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Pool Architecture for Saas is inspired by cell-based architecture, it split services per function and scale only specific features. It works especially well for B2C where traffic is uniformly spread across users. B2B can face a different type of scaling issue where only one user is scaling. Pool architecture is a simpler yet powerful solution, used both by GAFA and fast-growing startups. The idea behind cell architecture is to split your system into cells: “ A collection of components, grouped from design and implementation into deployment”