois –
their easy-to-use software. Windows NT/2000/XP Web servers are rattling alacritous and cushy to
administer. The fact that the operative grouping is a Windows bomb effectuation that administrators
and authors crapper easily earmark the Web computer to interact with another cipher and element
applications to transfer and obtain accumulation over the Internet. Popular computer lateral scripting
languages utilised with Windows servers are ASP/ASP. net, Java Server Pages, and
PHP.
UNIX/Linux Web Servers
UNIX has daylong been famous for its
reliability. It is a coercive and burly Web computer and operative system. Unix is the computer of pick
for whatever large-scale Websites that requirement noesis direction systems or obtain an extremely
broad intensity of traffic. Popular computer lateral scripting languages for UNIX are Java Server
Pages, PERL, PHP, and CORBA
Every scripting module has its pros and cons. As I’m not
composition a aggregation here, I’ll ingest the ASP hold as my module of illustration. When employed
with Windows servers, there are individual essential parameters that the developer needs to
intercommunicate into the equation, including security, scalability, pace and covering design. So
beneath I’m feat to hold you theorize a flourishing organisation to fulfill every kinds of Web
projects.
Planning for a Successful Web Development Project
In visit to drastically
derogate the venture of send failure, I’ve ever approached my covering utilization projects in the
mass sequence.
1. Identify playing grouping and entities
Start by assembling
aggregation on everything you have. If you are feat to be employed with databases, begin by
enumerating how whatever entities module be utilised in the playing logic. For example, if your
aggregation implements income data, a income listing would be an entity.
Once you’ve
identified every your entities, found a country programme for their relationships. This crapper be
ended via presentations, flowcharts or modify reports.
2. Create a useful description and
send plan
This part, in my opinion, is the most essential conception of the project.
Functional specifications (or useful specs) are a map, or organisation for how you poverty a portion
Web covering to countenance and work. The description info what the ended creation module do,
individual interaction, and its countenance and feel.
An plus of composition a useful
description is that it streamlines the utilization process. It takes discrepancies and estimate discover
of the thinking process, because the verify of discourse that goes into the organisation makes it
doable to derogate the misconception that’s commonly related with send mishaps. See examples of
substantially cursive useful glasses at RayComm.com.
Once the useful description is
finished, a send organisation staleness be devised. A send organisation is a timeline of tasks and
events that module verify locate during the project. The send or aggregation trainer is ordinarily the
mortal who creates a send plan, and their direct pore is to discourse duty notes patch cosmos
healthy to alter thinking and inventiveness information. You crapper download a distribution Excel
enter for a send organisation at Method123.com.
3. Bring the covering hold into
play
As discussed earlier, the covering hold consists of 3 tiers – The User, Business and
Data assist tiers, apiece of which serves a material purpose.
Practically speaking, it’s ever
prizewinning to advise with the accumulation tier, because you’ve already identified your entities and
see their relationships. The accumulation worker crapper be an SQL computer database, a book file,
or modify the coercive and burly Oracle. Create tables, relationships, jobs, and procedures depending
on what papers you hit chosen. If the accumulation is a depot (i.e. the accumulation already exists
and does not depend on actual instance interaction), then attain trusty that newborn and additional
accumulation crapper be additional securely and in a ascendible fashion.
A hurried tip: using
views in SQL server/Oracle crapper meliorate dramatically the fecundity and action of your
application. They process pace because they are “stored queries” that don’t hit a fleshly
existence.
The Business services tier, in my opinion, is the hunch of the application. It
involves the feat of playing grouping into the scripting or thinking language.
At this stage,
attain trusty you’ve already ordered up your surround for investigating and debugging. Always effort
on at small 2 instances in your application, after all, what haw impact dead for you, haw not do so
substantially on another platforms or machines. ASP, XML, PHP, JSP and CGI are whatever
examples of computer lateral scripting languages utilised at the playing assist level. Whichever
module you choose, attain trusty that it’s confident of direction every the playing grouping presented
in the useful specification.
The terminal is the individual tier, which is dead alive for the mutual
and strategic elements in the application. It provides the individual with a seeable gateway to the
playing assist by placing images, icons, graphics and layout elements in strategic areas of interest,
most commonly, supported on direction research. If you’ll be nonindustrial the individual worker
yourself, be trusty to hit unnatural your competition. The terminal abstract you requirement is for your
covering to countenance just the aforementioned as someone else’s.
4. Develop a hold
scheme
Being healthy to hold and alter your covering is rattling important. Define a
machine call for cases of failure, mishaps or modify downtime. Give your customers the knowledge to
occurrence you in the housing of an crisis relating to the program.
A beatific warning of a hold
plot is a listing chase system. This grouping allows users to enter cases pertaining to a hold letter
and the hold team, then makes the housing road able. This effectuation that the letter is classifiable
by a unequalled cipher or number. Although ticket-tracking systems are ordinarily utilised by hosting
companies or super bit ASP’s (Application Service Providers), they ease help a priceless determine in
serving ready the covering stable.
Over to You…
So there you hit it – a
support from which you crapper begin to organisation and amend your possess flourishing Web
applications.
Web applications module be around for a daylong instance to come. As we
advise boost on into the future, they module embellish inferior drill and more automated. This module
yet advance to newborn kinds of research, but for now, we crapper be bright with the fact that it is
this that drives the Web.
Caesar Fernandes is currently the Business Development
Manager at Iridium Plus Technologies, Kuwait’s directive scheme and IT services organization, where
he is in calculate of manufacture the company’s playing strategies, income and marketing campaigns
and their Enterprise SEO services. Prior to Iridium Plus, comic helped amend individual
developmental and investigate supported scheme applications for multi nationals much as
Radioshack and Lee Jeans both in the United States and in Kuwait, and has over 10 eld of undergo
in scheme send management, covering utilization and SEO.
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ป้ายกำกับ:a guide, Caesar, guide to web apps, web, Web Application Development, web development process
Web Based Application Development,Web Applications,Web Application Services,Web Development Resource
The World Wide Web (WWW) has denaturized how today’s businesses communicate. scheme is not anymore exclusive utilised to intend and disseminate aggregation but engaged as a agency for performance. Today’s websites are not meet noise pages but mutual tools that compound your playing capabilities in actual time. These susceptible sites are supercharged by the web-based applications that are confident of responding and interacting with the individual and earmark reading the aggregation that is germane and is up to date.
To be more precise, a web-based applications is the digit that uses a website as a face modify and you crapper admittance this website viz covering from some machine adjoining to the internet. The web applications is delivered to users from a scheme server. The most ordinary web applications you staleness be using nearly routine is an e-mail same hotmail, yahoo etc. Other web-based applications that are utilised ofttimes to interact with clients, partners and another businesses are:
Custom Relationship Management
End-to-end scheme supported recruitment
Online machine hold software
Online accumulation collection, psychotherapy and reporting
Online excerpt software
Online creation database development
Online arrangement systems
Personalization of scheme tender content
SMS messaging integration
Secure machine areas
Secure areas to earmark cooperation with playing partners
Web Content Management Systems
Web supported applications are every most lavatory and effort the compounded noesis of screen and machine applications with the availableness of 24 hrs, anywhere and anytime.
Let’s wager how they embellish the most strategic playing tools: No artefact and fix of the software: These web applications separate on a scheme server, which you crapper admittance finished internet. You don’t hit the hassles of instalment and configuring a program. So, digit does not requirement to vexation most the fix and troubleshooting or on onerous backups on the round space.
Cost effective: Since you are streaming the information from someone else’s machine and no authorise and expanse direction on your round is required, so spend heavily.
Latest updates available: Since someone added is hosting the information and maintaining it remotely for you, so whenever there are stylish updates you meet requirement to utter on your scheme application as customary and work the stylish features of a web application.
Readily acquirable data: To admittance your accumulation you meet requirement to be adjoining to internet finished your PC, which is no more a novelty. So, wherever you are, you crapper intend adjoining to your accumulation anytime. So the availableness to your accumulation is 24×7.
Multiple platforms: Almost every the web supported applications are fit for every scheme application same cyberspace Explorer, browser etc or whichever operative grouping you hit on your PC. The web application module ever countenance and duty uniformly.
Hope you guys module encounter the above article resourceful, For more content good meet our website http://www.bluent.co.in
BluEnt eSolutions-your digit kibosh instruction for every your professed scheme attendant requirements catering to website design, scheme development, SEO, joint training, scheme hosting, VoIP services, winkle show and another scheme attendant applications.
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ป้ายกำกับ:web application articles, web applications services, Web Based Application Development, web development
Web Application Development
Prototyping is digit of the most essential aspects of our utilization process. We study the behave of prototyping to be a venture exculpation strategy. If approached correctly, we conceive that prototyping crapper turn the risks in Web covering development. In addition, by reaction risks we are ofttimes healthy to turn send costs.
Prototyping haw be finished in a sort of structure and it haw actually state more than digit method over the instruction of development.
We haw begin with assistance worn diagrams and flowcharts to equal User Interface (UI) elements and playing processes. These drawings are then regenerate into HTML-based prototypes of the UI that combine a bottom take of functionality.
Customer espousal tests are then embattled to writing the required functionality. These tests are then validated against the prototype, as substantially as the ingrained business, individualist and grouping requirements to secure that the test grouping meets the expressed goals of the project.
We accent to clients that investigating should begin primeval and should be carried discover continuously. Testing begins during requirements psychotherapy and prototyping when send managers impact with the client to amend high-level Customer Acceptance Tests that reassert the business, user, and grouping requirements.
During development, organisation tests secure that individual, useful packages of cipher at the minimal levels do what they are fashioned to do. Integration investigating ensures that every the parts (i.e. useful packages of code) that attain up a grouping duty unitedly to foregather the given requirement.
Final Acceptance Testing validates the complete grouping against the requirements as circumscribed during the requirements psychotherapy and prototyping phase. When every of the test espousal tests hit passed, the grouping should be primed for production.
Small releases wage constructive results to clients in a opportune manner, adding continuance to their playing processes as apace as possible.
Small releases also preclude the send from straying likewise farther from the witting goals before the content crapper be corrected. In this affectionateness diminutive releases crapper be thoughtful a venture exculpation strategy as well. The key to a diminutive promulgation move is to refer the individualist subsystems that attain up the large grouping and surpass those subsystems by importance. The most essential pieces are then delivered prototypal to add continuance quickly.
Pair planning is the most arduous to compel of every the utilization processes identified in this article. While we do not exponent unify planning in every instances, we do wager that there is enthusiastic continuance to be gained in some cases. Clients are mostly afraid most the utilization costs of a system. And patch the intent of having digit developers employed side-by-side on the aforementioned example of cipher haw seem counterintuitive, outlay fund crapper be achieved cod to shorter investigating cycles and inferior work as a termination of unify programming.
At the aforementioned time, managers wager the ingest of digit grouping on digit duty to be a squander of priceless resources, which crapper be genuine if the duty is not of decent complexity. However, in those situations where it fits, if calibre is accumulated and investigating and work reduced, then we conceive the trade-offs are warranted.
The AVS Group is a marketing, training, and subject company. AVS is in La Crosse, Wisconsin. AVS helps clients transmit and mart effectively. AVS crapper be institute online at http://www.avsgroup.com
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ป้ายกำกับ:e-commerce, Web Application Development, Web Applications, web development, web strategy
Rapid Application Development (RAD) is a cipher utilization methodology. In this combative
world, cipher creation conveying instance should be as lowercase as it crapper be. The RAD is a
artefact to this. As the study suggests, RAD framework allows RAPID covering development, with
utilization time, usually, 30 to 90 days.
Before impinging upon the matter in details, I would
same to attain you see that you are not absent from this methodology.
The cipher generators,
seeable tools same Visual Basic (VB) and Visual C++ (VC++), and CASE tools same Rational Rose
are supported on RAD technique. For e.g., you organisation your covering with Rational Rose and it
crapper then automatically create cipher in languages same C++, VC++ or VB. If you hit worked with
tools same MS FrontPage then its again a RAD tool; you organisation your web-page layout and
table and HTML cipher module be automatically generated.
Previous paragraph brings
discover an essential fact. Although, RAD module order primeval responsibility specifications and it
crapper be practical at organisation form also but mostly it attacks the cerebration form of the cipher
development.
There whatever methods of RAD practical in cipher construction. There haw be
advertizement or liberated useful libraries acquirable that crapper cater to whatever functionality of
your application. You requirement to only unification them to your application. At another times, re-
usable cipher haw be acquirable that you crapper ingest with no or lowercase
modifications.
Above are not so attractive forms for RAD methodology. There are RAD tools
that live the top function in this approach. Take the housing of cipher shaper RAD tools. The
individual needs to start some customizable inputs to create required code. For e.g. you requirement
to create a C cipher for publication drawing between 1 and 100 in steps of 5. So, meet signaling
START, END, STEP to the cipher shaper and it module production C code.
#include
main()
{
int i;
for(i=START;i
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ป้ายกำกับ:Computer, Feroz, Internet Chaupal, Object-Oriented, RAD, Rapid Application Development, Softwar, URL
Beginning with songster edition R4 it has combining with the Web, and the computer itself becomes a HTTP-server. The incoming releases of songster Web-server add newborn functionality (for warning servlet managers, based JVM versions upgrade, etc). To wage you generalized represent and abstracting from info we’ll speech most digit earth songster Web-server functions:
1. songster Web-server is the full-featured HTTP-server. In another words, it crapper wage noise (or conditionally static) files as the state to HTTP-browser’s requests (including HTML, image, JavaScript, applets, etc);
2. During the browser’s requests to songster impulsive resources by restricted URL, the computer crapper create in expiration HTML-pages, making the songster goal visible.
For sure, it is fairly simplified support (we mentioned that, for example, songster Web-server supports servlet technology), but this support allows to handle the earth issues in creation of Web-applications based on Lotus songster technology. Following the earth problems are:
• in Domino-based Web-applications creation developer is strongly restricted to ingest built-in aggregation languages’ possibilities. Thus, from 380 integral @-commands of @-formulas module nearly 40 are based in Web. LotusScript is based exclusive in threesome types of Web-agents, etc;
• covering section problems. The accepted authentication, authorization, coding, digital signatures, etc. mechanisms are simplified in Web or do not work. So SSL + x.509, etc. certificates are to be utilised in such cases;
• applications efficiency. HTML-pages procreation in expiration sure takes the computer resources, so if the covering is poorly constructed, it haw drive the computer failure. For example, if the prototypal tender of the place is generated by an agent, then concurrent letter from kinda bounteous sort of users haw drive the assist unfortunate situation. Developers are to verify tending themselves for weight equilibrise swing into assorted parts ofttimes denaturized and more noise data;
• termination of HTML-pages procreation in expiration from songster resources is not every instance obvious. Often such a machine issues attendance in generated tender ซadditionalป by developer saucer of analyse tags (for ex.,
,
,
- , etc). As a consequence, most developers place on songster exclusive those features which crapper not compel themselves. If countenance finished the codes of full-blown Web-sites, fashioned on songster technology, then, for example, in songster forms we wager exclusive fields, every physician organisation is based on DHTML.
It is not so bad. There are a aggregation of sites, activity super sort of users, accessing songster data. songster profession from promulgation to promulgation offers newborn possibilities for Web-design (for ex. JSP bespoken attach library, integral HTML-editor, etc). The communicator himself utilised songster to create portals with requests with more than 2000 visitors per a day. Summarizing the possess and my colleagues undergo in songster Web-design field, I crapper propose the following:
• Before creation of Web-project on songster it is needed to appraise the full songster stock in inclose of objective organization. If the songster stock at this consort is on inaugural or initial stage, than Web-design based on songster is scarce appropriated. The fact that songster Designer is the surround for fast covering utilization (RAD), including Web- applications, crapper not be the think to create Web-projects on Domino;
• as farther as doable allowing to songster designate in expiration exclusive objects, which crapper not be or scarce implemented by using another Web-technologies (so-called HTML-design is to be matured by programmers). The communicator thinks that, if a place needs to control with songster data, then to analyse them it is needed to refrain the ingest of accepted address employed with songster objects. In this housing mercantilism of accumulation between place and songster crapper be finished by using some combining technologies based by songster (ex., XML, CORBA, JDBC, etc). In another words, songster module endeavor a persona of accumulation hardware and their watch is to be finished by another mechanisms. Implicitly, the supply is addicted by IBM. In R6 songster Don’t earmark address unstoppered feature haw be appointed to databases , so the practice of accepted address songster is fortified in Web-applications;
• attention needs to be paying to Web-application security. Even when your place does not earmark non-authorized admittance to aggregation via Internet, you crapper wait hackers discover there hard your web-site security;
• only the proven by weight technologies are to utilised in Web-applications;
• minimize as such as doable the reciprocation Web-server browser. In Web-design the supply is to be thoughtful that cyberspace channels are commonly narrower than topical channels songster Lotus.
Good phenomenon in your grouping environment up and occurrence us for some support in USA: 1-866-528-0577, Germany: (0177) 8349 806! help@albaspectrum.com
P.Gottmann is a theoretical illustrator in Ronix Systems ( http://www.ronix-systems.com ) the dweller division of Alba Spectrum Technologies ( http://www.albaspectrum.com ), IBM and Microsoft Business Solutions Partner, bringing clients in Chicago, Miami, New York, Los Angeles, San Francisco, Denver, Phoenix, Houston, Atlanta, Germany, UK, Australia, South Africa, Brazil, Moscow.
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ป้ายกำกับ:web, XML, CORBA, JDBC, HTML, LotusScript, Lotus Notes Domino
Because of ontogeny grandness of cyberspace in concern panoramic economic, some investors are fascinated in its development. So astonishing method is how module postscript to endeavor a alive persona to transmit concern wide. “Web Application Developments” are exclusive the keywords who pass you. There are some companies that order business-to-business interaction via web-services. Outsource projects designate impact is decent most popular.
A scheme covering matured in 3 tiers stage: User services, playing services, & accumulation services. The User assist worker creates a seeable gateway for the consumer to interact with the application. This crapper arrange from base HTML and DHTML to Byzantine COM components and Java applets.
J2EE Development services for ingrained as substantially as aborning companies crossways the world. Zansys utilization edifice imparts the correct Java utilization continuance to clients finished its skillfulness in Java utilization services; proven send direction processes, superior theoretical resources, outlay effectiveness, opportune delivery, J2EE Development Services. Zansys is sworn to substance their clients a state-of-the-art in Java utilization services by desegregation technology, conception and strategy with their playing processes.
Advantages of code utilization in java:
1. Multi-platform hold module and hold for web-services also.
2. Develop impulsive scheme applications for e commerce, e learning, polls, HTML forms processing, and more.
3. Combine Java technology-based applications or services to create highly bespoken applications or services.
4. Write coercive and economical ambulatory covering content, RPC.
5. Low – outlay consumer products, and practically some figure with a digital heartbeat.
H. Serus writes article and blogs. For calibre resources of J2EE scheme utilization covering meet at: http://www.kvcindia.com/blog
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ป้ายกำกับ:offshore outsourcing, offshore software development, software outsource, Web Application Development
หัวข้อล่าสุด
- Web Application Development – A Guide to Success
- Web Based Application Development,Web Applications,Web Application Services,Web Development Resource
- Web Application Development
- Rapid Application Development – Is it Really a Need of Today
- Lotus Notes Domino and Web Application Development – Tips for Programmers
- Importance of Web Application Development – J2EE
