![[screenshot_880.png]] We already published 10+ articles related to MetaX now is the time to answer growing number of emerging questions by providing essential MetaX definition and observations for comparison purposes. ## What is MetaX (the formal definition) MetaX is Semantic Based MetaSystem Framework, philosophically based on [[World spheres]] (MetaSpheres) and Ecosystems inside. MetaX enables design and architecture of dynamic MetaSystems and their particles (MetaSources), semantically identified by external ontologies, their classes and can be optionally integrated with linked Open Data. ![[Pasted image 20230709092017.png]] MetaX is tightly integrated with Ecosystem Symbolism to support symbolic #visualization of complex ecosystem together with alternative artistic representation of distributed symbols sets. MetaX offers dynamically generated MetaNotation and integration with Internet of Things and Semantic Web. ## What is not MetaX, or don’t even mention it MetaX is not an Ontology Language nor Ontology itself. MetaX wasn’t developed for creation of new Ontologies, but for usage of existing Ontologies used for Entity Identification. ![[Pasted image 20230709092045.png]] MetaX is used for Definition of Ecosystem Architecture and Autonomous MetaSystems, not for reverse engineering or Analysis of Web Resources as other Languages and Ontologies. MetaX is not an application (or tool), it is a Methodology and Repository (service) integrated with other components. ## MetaX comparisons and observations ![[Pasted image 20230709092121.png]] 1.Ontologies represents static and declarative knowledge about a domain of expertise. They are static. MetaX allows definition of **dynamic Ecosystems** without exact definition of newly “created” entities. 2.Classes in DAML [1] & Other Ontologies are creating structure of Ontology. MetaX is not Focused on Ontology Classes, it just uses **SemanticID** (This could be Class ID). We can also apply any data framework inside MetaX – we just need to add semantically based external Identification of entities. 3.In DAML [1] & Other Ontologies, relationships between classes and objects are defined by **property cardinality** . In MetaX, Relationship is defined by Open & Close Interfaces, Connections, Channels, Entity Levels and Attributes. 4.Properties or Attributes in MetaX are not necessary connected to classes or properties specified in referenced external ontology. They are used solely for architecture and description of particular MetaSystem. Attribute level of detail is directly aligned with **purpose** of particular MetaSystem and Symbolic Language Level (InfoSymbolism). 5.The over-reliance on inheritance for combining different aspects can lead to very general and not necessary beneficial - gigantic ontologies. MetaX is not plagued by this problem; it is possible to define just what is necessary for particular MetaSystem because it defines just entities (not classes) on **abstraction level** necessary for particular audience or architecture phase. This shows one of the strongest advantage of MetaX and confirms it’s universal applicability across distributed and local systems. 6.One of the biggest restrictions in other meta models is the fact that an element can be the instance of "**one and only one**" meta class – which is determined at he time of element creation. This behavior is caused by the “class” nature of every element. In MetaX, we can change each entity definition anytime, simple by changing semantic ID of particular entity. In case we are talking about system or ecosystem (more entities inside one entity), each entity can have different semantic id, but their semantic ID’s are not restricted by semantic ontology (classes) , only by abstraction levels (hierarchy of abstractions). 7.MetaX contains ecosystem structure (MetaSystem) described by MetaData. MetaX also also contains **instances** (live data), so it’s not just topology defined by OWL (instance in OWL is object only, it’s not alive) with RDF description of relations; but it’s also dedicated to execution, controlling and monitoring (status updates, creation of new entities etc.) with live instances of entities and ecosystems constructed from MetaSystem definition. In other Words, repository of MetaX has MetaSystem Metadata separated from instances (live instances of Ecosystem). 8.Finally, major difference in MetaX modeling is that properties can have an **independent existence** because every property is identified by semantic ID and entities doesn’t own properties (they are just referenced). --- Hopefully, explanations above answered some of the questions related to MetaX definition and comparison to (not) everything you can find out there (beware, the web is a wild place). ## References [1] Wikipedia; Definitions ## Related to [[MetaX Semantic Model]] [[MetaX - Semantic Agents]] [[MetaX - Semantic Database]] [[MetaX Use Case - The bucket]] [[Meta Language Categorization]] [[MetaX Models - From vision to execution]] [[MetaSystem Distribution and Integration]] [[MetaSystem Design - From Concept to Context]]