The paper introduces Pricing4SaaS, a model that aims to provide a unified representation of pricing structures in SaaS systems. The key points are:
SaaS systems often rely on dynamic pricing strategies and subscription models to meet diverse customer needs and provide a predictable revenue stream. This introduces complexity in managing the variability of pricing structures.
Pricing4SaaS is a generalized model that can represent the pricing of various SaaS systems. It defines key concepts like features, plans, add-ons, and subscriptions, and classifies features into different types (e.g., domain, integration, automation).
The model also defines usage limits, which can be renewable, non-renewable, response-driven, or time-driven, and allows for the extension of these limits through add-ons.
To complement the Pricing4SaaS model, the authors have developed Yaml4SaaS, a YAML-based syntax for serializing pricing specifications. They have used this syntax to model the pricing of 16 commercial SaaS products.
The authors also present a set of validation rules to ensure the consistency and completeness of pricing specifications, and discuss the development of a validation tool and a middleware component to manage pricing-driven adaptations in SaaS systems.
The ultimate goal is to elevate pricing schemes as a first-class consideration in the implementation of SaaS, enabling automated adaptation to pricing changes with minimal human intervention.
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arxiv.org
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