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Topic Map cartography
a discussion of Topic Map authoring
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Topic Maps, implemented through the ISO/IEC 13250 standard, are designed
to facilitate the organisation and navigation of large collections of information
objects by creating meta-level perspectives of their underlying concepts and
relationships. This paper will examine the issues involved in using the standard
to create Topic Maps that enable this objective. As a so far unproved new
technology, the presentation aims to begin the process of establishing ‘good
practice’ methods for creating and maintaining these meta-level perspectives.
It asks some key questions: How do I differentiate between Topic concepts?
Is there such a thing as a bad and obstructive Topic? What is the best way
to make my Topic associations make sense? How should I organise my topics,
occurrences, scopes, themes and maps? What is a good way of preserving the
longevity of my Topic Map?
Topic Maps may well develop as an organisation’s fundamental perspective
of their data, ranging from their core knowledge to their website. We can
imagine Topic Map perspectives being used to organise, understand, present
and drive any facet of their activity such as their research and development,
management, services and marketing initiatives. In reality, the conceptualisation
of meta-data from any given source is boundless, but it is inevitably prone
to subjectivity either through direct human participation, or by the human
creation of rules and patterns in automatic processes. Therein lies both its
strength and weakness. One of the purposes of this paper is to examine the
standard for mechanisms that may support a regularized and unambiguous approach
to creating these perspectives. Where these mechanisms are absent or deficient,
there needs to be some thought and discussion concerning additional means
to support the authoring of them.
The paper will therefore seek to identify mechanisms within the standard
that facilitate the creation of effective Topic Maps, ones that can withstand
the rigors of multiple authorship, amendment and merging, yet still provide
the author with the conceptual flexibility needed to create an effective representation
of their data. Does the standard provide ways of answering the questions outlined
above? If it does not, then we need to develop an additional framework to
guide the creation of a good map and which enables the author to make that
crucial differentiation between concepts, or that crucial expression of a
relationship when and where they need to. What’s more, this framework
needs to be understood and preserved by any subsequent author and possibly
even by the application providing the interface to it. There is no doubt that
the Topic Map standard has raw power, but if an organisation cannot see how
to encapsulate it effectively as a means of expressing their data at a useful
level, this power will be wasted. This presentation will endeavour to begin
the discussion that should attempt to address this important aspect of Topic
Map implementation.