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Wednesday, June 19, 2019

How to develop computer software

How to develop computer software You may have a great application idea, but don't know how to make it a reality? Learning a program development language takes time, but many successful programs are self-learning. With the basics in mind, you can write simple programs in a fraction of the time. Developing complex programs can be more difficult, but as long as you practice, you will one day realize your vision.

How to develop computer software

Part-1: Learning a programming language

1. Identify the programming language you are learning first. If you haven't written the code, you can choose a programming language for beginners, but the language needs to be powerful enough to help you achieve your vision. There are more than a dozen languages ​​to choose from, all of which have their own areas and characteristics. The most well-known languages ​​for beginners include.

  • C: One of the oldest computer languages, but still widely used. C language can also help you learn C++ and Java further in the future.
  • C++: One of the most popular languages ​​today, especially in the software development arena. Learning C++ takes a long time, and proficient in the language takes longer, but once you master the language, you have countless opportunities.
  • Java: Another very popular language that can be used on almost any operating system.
  • Python: This is a relatively simple language, and you can master the basics in just a few days. But the language is also very powerful and has a wide range of applications on servers and websites.

How to develop computer software

2. Set up the development environment. Before writing the code, you need to prepare a few tools. This software is called "development environments." Depending on the programming language, the development environment you need will be different.

  • Code Editor: Almost all program developers need to install a code editor. Although you can write code using a simple text editor such as NotePad, the code editor highlights the syntax structure and automates many repetitive programming tasks, making the program development process easier and faster. Tools such as Notepad++, TextMate, and JEdit are very well-known code editors.
  • Compiler or interpreter: Many languages, including C and Java, need to be compiled before they can be coded. So you need to install the compiler for the language on your computer. Most compilers also have the ability to report bugs.
  • IDE (Integrated Development Environment): Some programming languages ​​integrate code editors, compilers, and error traps into one application called the IDE. You can usually download the IDE software from the programming language website.

How to develop computer software

3. Learn the tutorial. If you have never been exposed to program development, you need to start with the basics. You can find some tutorials online to help you understand the basic concepts of the chosen language. These tutorials also introduce syntax, variables, functions, and conditional statements, and how to combine these knowledge points.

  • There are many places on the web that offer high-quality tutorials such as Udemy, Khan Academy, Codecademy and Code.org. 

How to develop computer software


4. Download some examples and open source applications. By reading and modifying the sample code, you can learn to use the programming language to complete the program functions. There are a lot of examples and open source programs on the web, you can not only access the code but also compile and run the program. In the beginning, you can start with a small program related to your ideal program type.

How to develop computer software

5. Write a simple program to learn the basics. Start writing your own code from the ground up. You can write some simple input and output programs. Practice the programming skills required in complex programs, such as variables and functions. You can also try to set a breakpoint in your own program.

How to develop computer software

6. Join the programming development community. It is a rare opportunity to discuss your own problems with experienced developers. You can also find many like-minded developers on various websites and communities. You can join a community related to your own language and see all the relevant content. Don't be afraid to ask questions, but try to solve the problem yourself before asking questions.

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7. It takes a certain amount of time to learn any programming language. The first time you sit in front of the keyboard, you can't write a complete program (complex program). Efficient use of programming languages ​​takes time, but if you can practice hard, you can increase programming speed and efficiency in a short amount of time.

How to develop computer software

Part-2: Design procedure

1. Write a basic design document. Before writing a program, you can write some documentation about the development process. The design documentation needs to list the program goals and describe the program features in detail. These documents can help you focus on developing the main features of the program.

  • The design documentation needs to describe all of the features included in the program and how to implement them.
  • Designing a document requires consideration of the user experience process and how the user can use the program to accomplish various tasks.

How to develop computer software

2. use sketches to draw parts of the program. A schematic diagram of the program is shown to show how the user moves from one part to another. A simple flow chart can meet the needs of the basic program.

How to develop computer software

3. Determine the underlying structure of the program you want to write. The goal of the program will determine the underlying structure of your choice. If you know which of the following is your own program structure, you can focus more on program development.

How to develop computer software

4. Start with the "1-2-3" structure program. This is the simplest program structure that you can use to get familiar with programming languages. To put it simply, after the program of the 1-2-3 structure is run, the user is first asked about the input data and then the calculation result is displayed. After the calculation results are displayed, the program ends.

  • Once you are familiar with the 1-2-3 structure program, you can learn the REPL (Read-Execute-Print Cycle) structure. In this structure, after the output is displayed, the program will return to the first step to repeat the execution.
  • Consider the pipeline structure program. This type of program can continuously convert user input data. This structure is suitable for programs that require only a small amount of user interaction, such as an RSS reader. This type of program consists of a series of classes within a loop.
How to develop computer software

Part-3: Create a program prototype

1. Focus on one feature. Prototypes generally focus on testing the main features of the program. For example, if you want to create a personal organizer, the prototype might be a calendar and add an event feature.

How to develop computer software

2. Iterate over and over until the function is implemented. The prototype should be able to run independently. It's the basis for all the other features, so you need to make sure it's working. You can continually optimize your program as iterate your functions, making it run smoothly and efficiently.

  • You can quickly modify the prototype and test the modified program.
  • You can ask others to test your prototype to make sure it works.
  • When you create a program prototype, you can continually modify it.

How to develop computer software

3. Don't be afraid to drop the prototype. Because the purpose of the prototype is for experiments. Prototypes allow you to test whether the required functionality can be implemented before writing a complete program. The prototype is destined to be a test, so don't be afraid to discard it and return to the artboard to redesign. Prototypes can reduce many of the difficulties in subsequent work.

How to develop computer software

Part-4:  Programming

1. Write pseudocode as the basis for the program. The pseudo code can determine the project structure and serve as the basis for detailed coding. Pseudocode is similar to program code, but cannot be compiled into a program. Pseudocode is easy to read, so program developers can use pseudocode to think about the problems encountered in actual coding.

  • Pseudocode has the same syntax as a programming language and is identical in structure to a normal programming language.

How to develop computer software

2. Expand your prototype. You can use existing prototypes as a basis to further program or integrate prototype code into a complete program structure. Either way, you need to take advantage of the prototype and then develop it further.

How to develop computer software

3. Start writing code. This is the core part of the entire development process. Writing code generally takes the most time and requires many compilations and tests to finally ensure that the code runs correctly. If you develop a program in a team, everyone can work based on the pseudo code you created earlier.

How to develop computer software

4. Add a comment to all the code. Add comments to all code using the annotation features of the programming language. Not only can annotations help others understand code functionality, but they can also help you remember your code content so you can understand the code content when you look at it later.

How to develop computer software

Part-5: Test program

1. Test each new feature. New features added need to be compiled and tested. If more people test the program, you can find out the flaws in the program. You need to inform all testers that the program is still in beta and they may encounter serious errors in the test.

  • This test page is often referred to as an Alpha test.

How to develop computer software

2. The test includes a fully functional program. After all the features of the program have been developed, you will need to conduct a round of intensive testing that covers every aspect of the program. This round of testing requires the most testers to attend.

  • This test is generally referred to as a beta test.

How to develop computer software

3. Test candidate release versions. You can still modify the program and add new resources, but be sure to thoroughly test the release version.

How to develop computer software

Part-6: Create a resource

1. Determine the resources required for the program. The characteristics of the program itself will determine the required resources. Do you need homemade music? illustration? Other content? Before you publish the program, you must understand the answers to these questions.

How to develop computer software

2. Consider the way of outsourcing. If you need a lot of resources but don't have enough manpower to create, you can consider outsourcing resource creation. There may be many freelancers who want to help you with the project.

How to develop computer software

3. Integration of resources. You want to make sure that the resources don't affect the program's functionality, and there's no extra useless content. Unless the resources are directly related to the program, resource integration is usually required at the final stage of development. For example, many computer games need to integrate resources at an early stage.

How to develop computer software

Part-7:  Release program

1. Consider publishing your program as open source. This way you run other people to view your code and improve the program. The open source model is based on a community-based publishing method, so it's hard to get revenue. This mode also has its own advantages, other programs may be interested in your program, making the program widely used.

How to develop computer software

2. Create an online store. If you want to sell your own software, you can create a store on your own website so that customers can download and purchase the software. Paid users generally want the software they purchase to be fully functional and without obvious defects.

  • Depending on the type of software, you can also choose from a variety of service providers to sell the software.

How to develop computer software

3. Continuous support for released software. After the software is released, you will most likely receive an error report from the new user. You can categorize the errors based on their severity and then start solving the problem. After the bug is fixed, you can either release a new version of the software or provide a patch to patch some older versions of the program.

  • If you can provide good after-sales support services, you will win the favor of customers and be promoted by word of mouth.

How to develop computer software

4. Advertise your own software. Users must first know your software before considering it. You can provide review articles to relevant software sites, provide free-to-use versions of software, or write media press releases, and, in a nutshell, use a variety of methods to promote your software to the world.

How to develop computer software

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