This website provides

- A methodology for Information Integration and Information Exchange

- A methodology for Semantic Information Modeling

- Information on the definition and use of Formal English.

Information Integration can cover for example:

• Project, process or facility data and documents from different sources, possibly while remaining distributed,
• Knowledge about products and processes in your designs and operations systems,
• Product and process requirements, standards and rules & regulations as well as product and process data,
• Product specifications in product catalogs,

It also covers

• Exchange of data between systems of various parties, by talking the same language,
• Storage of information and documents as product models in universal databases,
• Searching for information, knowledge and documents in large, complex or distributed repositories,

Topics addressed are:

• The definition of Formal English and Formal Dutch and their Dictionaries-Taxonomies, grammar (syntax) and semantics.
• Modeling and integration of knowledge and information using the Gellish Semantic Information Modeling Methodology.
• Implementation of Universal Databases.
• Implementation of system independent Data Exchange Messaging between application systems.
• Application of the system independent Gellish Formal English (as well as Gellish Formeel Nederlands or any other formalized natural language)
• Development of Domain Dictionaries-Taxonomies, Knowledge Models and Requirement Models (Ontologies) that are computer interpretable and making knowledge and information accessible via the concepts in those dictionaries.

• A wiki guide on Semantic Modeling in Formal English according to the Gellish Modeling Methodology.

Available products:

• Formal English Dictionary-Taxonomy - Upper ontology section (TOPini - 2012 version), the old 2008 version is free available via the download area.
• Formal English domain dictionaries-taxonomies (edition 2012); the old 2008 versions are free available via the download area.
• Guides on the Gellish Semantic Modeling Methodology; A free introduction to the methodology is also available.
  
• The Definition of Universal Semantic Databases and Data Exchange Messages (Gellish ExpressionTables) which includes
  the definition of the Gellish Set of Accessory Facts. See also an accompanying XML Schema.
  
• The Universal Semantic Database API specification.
• An example of a Semantic Information Model of a Road in Gellish Formal English.
• Gellish, a Generic Extensible Ontological Language - Design and Application of a Universal Data Structure (2005); PhD, Delft University of Technology.
  

The webshop offers:

• Licenses for the Gellish Semantic Modeling Methodology and for the Formal English definition, giving:
  • Free of charge access to the latest versions of the Domain Dictionaries-Taxonomies
  • Free of charge access to the protected part of the knowledge base
  • Free access to the Wiki knowledge base on Semantic Modeling
  • Free of charge access to the purchasable documents
  • 10% reduction on the purchasable software
  • Help desk support for a maximum of 10 '10 minute' requests per year
  • Processing of 10 requests for Domain Dictionary-Taxonomy extensions or enhancements per year

• Guides on the application of the Gellish Semantic Modeling Methodology
  • Part 1: Architecture - an architecture for integration of information, knowledge and requirements
  • Part 2: Creation of Domain Dictionaries & Taxonomies
  • Part 3A: Knowledge Modeling
  • Part 3B: Specification of Requirements and Verification of Deliverables
  • Part 4: Facility Information Management using Facility Information Models (incl. BIM)
  • Part 5: Modeling of Activities and Processes
  • Part 6: Creation of Facility Information Models and Product Models
  • Part 7: General Semantic Modeling Principles and Guidelines
  • Part 8: Integration of Product Models in 1D, 2D and 3D (data, drawings and 3D-models)
  • Part 9: Modeling of Measurements and Observations
    
    
• Formal English and Formal Dutch Domain Dictionaries-Taxonomies(Version 8.3 October 2012)
  • Definition of Formal English - Upper ontology section - TOPini and TOPextensions
  • Architecture, Buildings, Infrastructure and Furniture
  • Scales, Units of Measure and Currencies
  • Activities, Events & Processes
  • Aspects, Properties and Qualities
  • Documents, Identification, Information, Symbols and Annotation
  • Electrical, Instrumentation, Control and Information Technology
  • Facilities, Static equipment and process units
  • Piping, protection and connection material
  • Geographic objects, Countries
  • Biology, Business and Organizations
  • Mathematics, Geometry and Shapes
  • Roles of aspects and Roles of physical objects
  • Rotating equipment, Transport equipment and Solids handling
  • Substances, Materials of construction, Fluids, Solids and Gases
    
    
• Gellish Search Engine software, which enables to search through Dictionaries-Taxonomies-Ontologies and any other Gellish Information Model and to verify the correctness of their expressions.

Why Gellish Formal English?

A break-through in the technology of information and knowledge modeling.

Gellish Formal English is a standard universal language, including a formal grammar and a Formal English Dictionary-Taxonomy, for expressing information, knowledge and requirements in a human and computer interpretable way that is 'neutral' and system independent. The language has an unlimited scope, whereas conventional data models (databases) and standards have a fixed and limited scope. Gellish Formal English is a standardized formal subset of natural English. Other Gellish variants, such as Gellish Formeel Nederlands, share the same concepts, which enable that automated translation of Gellish expressions from one natural language to another is supported. Gellish is compliant with ISO 16354 and an RDF implementation of Gellish is being standardized as ISO 15926-11.

Application of Gellish enables real integration of data from different sources. It also enables integration of data, documents, and 2D drawings and 3D models. The language is generally applicable and is further extensible. Its main application area's are: the creation of compatible and consistent databases such as for system independent Product and Process Models, Facility Information Models (FIMs), Building Information Models (BIMs), product catalogs as well as knowledge and requirements, including business rules. It is also developed to enable smooth data exchange between systems and business parties and eliminating costly data conversions in case of data migration and data integration. Furthermore, it is also applicable for developing and application of electronic Dictionaries, Taxonomies, Thesauri and Ontologies.

The definition of Gellish Formal English is available for licensees or can be purchased via the webshop. An older (2008) version is available free of charge under the Open Source LGPL license conditions from the Download area. Gellish can be used and implemented in various ways, including in conventional SQL database systems, or in XML using the Gellish XML Schema definition of a Gellish ExpressionTable, or in RDF, OWL or in simple CSV files or as spreadsheet tables. Gellish is an 'embedded language', which means that it does not need a meta-language for its definition.

Read more about the exploitation of the power of:

• The Gellish language (initially Formal English and Formal Dutch)

• The Gellish Semantic Modeling Methodology

Gellish.net is a not-for-profit organization that offers:

• Training and support services on information integration through the semantic modeling of products and processes, using the Gellish Semantic Modeling Methodology and Formal English or Formal Dutch.
• Development and Maintenance services for high quality Domain Dictionaries-Taxonomies and Ontologies, including Knowledge Models, Requirements Models and Information Models (including BIM).
• Information Management Maturity checks and Information Management Maturity Ladder certification services to assess the qualities of information management, semantic models as data sets and Gellish supporting software.
• Advise on Information Management and Information Modeling using Formal English or Formal Dutch, including also Universal Semantic Database design and Data Exchange Messaging.