The ISO/IEC 9126 software quality model has three layers: quality characteristics, sub-characteristics, and metrics.
（1）Functionality（功能性）
A set of attributes related to the existence of a set of functions and their specified properties. The functions are those that satisfy stated or implied needs.
- Suitability（适合性）
: Software attributes related to the presence and appropriateness of a set of functions for specified tasks. - Accurateness（准确性）
: Software attributes related to the provision of correct or agreed results or effects. - Interoperability（互用性）
: Software attributes related to its ability to interact with one or more specified systems. - Compliance（依从性）
: Software attributes that make the software adhere to relevant standards, conventions, regulations and similar provisions. - Security（安全性）
: Software attributes related to the ability to prevent unauthorized or accidental access to programs and data.
（2）Reliability（可靠性）
A set of attributes related to the ability of software to maintain its level of performance under stated conditions for a stated period of time.
- Maturity（成熟性）
: Software attributes related to the frequency of failure caused by software faults. - Fault tolerance（容错性）
: Software attributes related to the ability to maintain specified performance levels in the event of software faults or violation of specified interfaces. - Recoverability（易恢复性）
: Software attributes related to the ability to re-establish performance levels and recover data directly affected after a failure, as well as the time and effort required to achieve this.
（3）Usability（易使用性）
A set of attributes related to the effort required for use, and to the individual assessment of such use by a stated or implied set of users.
- Understandability（易理解性）
: Software attributes related to the effort expended by the user to understand logical concepts and their application. - Learnability（易学性）
: Software attributes related to the effort expended by the user to learn its application (such as operation control, input and output). - Operability（易操作性）
: Software attributes related to the effort expended by the user for operation and operation control.
（4）Efficiency（效率）
A set of attributes related to the relationship between the performance level of the software and the amount of resources used under stated conditions.
- Time behavior（时间特性）
: Software attributes related to response and processing times and throughput rates when the software performs its functions. - Resource behavior（资源特性）
: Software attributes related to the amount of resources used and the duration of such use when the software performs its functions.
（5）Maintainability（可维护性）
A set of attributes related to the effort required to make specified modifications.
- Analyzability（易分析性）
: Software attributes related to the effort required to diagnose defects or causes of failure, or to identify parts to be modified. - Changeability（易改变性）
: Software attributes related to the effort required to perform modifications, fault correction or adaptation to environmental changes. - Stability（稳定性）
: Software attributes related to the risk of unexpected effects caused by modifications. - Testability（易测试性）
: Software attributes related to the effort required to validate modified software.
（6）Portability（可移植性）
A set of attributes related to the ability of the software to be transferred from one environment to another.
- Adaptability（适应性）
: Software attributes related to the ability of the software to adapt to different specified environments without additional modification. - Installability（易安装性）
: Software attributes related to the effort required to install the software in a specified environment. - Conformance（一致性）
: Software attributes that make the software comply with standards or conventions related to portability. - Replaceability（易替换性）
: Software attributes related to the ability and effort to replace other specified software in its environment.
McCall Software Quality Model（McCall 软件质量模型）
The McCall software quality model defines 11 quality characteristics from three perspectives: product operation, product revision, and product transition. McCall also proposed a three-layer model framework: the first layer is quality characteristics, the second layer is evaluation criteria, and the third layer is metrics.
Product operation（产品运行）
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Correctness（正确性） -
Efficiency（效率） -
Reliability（可靠性） -
Integrity（完整性） -
Usability（易使用性）
Product revision（产品修正）
-
Maintainability（可维护性） -
Flexibility（灵活性） -
Testability（可测试性）
Product transition（产品转移）
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Portability（可移植性） -
Reusability（复用性） -
Interoperability（互用性）
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人人皆为创造者 每个人都是使用者，也是创造者；是数字世界的消费者，更是价值的生产者与分享者。在智能时代的浪潮里，单打独斗的发展模式早已落幕，唯有开放连接、创意共创、利益共享，才能让个体价值汇聚成生态合力，让技术与创意双向奔赴，实现平台与伙伴的快速成长、共赢致远。
原创应该获得永久分成 原创创意共创、永久收益分成，是东方仙盟始终坚守的核心理念。我们坚信，每一份原创智慧都值得被尊重与回馈，以永久分成锚定共创初心，让创意者长期享有价值红利，携手万千伙伴向着科技星辰大海笃定前行，拥抱硅基 生命与数字智能交融的未来，共筑跨越时代的数字文明共同体。
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东方仙盟
东方仙盟：拥抱知识开源，共筑数字新生态
在全球化与数字化浪潮中，东方仙盟始终秉持开放协作、知识共享的理念，积极拥抱开源技术与开放标准。我们相信，唯有打破技术壁垒、汇聚全球智慧，才能真正推动行业的可持续发展。
开源赋能中小商户：通过将前端异常检测、跨系统数据互联等核心能力开源化，东方仙盟为全球中小商户提供了低成本、高可靠的技术解决方案，让更多商家能够平等享受数字转型的红利。共建行业标准：我们积极参与国际技术社区，与全球开发者、合作伙伴共同制定开放协议与技术规范，推动跨境零售、文旅、餐饮等多业态的系统互联互通，构建更加公平、高效的数字生态。知识普惠，共促发展：通过开源社区、技术文档与培训体系，东方仙盟致力于将前沿技术转化为可落地的行业实践，赋能全球合作伙伴，共同培育创新人才，推动数字经济 的普惠式增长
阿雪技术观
在科技发展浪潮中，我们不妨积极投身技术共享。不满足于做受益者，更要主动担当贡献者。无论是分享代码、撰写技术博客，还是参与开源项目维护改进，每一个微小举动都可能蕴含推动技术进步的巨大能量。东方仙盟是汇聚力量的天地，我们携手在此探索硅基生命，为科技进步添砖加瓦。
Hey folks, in this wild tech - driven world, why not dive headfirst into the whole tech - sharing scene? Don't just be the one reaping all the benefits; step up and be a contributor too. Whether you're tossing out your code snippets, hammering out some tech blogs, or getting your hands dirty with maintaining and sprucing up open - source projects, every little thing you do might just end up being a massive force that pushes tech forward. And guess what? The Eastern FairyAlliance is this awesome place where we all come together. We're gonna team up and explore the whole silicon - based life thing, and in the process, we'll be fueling the growth of technology.
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