Introduction to Linked Data and Its Lifecycle on the Web - Reasoning Web - page 24

CSS
Framework

OntoWiki UI
API

RDFauthor Templates

User Interface Layer

Extensions
(Evolution,
Multimedia, …)

OntoWiki API,
Access Interfaces

Zend Framework

Application Layer

Authentication, ACL,
Versioning, …

RDF Store

Persistence Layer

Fig. 14. Overview of OntoWiki's architecture with extension API and Zend web framework
(modified according to [55])

OntoWiki is inspired by classical Wiki systems, its design, however, (as men-
tioned above) is independent and complementary to conventional Wiki technologies. In
contrast to other semantic Wiki approaches, in OntoWiki text editing and knowledge
engineering (i. e. working with structured knowledge bases) are not mixed. Instead, On-
toWiki directly applies the Wiki paradigm of “making it easy to correct mistakes, rather
than making it hard to make them” [90] to collaborative management of structured
knowledge. This paradigm is achieved by interpreting knowledge bases as information
maps where every node is represented visually and interlinked to related resources.
Furthermore, it is possible to enhance the knowledge schema gradually as well as the
related instance data agreeing on it. As a result, the following requirements and corre-
sponding features characterize OntoWiki:

Intuitive display and editing of instance data should be provided in generic ways, yet
enabling domain-specific presentation of knowledge.
Semantic views allow the generation of di ff erent views and aggregations of the knowl-

edge base.
Versioning and evolution provides the opportunity to track, review and roll-back
changes selectively.
Semantic search facilitates easy-to-use full-text searches on all literal data, search re-
sults can be filtered and sorted (using semantic relations).
Community support enables discussions about small information chunks. Users are
encouraged to vote about distinct facts or prospective changes.
Online statistics interactively measures the popularity of content and activity of users.
Semantic syndication supports the distribution of information and their integration
into desktop applications.