1. Non-obsolescence

CONTEXT

  • Formats like XML, XLS, XML-RPC, SOAP are being deprecated by app developers in favor of JSON, XLSX, REST, OpenAPI.
  • And they evolve (YAML, Graphene, etc.)
  • One day, we might have something else altogether.

DEFINITION

  • Non-obsolescence is the feature of data making old formats reusable as if they were new, without transforming them to new formats.
  • It has to do with representability of the functionality of old data.

TEST CONDITIONS

  • Suppose you have data like <hello>world</hello>. It is non-obsolescent, if there exists a header, that tells, how it can be understood as a functional map, so that it can be translated to other formats, like {"hello": "world"}.
  • In this case, it could be a header, such as <?xml version="1.0" encoding="UTF-8"?> telling the reader how to read it.

NOTE: While file extensions were originally used to represent data formats, they proved to be insufficient as generic formats evolved. One of the primary goals for metaformat is to create such a metaheader – a universal generalized header for all I/O needs of objects (old and new) with such header.

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