Jump to navigation. The term open source refers to something people can modify and share because its design is publicly accessible. The term originated in the context of software development to designate a specific approach to creating computer programs. Today, however, "open source" designates a broader set of values—what we call " the open source way.
Programmers who have access to a computer program's source code can improve that program by adding features to it or fixing parts that don't always work correctly. People call this kind of software "proprietary" or "closed source" software. Only the original authors of proprietary software can legally copy, inspect, and alter that software. And in order to use proprietary software, computer users must agree usually by signing a license displayed the first time they run this software that they will not do anything with the software that the software's authors have not expressly permitted.
Microsoft Office and Adobe Photoshop are examples of proprietary software. Open source software is different. Its authors make its source code available to others who would like to view that code, copy it, learn from it, alter it, or share it.
As they do with proprietary software, users must accept the terms of a license when they use open source software—but the legal terms of open source licenses differ dramatically from those of proprietary licenses. Open source licenses affect the way people can use, study, modify, and distribute software. In general, open source licenses grant computer users permission to use open source software for any purpose they wish.
Some open source licenses—what some people call "copyleft" licenses—stipulate that anyone who releases a modified open source program must also release the source code for that program alongside it.
Moreover, some open source licenses stipulate that anyone who alters and shares a program with others must also share that program's source code without charging a licensing fee for it. By design, open source software licenses promote collaboration and sharing because they permit other people to make modifications to source code and incorporate those changes into their own projects.
They encourage computer programmers to access, view, and modify open source software whenever they like, as long as they let others do the same when they share their work. It also enables users to add additional hardware or modify elements of the system to increase what a machine can do or to streamline it toward a single task.
A system or piece of software that is set and cannot be modified is known as using closed architecture but also can be called a proprietary system. One of the features of using open architecture is that the system or software that an end user receives can be seen more as a generic tool.
If the needs of a user or company change, then the hardware or software can be changed to remain relevant without the need to completely remove an entire system that is already in place. This organization includes all components, how they interact with each other, the environment in which they operate, and the principles used to design the software.
In many cases, it can also include the evolution of the software into the future. Software architecture is designed with a specific mission or missions in mind. That mission has to be accomplished without hindering the missions of other tools or devices. The behavior and structure of the software impact significant decisions, so they need to be appropriately rendered and built for the best possible results.
Software architecture in software engineering helps to expose the structure of a system while hiding some implementation details. Architecture focuses on relationships and how the elements and components interact with each other, as does software engineering. In fact, software architecture and software engineering often overlap. They are combined because many of the same rules govern both practices. The different sometimes comes when decisions are focused on software engineering and the software architecture follows.
It is important to note that all software architecture is engineering, but not all engineering is software architecture. The software architect is able to distinguish between what is just details in the software engineering and what is important to that internal structure. Currently, software architecture looms over software engineering, determining the direction of the designing and building of complex systems. Expert insights and strategies to address your priorities and solve your most pressing challenges.
January 14 p. January Register Now. January 18 a. January 18 p. Information Technology Gartner Glossary. Recommended Content for You Article.
0コメント