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From data storage to information management
 

From data storage to information management

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Presentation for annual V-ict-OR Shopt IT conference

Presentation for annual V-ict-OR Shopt IT conference

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    From data storage to information management From data storage to information management Presentation Transcript

    • From data storage to information management Adventures in -ication
    • Who am I ★ Managing Partner, Outerthought ★ www.outerthought.org ★ content- and knowledge management ★ Open Source CMS ★ www.daisycms.org
    • Topics
    • Organisation
    • Classification
    • Discovery
    • Organisation
    • The Database
    • 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.
    • BigTable
    • ★ Schema-free databases ★ Name-value pairs ➠ URIs ★ Keys ➠ HyperLinks ★ Relations ★ No SQL unfortunately?
    • ★ The era of information repositories
    • ★ 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
    • ★ Shift from database to data modelling ★ Increasing importance of the domain model ★ Semi-structured information ★ Content- and information rather than website or document management
    • Two challenges 1. Domain Modelling 2. ‘External Classification’
    • Domain Modelling
    • ★ 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
    • ★ 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 ★
    • External Classification
    • Labelling
    • Classification
    • The Universal Taxonomy
    • un! Run!
    • ★ the universal taxonomy fails ★ single-rootedness ★ things appear in multiple locations ★ omphaloskepsis: navel gazing
    • multi-labeling ➠ tagging ➠ taxonomies ➠ folksonomies
    •     
    • ★ folksonomies ★ tags and optional tag bundles ★ content- rather than classification-driven ★ user generated micro-content ★ shown as tag clouds
    • ★ 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
    • Drip feeding
    • success factors ★ volume ★ diversity ★reward
    • 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
    • Discovery
    • ★ the doom of simplicity ★ natural language processing ★ plurals ★ typos ★ abuse-prone ★ no upfront expectation management
    • BE ILL W ★ upfront knowledge ★ managed expectations ★ principle of least astonishment
    • Facetted navigation
    • Facetted navigation
    • Facetted navigation
    • Facetted navigation
    • Conclusions
    • Organisation ★ Always make a thorough judgment as to where to store what ★ RDBMS for relational data ★ Repositories for documents/information ★ Integrate instead of standardization
    • Classification ★ Rich metadata improves findability and (re) usability ★ Somewhat-typed metadata ★ Tagging, folksonomies r k3wl, but ★ Business case needed ★ Don’t forget menial tasks
    • Discovery ★ Premature feedback doesn’t exist ★ Classification can add influence ranking ★ K I Simple !
    • Case
    • CCGC ★ aka: Lesson learnt in information design ★ Canadian Coast Guard College ★ Case: Management of Competency-based Training Material
    • Competency Table Course Sub-Competency Course Unit 1 Course Unit 2 Specific Sub-Competency Competency Performance Sub-Competency Objective General Sub-Competency Terminal Specific Competency Objective Competency Sub-Competency Enabling Sub-Competency Specific Objective Competency Competency Sub-Competency Area Enabling Objective Sub-Competency Course Unit 3 Enabling Sub-Competency Specific Objective Competency Sub-Competency General Enabling Competency Sub-Competency Objective Sub-Competency Specific Competency Sub-Competency
    • Learning Object Competency Classification Competency General Specific Area Competency Competency (Course Unit) (Perf. Obj.) (Terminal Obj.) Enabling Objective / Sub-Competency Performance Performance Body Action Verb Environment Teaching Information Overview Aim Trainer’s Notes Learning Strategies Exercises Ressources References Evaluation
    • model classification use documents to Competency Area Learning Object General Competencies: link - Competence Hierarchy: link Description: daisy/html competence hierarchy - Performance Action Verb: string hierarchy - Performance Environment: string + Prerequisites: link + Student Notes: link General Competency + Exercises: link Specific Competencies: link + Resources: string (selection) Description: daisy/html - DeliveryTime: long (minutes) - DeliveryMethod: string (selection) Aim: daisy/html Trainer's Notes: daisy/html References: daisy/html Specific Competency Performance Standards: daisy/html Description: daisy/html Evaluation Standards: daisy/html External Course n/a Description: daisy/html Exercise - Competence Hierarchy: link - DeliveryTime: long (minutes) - DeliveryMethod: string (selection) + Resources: string (selection) Type? Description: daisy/html Teacher info: daisy/html Student Note Student info: daisy/html + Competence Hierarchy: link Content: daisy/html Competency Table n/a CompetencyTable: list of LO's Internal Course n/a Course Training Standard: daisy/html Course Structure: list of LO's competency competency listing course rendition table (query) curricullum Curricullum Rendition + Courses: link Metadata? Description: daisy/html All parts required for bookpublishing
    • CCGC ★ Problem ★ 10 x 10 x 10 x 10 = 10.000 ★ 20 x 20 x 20 x 20 = 160.000 ★ ...
    • CCGC ★ Solution ★ Hierarchical Structure Widget ★ Store hierarchy in XML document ★ Provide authoring and editing widget for hierarchy
    • CCGC
    • CCGC
    • CCGC ★ Lessons learnt ★ think critically about metadata ★ the system might need adaptation (or the data) ★ focus on domain model rather than on the ‘website’
    • Q &A Thank you! stevenn@outerthougth.org