Component-Based Development

Research on Software Development Method Based on Component

The rapid development of computer hardware technology has led to the rapid assembly of various hardware, which can quickly assemble a computer conveniently and cost-effectively. But most software assembly generally wastes a lot of unnecessary time, or the cost exceeds the budget. In recent years, the technology of software development has become increasingly mature. Component-Based Development (CBD) was developed from the first and second-generation servers, which has significantly alleviated the passive situation in the software development process, allowing developers to manually assemble components and install them into applications. Bring new vitality to the software assembly industry. There is an essential difference between CBD and object-oriented. As a new method of distributed computing, CBD can improve the reusability of software and get rid of the small workshop production mode of software. CBD is necessary in the software development process. Links and inevitable consequences.

1. Related concepts based on component development

A physical package composed of some object classes is called a component. A component has independent transferability and is a single source of software that can be replaced in software development. It encapsulates design decisions and combines with other components. Groups have specific functions and can cross process boundaries to realize network, language, application and development. 2.2 CBDCBD is a technology that utilizes reusable software components to build applications. The three parts that make up a component are the description of the component, the implementation design of how the component works, and the transfer method developed on the specified platform. The basic activities of CBD include collecting components, improving the quality of assembly and adapting components to each other, and finally assembling components and updating components. The basic elements of a CBD tool are a component repository, a component modeling tool, a component search tool, and an operational system. The characteristics of CBD Compared with structured software development techniques, the characteristics of CBD are significant:

First of all, CBD has a high degree of interoperability and can realize real software reuse. Components are some common or specific modules that can interoperate and be utilized, and developers can use them to form suitable systems without headaches. Second, the interface of CBD is reliable. A component's interface is immutable and cannot be modified once published. This also shows that once the user of the component obtains a certain service from a certain interface, he can always obtain the service from this interface. After encapsulation of general components, reasonable and consistent services can only be provided through defined interfaces. This stability of interface definition enables client application developers to develop robust applications. At the same time, CBD also has expandable services and strong infrastructure.

2. The main research focus of CBD

At present, the research focus on CBD is mainly divided into three directions, component software, the process of building software, knowledge-based methods and software construction based on architecture.

2.1 Component software

Component software referred to here refers to a series of activities that realize the interconnection and application of components through object and document models. For example, Microsoft's COM and OMG belong to a kind of object model, and they describe how to communicate between objects regardless of the language, address space, computer type and operating system boundary. Document models such as OLE2 can provide users with different data types and unified management of these data applications. This technology produces a new visual programming tool, which changes the programmer's method and process of information expression, making it easier for users to understand and accept.

2.2 Specification and Knowledge-Based Approaches for Component Software

Solving the problem of component standardization is the normative task of component software. At present, it seems that distributed object standards are distributed in various forms, and the components themselves do not have a unified and clear definition, which increases the difficulty of assembling heterogeneous standard components. Knowledge-based method research is mainly carried out in academia. In order to realize the automation of software system process on the basis of domain knowledge, the assembly process between groups is described through a standardized method.

2.3 Architecture-based software construction

This direction is to provide system developers with architectures and reference architectures for domain-specific applications. Component-based applications are not only a simple patchwork of some common parts, but also built for some specific fields, so a system is needed to assemble components together to achieve interoperability between components, thereby improving work efficiency. Therefore, the research on the architecture of different fields becomes very important, which has a direct and critical impact on the treatment of components and the degree of reuse of components. The reference architecture describes the relationship between components and specific domains, and the architecture provides an organized environment for operating objects. This enables design and consistency when building a series of components. In the process of component software, developers do not need to clarify and understand the internal working and operating principles of the software, but only need to pay attention to the external use. This is a kind of black box software reuse. Architecture achieves software reuse through inheritance, which is a white-box software reuse, and there is an essential difference between the two. Experts who study architecture suggest to gradually transition from white box to black box, and now the use of architecture is very common.

epilogue

In the initial stage of CBD, it is necessary to write basic program components, which cost workers a lot of time, money and energy. Therefore, the reuse rate of components is gradually increased in the later stage. The advantage is that it reduces production and development costs and reduces labor force. The work efficiency is improved, and at the same time, when modifying the system, only some related components need to be modified without affecting the use of other parts. Simultaneous components can realize the dream of parallel development. After users gradually deepen their understanding of distributed computing, they begin to realize that the system is a loosely combined service somewhere in a space, and they do not need to know where the information exists when obtaining services. At the same time, when the host-based system performs calculations such as servers, an application program is no longer monolithic, but separate and mutual. With the gradual maturity and development of software development technology, more attention has been paid to CBD technology. As a developer like Ah Jian, it is indispensable to master and pay attention to CBD. For the problems encountered in software development, including software quality, development The speed of software and the cost of development can be found through CBD technology. Although the road to CBD is bumpy, it is undeniable that CBD technology has become an inevitable trend of mutual understanding and development, and has a good development prospect. .

The above is the component-based software development method introduced by Shenzhen Zuchuang Microelectronics Co., Ltd. for you. If you have software and hardware function development needs for smart electronic products, you can rest assured to entrust them to us. We have rich experience in customized development of electronic products, and can evaluate the development cycle and IC price as soon as possible, and can also calculate PCBA quotations. We are a number of chip agents at home and abroad: Songhan, Yingguang, Jieli, Ankai, Quanzhi, realtek, with MCU, voice IC, Bluetooth IC and module, wifi module. We have hardware design and software development capabilities. Covering circuit design, PCB design, single-chip microcomputer development, software custom development, APP custom development, WeChat official account development, voice recognition technology, Bluetooth wifi development, etc. It can also undertake the research and development of smart electronic products, the design of household appliances, the development of beauty equipment, the development of Internet of Things applications, the design of smart home solutions, the development of TWS earphones, the development of Bluetooth earphone speakers, the development of children's toys, and the research and development of electronic education products.