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This article focuses on "what are the steps for the development of Web applications?" friends who are interested may wish to take a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn "what are the steps for developing Web applications?"

The development steps of Web application

Now it has entered the Internet era with the rapid development of web2.0, and all kinds of Internet Web applications are springing up like bamboo shoots after a spring rain. So as a Web developer, how to develop a good Web application? There is no simple answer to this question, and even those educational institutions may not know it clearly. So, like most web developers in this field, we only learn this by doing and experimenting. No one tells us how to do it. We start by making something for ourselves, and learning how to develop web applications is a by-product of the process. This is a very effective way to learn any language.

The difference between Web applications and websites

First of all, I would like to make it clear that developing a web application is not the same as developing a website. Although there are great similarities in general, the time required to develop them varies greatly. So what's the difference between web applications and websites? Usually, Wikipedia can help us explain this problem. Let's take a look at how Wikipedia defines applications:

Application software, often referred to as application, refers to computer software designed to help users perform one or more related specific tasks. Enterprise software, accounting software, office suite, drawing software, media player and so on all belong to this kind of software.

In contrast to application software are system software and middleware, which manage computer performance and how to integrate with computers, but usually these tasks are not directly reflected in the execution of tasks that benefit users. For example, in an inappropriate physical analogy, the relationship between application software and system software is like the relationship between a light bulb and a power plant. The power plant (system software) only generates electricity. It has no real use of its own, unless an application such as a light bulb can be used to provide services to users.

The development process of Web application

Now that the features are clear, we can begin to define the entire process of developing a web application. Of course, it depends on the size of the project, and some of the steps in the process may be small and can be done in your mind, but it's always good to know the whole thing. At the same time, it is important for you to understand that this article does not describe each step in depth.

Step 1: analyze

The first step in developing a web application is to analyze your requirements. At this point, you should define a list of features that your application should provide as comprehensive as possible. If you are doing this for a client, you need to understand what they want (make sure that each of you knows what the other is talking about). From your discussion, you can summarize the requirements and software specifications. Even if you are developing for yourself, I suggest you write down the features you want this web application to do.

Step 2: design

Once you've figured out what the web application needs to do, you can start designing. This step is usually done over and over again, each time refining the design a little bit. The first thing you need to do is to draw a page flow chart (on paper, or use software tools, as you like. I like to use paper so that I can make faster changes. The page flowchart is usually an abstract black-and-white drawing that shows the web application you are going to implement (you can add some colors, but try to keep it simple).

This step will let you know what your application will look like in the end. Contrary to what 37signals advocates, I suggest using some words to describe it in moderation. When I think of a good idea, or when I think about how something should be done, I mark it on paper (for example, I should change or hide another element when I click this button, which I will write on the flowchart).

When you are satisfied with the sketch, you can start making a solid model.

The solid model is still some patterns, but there are colors and details. The final entity model should look like a screenshot of the web application you are going to implement. If you develop for a client, he will look at these things and give you his approval. However, many people like to skip this step (most of them are non-designers) and they like to go straight to the web prototype.

Prototypes are developed in HTML and rendered in CSS (sometimes available). This step is very important because everything here can be used in your final application. If allowed, do some usability testing on your prototype, which will help you avoid a lot of mistakes in the long run.

At the end of this step, you basically know how your web applications are organized together. What is on the login page and how the user moves from the home page to each page.

Step 3: implement and select a framework

Now that we know what we are going to develop, we have to do it. There's a lot of work in this part, and you spend most of your time on it. The first decision you need to make is how to proceed, what technology to use, and what framework to use. You have a lot of choices, and you need to choose one that suits you. Here is a list of the most commonly used frameworks:

ASP.NET

The framework of any process on PHP

Python with Django

Ruby on Rails

There is no clear standard to say which framework is the best. They are all different, and each has its own strengths. The most important thing is to know that any one of them will allow you to develop useful web applications.

Exploiting

Once you know how to develop, get out of your arms and go dry. This development work can be seen as having a lot of blocks, but in the final analysis, it's all standard programming activity. In the background, you create classes, objects, services, procedures, and persistence layers to save these objects to the database. The background is the core of the whole application, and it is no different from ordinary programming for any application. Then there is the development of the foreground, and the code you write now is the real interface for the user to use. You integrate the background program and the prototype interface, and integrate all the parts of the system. You can also use JavaScript to implement some cool little functions that you can think of in the development process.

Again, there are many ways to implement a daemon. It is recommended that you read the materials related to the framework of your choice and figure out how to achieve this part of the work. Usually, this knowledge is related to object-oriented programming, but some frameworks are slowly moving towards domain-driven design.

Step 4: polish and polish

Now the application has been developed and the independent modules have been integrated. You need to test to make sure that the requirements and software specifications you defined in step 1 are implemented (this issue should be kept in mind throughout your development process). You need to make sure that stupid users don't break your application by trying to do something you haven't done yet (see white box and black box tests). You also need to make sure that your program runs correctly in a variety of browsers (hopefully not IE6).

Now is also the time for you to make some small adjustments to improve the feel of your application and make it perfect.

Step 5: release and follow-up

The final step (but not the end of it) is to release your app so that users can actually use it (if the app is a public development app, don't forget to do the news). If you like, release a Beta version first, so that only a small number of users can find major problems in your application (because you are sure to have bug in your application), and they will help you improve the quality of your program. Don't be busy adding features, focus on making your current program stable.

After the beta phase, your program has become very solid, listen to user feedback, try your own application, and you can start to think about how to make the application better. Find out the discord and eliminate it. Each iteration will go through the five steps mentioned above, but as I said at first, you now have a running application, and you can easily complete these steps directly in your mind. Go straight to testing your functionality in the code.

At this point, I believe you have a deeper understanding of "what are the development steps of Web applications?" you might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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