from data storage to information management
DESCRIPTION
Presentation for annual V-ict-OR Shopt IT conferenceTRANSCRIPT
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From data storage to information management
Adventures in -ication
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Who am I★ Managing Partner, Outerthought
★ www.outerthought.org
★ content- and knowledge management
★ Open Source CMS
★ www.daisycms.org
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Topics
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Organisation
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Classification
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Discovery
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Organisation
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The Database
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Rule 1: The Information rule
All information in the database is to be represented in one and only one way, namely by values in column positions within rows of tables.
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BigTable
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★ Schema-free databases
★ Name-value pairs
★ Keys ➠ URIs
★ Relations ➠ HyperLinks
★ No SQL unfortunately?
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★The era ofinformationrepositories
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★ Storage of documents instead of records
★ Relations through hyperlinks
★ Dynamic or non-relational schemas
★ Weak, if any, typing
★ Focus on findability and storagability rather than on schema adherence
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★ Shift from database to data modelling
★ Increasing importance of the domain model
★ Semi-structured information
★ Content- and information rather than website or document management
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1. Domain Modelling
2. ‘External Classification’
Two challenges
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Domain Modelling
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★ wireframes★ navigation hierarchy★ landing pages★ lists of things★ which content will fit where
★ ‘UML’-like domain model★ content★ structure★ which content can be shown where
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★ domain model
★ define and name entities, content parts and characteristics
★ define and establish relationships★ think about findability★ think about unit of manipulation★ think about access control
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External Classification
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Labelling
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Classification
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The Universal Taxonomy
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Run!Run!Run!
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★ the universal taxonomy fails
★ single-rootedness★ things appear in multiple locations★ omphaloskepsis: navel gazing
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multi-labeling
tagging
taxonomies ➠ folksonomies
➠
➠
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★ folksonomies
★ tags and optional tag bundles★ content- rather than
classification-driven★ user generated micro-content★ shown as tag clouds
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★ user generated micro-content
★ represents a genuine value★ must be moderated★ history falsification★ spam (PR whoring, p0rn)
★ lower the doorstep★ no authentication required★ QA burden for content owner
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Drip feeding
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success factors★ volume★diversity★reward
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impediments★ when a formal classification is
required★ expert communities★ classification ~ structure
★ when full-text searching is a viable alternative★ use tags to define weight in ranking
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Discovery
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★ the doom of simplicity
★ natural language processing
★ plurals
★ typos
★ abuse-prone
★ no upfront expectation management
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★ upfront knowledge
★ managed expectations
★ principle of least astonishment
WILL BE
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Facetted navigation
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Facetted navigation
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Facetted navigation
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Facetted navigation
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Conclusions
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Organisation★ Always make a thorough judgment as to
where to store what
★ RDBMS for relational data
★ Repositories for documents/information
★ Integrate instead of standardization
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Classification★ Rich metadata improves findability and (re)
usability
★ Somewhat-typed metadata
★ Tagging, folksonomies r k3wl, but
★ Business case needed
★ Don’t forget menial tasks
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Discovery★ Premature feedback doesn’t exist
★ Classification can add influence ranking
★ K I Simple !
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Case
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CCGC★ aka: Lesson learnt in information design
★ Canadian Coast Guard College
★ Case: Management of Competency-based Training Material
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Course
Course Unit 1 Course Unit 2
Course Unit 3
PerformanceObjective
Terminal Objective
EnablingObjective
EnablingObjective
EnablingObjective
EnablingObjective
Competency Table
Competency Area
General Competency
General Competency
Specific Competency
Specific Competency
Specific Competency
Sub-Competency
Sub-Competency
Sub-Competency
Sub-Competency
Sub-Competency
Sub-Competency
Sub-Competency
Sub-Competency
Sub-Competency
Sub-Competency
Sub-Competency
Sub-Competency
Sub-Competency
Specific Competency
Specific Competency
Course Unit 1 Course Unit 2
Course Unit 3
Competency Area
PerformanceObjective
General Competency Terminal
Objective
Specific Competency
EnablingObjective
EnablingObjective
EnablingObjective
EnablingObjective
Sub-Competency
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Learning Object
Competency Classification
Specific Competency
(Terminal Obj.)
General Competency(Perf. Obj.)
Competency Area
(Course Unit)
Enabling Objective / Sub-Competency
BodyPerformance Action Verb
Teaching Information
Overview
Aim
Trainer’s Notes
Learning Strategies
Exercises
Ressources
References
Evaluation
Performance Environment
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curricullum
Description: daisy/html
General Competencies: link
Competency Area
Description: daisy/html
Specific Competencies: link
General Competency
Description: daisy/html
Specific Competency
Aim: daisy/html
Trainer's Notes: daisy/html
References: daisy/html
Performance Standards: daisy/html
Evaluation Standards: daisy/html
- Competence Hierarchy: link
- Performance Action Verb: string
- Performance Environment: string
+ Prerequisites: link
+ Student Notes: link
+ Exercises: link
+ Resources: string (selection)
- DeliveryTime: long (minutes)
- DeliveryMethod: string (selection)
Learning Object
competency listing
(query)
competency table
course rendition
Description: daisy/html
Teacher info: daisy/html
Student info: daisy/html
- Competence Hierarchy: link
- DeliveryTime: long (minutes)
- DeliveryMethod: string (selection)
+ Resources: string (selection)
Type?
Exercise
Course Training Standard: daisy/html
Course Structure: list of LO's
n/a
Internal Course
com
pete
nce h
iera
rchy
CompetencyTable: list of LO's
n/a
Competency Table
Content: daisy/html
+ Competence Hierarchy: link
Student Note
Description: daisy/html
n/a
External Course
All parts required for bookpublishing
Metadata?
Rendition
Description: daisy/html
+ Courses: link
Curricullum
use
docu
men
ts t
o m
odel
cla
ssifi
catio
n hi
erar
chy
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CCGC★ Problem
★ 10 x 10 x 10 x 10 = 10.000★ 20 x 20 x 20 x 20 = 160.000★ ...
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CCGC★ Solution
★ Hierarchical Structure Widget
★ Store hierarchy in XML document
★ Provide authoring and editing widget for hierarchy
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CCGC
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CCGC
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CCGC★ Lessons learnt
★ think critically about metadata
★ the system might need adaptation (or the data)
★ focus on domain model rather than on the ‘website’