LDM

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Unidata Technologies
Repository
What do you have?
LDM
Catalogs ADDE
Decoders, conventions, CDM, etc.
ADDE TDS
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Repository Usage Contexts

• Local Client
• Home Machine
• Youtube of data
• Field Projects, e.g., VOC
• IDD
• Federated Repositories

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RDMS
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Data Model
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Create a group

• Create a new group entry
• Common metadata- name, description, date range,
  geospatial
• All but name is optional

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Specify access

• Role based access control
• Hierarchical child entries inherit access
• Actions view, edit, delete, etc.

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Define metadata

• Any number of metadata definitions
• Extensible easy to add new types
• Searchable

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View Metadata
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Upload Radar File

• Specify name, file, geospatial, product, etc.
• Its possible to crack open files to harvest
  metadata

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View Details
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Preview Data

• Dynamically generated IDV imagery, movies, etc.

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Search

• Search on
• -type
• -geospatial
• -metadata
• -text
• -sub types (e.g., station)
• -etc.

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Sub-Type Search
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Search Results as Timeline
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Search Results as RSS Feed

• Output handlers are extensible
• E.g., html, timeline, rss, catalog, etc.

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Request
Result
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Catalog Gen.
IDV
TDR
ADDE
LEAD
LDM
Repository
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Issues

• Scalability Performance
• Database Technology
• Is common metadata enough?
• Descriptive metadata model
• Service integration
• Etc users, authentication, security, access
  control,
• ???