# Rethinking the Next-gen Analytics Web App at trivago

DevFeed: [Rethinking the Next-gen Analytics Web App at trivago](<https://devfeed.tech/articles/rethinking-the-next-gen-analytics-web-app-at-trivago-28006.md>)

Original publisher: [Read original article](<https://tech.trivago.com/post/2021-02-09-rethinknextgenanalyticswebappattrivago/>)

Author: Daw Chih Liou

Published: 2021-02-09T00:00:00Z

Content type: article

Language: en

Sources: [Trivago](<https://devfeed.tech/sources/trivago.md>)

Topics: [web applications](<https://devfeed.tech/topics/web-applications.md>), [Front end](<https://devfeed.tech/topics/frontend.md>), [jQuery](<https://devfeed.tech/topics/jquery.md>), [legacy](<https://devfeed.tech/topics/legacy.md>), [A/B Testing](<https://devfeed.tech/topics/a-b-testing.md>), [User Experience](<https://devfeed.tech/topics/user-experience.md>)

Tags: [a-b-testing](<https://devfeed.tech/tags/a-b-testing.md>), [analytics](<https://devfeed.tech/tags/analytics.md>), [backend](<https://devfeed.tech/tags/backend.md>), [frontend](<https://devfeed.tech/tags/frontend.md>), [legacy-application](<https://devfeed.tech/tags/legacy-application.md>), [legacy-code](<https://devfeed.tech/tags/legacy-code.md>), [user-experience](<https://devfeed.tech/tags/user-experience.md>), [web](<https://devfeed.tech/tags/web.md>)

## AI overview

trivago's Frontend Engineering team describes rebuilding its nearly decade-old in-house Business Intelligence web application for analytics and A/B testing. The article explains the legacy system's maintenance, testing, data-flow, UI, and design-system challenges, and reports that the revamped application became more reliable, user-friendly, and scalable while the legacy application was retired.

## Source excerpt

After almost a decade, we decided to rebuild our in-house Business Intelligence web application to better support the organization. It is always challenging to replace software with a long history and a high degree of complexity. Nevertheless, we successfully completed the project because we fundamentally challenged and re-thought all aspects of the project.