Architecture serves the full lifecycle of the software system to make it easy to understand, develop, test, deploy and operate. The O’Reilly book Software Architecture Patterns gives a simple but effective introduction to five fundamental architectures.

Facebook is a very profitable company with operating margins at 42%. While transiting into a privacy-centric super app, it has to face three challenges in three aspects: technology, economy and privacy & competition.

Over the past 25 years, unicorns have grown fast. Nevertheless, tech stars still do not have a path to high profits. Superstar firms have proved that wealth is made by huge markets, high profits and natural monopolies.

Content analysis and data mining of user tags are the cornerstones of the recommendation system. The content analysis derives intermedia data from raw articles and user behaviors. With content analysis, we are able to tag users, recommend and prepare content.

Motivation and incentives are at the core of performance management. Employee motivation primarily comes from two aspects: extrinsic and intrinsic incentives. Extrinsic rewards (monetary rewards) have a short-term effect and may not necessarily improve performance; fairness and consistency are also essential. Intrinsic rewards vary by individual and can be achieved through the following three methods: recognizing employees' work, providing decision-making authority, and offering challenges.

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Why Do We Need Such Frameworks?

In order to evaluate user satisfaction, machine learning models are implemented. These models observe and measure the reality by feature engineering and further reduce latencies by recall strategy.