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A collaborative blogspace for constructing and publishing semantic knowledge networks and ontologies

Project description

A collaborative workspace (studio) for constructing and publishing semantic knowledge networks and ontologies.


The application is devided into two sub-apps. Gstudio and Objectapp. The former includes classes for organizing the network or constructing an ontology. The latter includes classes for holding the instances of object-types, process-types and system-types.

Gstudio Components

  • Metatypes

    To hold Classes which have other classes as its members. e.g. “abstract noun”, “adjective”, “phylem”, “class”, “genus”, “species” etc.

  • Object types

    To hold Classes: e.g. “thing”, “being”, “living being”, “animals”, “cat”, “place”, “person” etc.

  • Relation types

To define binary relations (object properties) between classes and objects. e.g., “part of”, “friend of”, “composed of”, “located in” etc. * Attribute types

To define datatype properties for classes and objects. e.g., “population”, “size”, “length”, “height”, “first name”, “phone number” etc.

  • System types

    To bring together some of the classes into a system or an ontology, a collection of the types defined above for convenience. You can bring together the required classes, relations and attributes into

  • Process types

    To define a process as prior and post states of classes or objects.

  • Attributes

    To store attributes

  • Relations

    To store binary relations

  • Node Specification

    A node specified (described) by its relations or attributes or both.

  • Relation Specification

    To create an expression using a relation with a subject, e.g., “friend of Tom”, “components of a cell” etc.

  • Attribute Specification

    To specify an attribute by a subject to say for example: population of India, color of a flower etc. These do not yeild a proposition but an expression, which can be used as a subject in another sentence.

  • Expression

    Expression is more like a relation between two terms, but it does not yeild a proposition, e.g., “Researchers in India”, “students residing in India” etc. It is modelled more like relation class, except that the result is not a proposition/triple.

  • Union

    To define a class by a union relation between two or more classes.

  • Complement

    To define a class as a compleemnt of two or more classes.

  • Intersection

    To define a class as an intersection between two or more classes.

Objectapp Components ——————

  • Objects

    To hold the instances of Object types: “Mumbai”, “Tom” etc.

  • Systems

    To hold the instances of System types.

  • Processes

    To hold the instances of processes.

Online Collaborative Platform

The application is built as a collaborative on line platform with the following features.

Version Control

All the changes by the users will be recorded. This feature is implemented using using django-reversion.

User Registration

Basic registration, authentication mechanism.

Network Navigation using SVG graphs ==================================

  • neighbourhood graphs and concept graphs

Other Semantic Web features

  • data in RDF format

  • rdf feed to a triple store

  • sparql endpoint

Features to be implemented

  • export and import of standard knowledge representation languages: CL, OWL, XTM etc.

Features adopted from Django-Blog-Zinnia

The following features are adopted from django-blog-zinnia code base with a lot of gratitude. Thanks to an excellent codebase of django-blog-zinnia, which taught us best software development practices as well! After reviewing each feature for the purpose of semantic blogging, we will retain or extend the following features.

The features listed here are not thourougly tested. There is a likelyhood of misbehavior.

  • Comments

  • Sitemaps

  • Archives views

  • Related entries

  • Private entries

  • RSS or Atom Feeds

  • Tags

  • Advanced search engine

  • Prepublication and expiration

  • Editing in MarkDown, Textile or reStructuredText

  • Widgets (Popular entries, Similar entries, …)

  • Spam protection with Akismet or TypePad

  • Admin dashboard

  • MetaWeblog API, xmlrpc

  • Ping Directories

  • Ping External links

  • support

  • Twitter support

  • Gravatar support

  • Django-CMS plugins

  • Collaborative work

  • Tags autocompletion

  • Entry model extendable

  • Pingback/Trackback support

  • Blogger conversion utility

  • WordPress conversion utility

  • WYMeditor, TinyMCE and MarkItUp support

  • Ready to use and extendables templates

  • Windows Live Writer compatibility


A sandbox site will give you a preview of the application. Visit

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