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Populating the UI

Populating the UI. This section describes the ‘middle tier’ that sits between the 3Store and the UI code. Handles UI actions such as moving and inserting columns. Forms the queries to get the information to populate the UI. Formats returned data and pushes it into the UI.

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Populating the UI

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  1. Populating the UI • This section describes the ‘middle tier’ that sits between the 3Store and the UI code. • Handles UI actions such as moving and inserting columns. • Forms the queries to get the information to populate the UI. • Formats returned data and pushes it into the UI. • Allows the representation of arbitrary RDF data through generalisation functions.

  2. Getting Data • RDF Data Query Language (RDQL) used to get data from the 3Store. • RDQL query matches against the RDF graph • Returns requested variables • Results are returned as XML • This data is traversed and placed into the client side data model.

  3. Generalisation • Early work involved creation of a music-specific system, with a view to generalisation in future. • Full generalisation is implemented. • Our system can be quickly and easily be used to visualise other RDF data via some simple configuration changes.

  4. Power Assist • Assistance to the user in identifying trends in their favourites selections. Takes two forms: • ‘Power Assist’ button. Reorganises the column layout, potentially showing previously unused ones, and selects items based on their potential interest. • Item highlighting. This highlights items in each column based on their potential for interest.

  5. Progress • Relatively little functionality has changed. • Code has undergone significant refactoring. • Greatly eases changes to the code. • Method performing queries rewritten to allow for future performance enhancements. • Enhancements to the Power Assist algorithm.

  6. Future Work • Work is being undertaken on this section beyond the current project. • This includes: • Enhancing the parse speed for returned data. • Further enhancements to the Power Assist algorithm. • Improvements to the Preview Cue algorithm. • Rewriting the core code in other languages.

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