دانلود کتاب قابلیت اطمینان دیجیتال سازمانی – ایجاد امنیت، قابلیت استفاده و اعتماد دیجیتال

Reliability engineering in modern computing relates to the practice of ensuring the software provides a dependable experience to the customer using the product. And often, this practice in the software world can be referred to as Site Reliability Engineering (SRE) as both focus on overall system reliability and share common goals. As large-scale systems stabilize their functionality and the focus changes to operational readiness and reliability, it makes sense to focus on improving the code and automation to free up time for the enterprises to explore new features. So, it is essential for organizations to care about reliability as a feature and the engineers embrace digital resiliency as a goal. This can include techniques, methods, and principles that drive the four major technical aspects, namely, performance, availability, resiliency, and scalability (PARS principles) of software reliability: -Performance: This relates to the quickness of the system and its response time including any latency across the networks. A good performance leaves the customers and users with a high satisfaction score and avoids frustration. -Availability: It describes the uptime of a system and its availability for the customers to access and use it without failures as expected. -Resiliency: Resiliency is the system’s ability to recover from failures or disruptions with least possible impact to the customers. This is typically handled by building highly available systems, embracing redundancy, predicting the point of failures, and proactively addressing the issues in the code. -Scalability: Scalability relates to the ability to handle workloads dynamically by provisioning the appropriate infrastructure capacity. Scalability ensures the systems are adequately designed to handle more users, data, or requests without compromising on the performance.