Mediaflux Desktop

Mediaflux Desktop is a web operating system for metadata and data enabling users, from individuals to distributed groups, to ingest, discover, and share any type of data.

Mediaflux Desktop utilises contemporary Web 2.0 technology, dynamically constructing menus, panes and pop-ups based on the underlying data, stored in Mediaflux.

Mediaflux Desktop

Figure 1 - Mediaflux Desktop Applications

Employing a desktop metaphor, applications such as Asset Map and Asset Finder, are used to manage data.

Key Features

  • Discovery - simple, powerful web based search tool
  • Geolocation - location based display and discovery
  • Automated metadata extraction from data - metadata can also be added manually at any time
  • Flexible metadata management - definitions can be updated at any time on a live system
  • Versioning - earlier versions are automatically preserved when data is updated
  • Designed for large data - scales to billions of files and petabytes of data
  • Replication - data can be automatically shared to multiple systems
  • Federation - search across multiple systems, loosely coupled, exponentially scalable
  • Integrated with tiered data stores - data can be streamed to lowest cost tier
  • High performance - parallel I/O for ingestion and replication
  • Traceable - trace results back to source data
  • Auditing - all operations captured in an audit trail
  • Usability - Utilises drag and drop with visual feedback, context sensitive menus, mouse overs and tooltips
  • Access control - flexible access control based on hierarchical (actor, control, subject) triplet; access control lists and fine grain control to metadata document level
  • Integration - can integrate with any other system
  • Low cost of ownership with bounded and known costs and commercial grade support.

Asset Finder

  • Upload and download data, from a single file to thousands, from a single byte to terabytes
  • Package large datasets based on patterns defining which files to process or ignore, which to coalesce and which are related
  • Automate the flow of data with views, filters and favourites
  • Browse data and metadata
  • Deliver data to external applications and systems for transformation
  • Update metadata for one or many items in one operation
  • Annotate video (time coded), audio (time coded) and images, and search for data based on annotations
  • View previous versions of modified data
  • Export discovered data in XML or CSV format.
Mediaflux Desktop Asset Finder

Figure 2 - Asset Finder

Use filters for searches and display results in your preferred format.

Asset Map

  • Location based data display
  • Location based data discovery
  • Use Layers to visually compare the location and distribution of data
  • Integrated geographical feature database
  • Export discovered data in XML or CSV format
  • Display maps from internal images
  • Spatial searches discover data related to a search area in some way (e.g. inside, outside, intersecting or covering the search area).
Mediaflux Desktop Asset Map

Figure 3 - Asset Map

Display and compare the location of data using Layers with different search criteria for each Layer.

Discovery

There are several methods to search for and discover data with Mediaflux Desktop.

The first few characters of a metadata element may be entered and a list of all matching metadata from selected collections will appear in a drop-down list. The list includes only items that the user is authorised to view. Any item from the list may be selected, and matching data are returned. Alternatively, the entered characters may be further qualified, or modified. This cycle may be repeated as necessary.

Mediaflux Desktop Text Search

Figure 4 - Search suggestions are offered in real-time and subject to access control

Powerful structured searches can be constructed with just a few mouse movements and keystrokes by dragging one or more filter elements to form the search criteria. Searches may be constrained to selected collections.

Mediaflux Desktop Filter Search

Figure 5 - Construct powerful structured searches with drag and drop

Asset Viewer

  • Display image data - pan and zoom high-resolution images.
  • Add spatial annotations to images - the annotations, being metadata, become search targets.
  • Play and display audio and video assets - video assets may be played frame accurately.
  • Add temporal annotations to audio and video- associate an annotation (metadata) with a time code range.
  • Display other data types - application specific data may be displayed by automatically launching the appropriate application.

Metadata Library

  • Create and update metadata document definitions with a simple graphical tool.

Metadata documents are organised into namespaces, and authorised users can define and edit metadata documents at any time.

Metadata elements include a description, which is displayed as a tool tip when metadata is being entered or updated by users. Elements may be mandatory or optional, may occur one or more times, may or may not be indexed, and are assigned a type.

Mediaflux Desktop Metadata Management

Figure 6 - Metadata Library Management

A web based tool for building metadata document definitions. A library of pre-defined documents is available, or documents can be created and modified as required.

Dictionaries

  • Create and maintain arbitrary look-up lists (dictionaries), consisting of terms and associated definitions.

Elements in metadata documents can refer to specific dictionaries, for example a metadata element "Country" could refer to a dictionary consisting of a list of country names.

Access Management

  • Define and edit access for users, domains, and roles
  • Apply access controls to collections of data.

Data may be described by multiple metadata documents and each document can be assigned different access controls.

Mediaflux Desktop Access Management

Figure 7 - Access Management

Set access controls for collections and for metadata documents, and manage users, roles, and domains.

Mediaflux Desktop is a client side JavaScript based framework accessed from a suitable web browser. Mediaflux Desktop is a package installed into and downloaded automatically from the Mediaflux server.

Mediaflux Desktop is developed with the Google Web Toolkit (http://code.google.com/webtoolkit). It is Arcitecta's own implementation and uses no toolkits. Libraries are available for developers to assist with developing their own clients or developers can add their own applications within the Desktop framework.

Supported Browsers

Supported browsers are:

  • Firefox version 3.6.x and later
  • Safari 4 and later
  • Chrome 3.0.x and later.