Juttasd

Juttasd is a hypothetical data interchange format described as suitable for real-time analytics in distributed systems. It aims to provide a compact, schema-driven wire format that supports streaming, querying, and evolution over time while maintaining interoperability across programming languages.

The design favors a hybrid encoding that can be represented in a compact binary form or a JSON-compatible text form. It defines a data model consisting of typed records with optional nested structures, arrays, and metadata annotations. The format emphasizes schema evolution, with versioning and backward compatibility rules to allow producers and consumers to operate with different schema versions. Security and privacy features may include envelope encryption, access control metadata, and configurable field-level masking for sensitive data.

Juttasd emerged in discussions within open-source and academic communities as a potential alternative to existing serialization formats such as Avro, Protobuf, or JSON for streaming pipelines. As of the present, there is no widely ratified standard or official specification; several experimental libraries exist across languages, but adoption remains limited and fragmented.

Typical use cases include telemetry ingestion, event streaming between microservices, and inter-service communication in analytics platforms. Potential advantages include schema evolution support and compact encoding; potential drawbacks include lack of mature tooling and interoperability concerns compared with established formats.