Cedar vs. Dylan vs. Erlang vs. Java Comparison Chart

Cedar is an open source policy language and evaluation engine developed by AWS to facilitate fine-grained access control in applications. It enables developers to define clear and concise authorization policies, decoupling access control from application logic. Cedar supports common authorization models, including role-based access control and attribute-based access control, allowing for expressive and analyzable policy definitions. Its design emphasizes readability and performance, ensuring that policies are both easy to understand and efficient to enforce. By integrating Cedar, applications can make precise authorization decisions, enhancing security and maintainability. The policy structure is designed to be indexed for quick retrieval and to support fast and scalable real-time evaluation, with bounded latency. It enables analyzer tools capable of optimizing your policies and proving that your security model is what you believe it is.

Erlang is a programming language used to build massively scalable soft real-time systems with requirements on high availability. Some of its uses are in telecoms, banking, e-commerce, computer telephony and instant messaging. Erlang's runtime system has built-in support for concurrency, distribution and fault tolerance. OTP is set of Erlang libraries and design principles providing middle-ware to develop these systems. It includes its own distributed database, applications to interface towards other languages, debugging and release handling tools.