Features Implemented in Various Hydra Heads

Ingest (See self and mediated deposit also)

• Sufia
• Hydrus
• DIL

Metadata (find good sources)

• VRA (DIL)
• PBCore / EBUCore (WGBH?)
• MODS
• MARC
• Dublin Core
• ...

File Characterization

• Sufia 

Video Transcoding

• Sufia (OpenSource - lightweight)
• Avalon (OpenSource - heavyweight - Matterhorn)

Video Delivery

• Sufia (OpenSource - lightweight)
• Avalon (Commercial - scalable)

Exhibits

• DIL (Clippings - ordering)
• Atrium
• TDL

Batch

• DIL (metadata update based on batch search)
• Sufia

Workflow/Administration

• Argo
• DUL
• Avalon
• Tufts (?)
• Hydras

(does Mediated deposit go here or with self-deposit, or stand-alone?)

Visiblity / Embargo / License 

• Hudrus
• Sufia
• DIL

Self-Deposit

• ScholarSphere/Sufia
• Hydrus
• WGBH (large files)

Image Derivatives

• DIL
• ScholarSphere/Sufia

Group Management

• DIL
• Avalon

Collections (does it matter what this means?)

• Hydrus
• DIL
• ...

User Collection Building - PSU, Northwestern,

Managed Collection Building - Northwestern, 

Authentication & Authorization

• LDAP
• Shibboleth
• Active Directory (as LDAP)
• ...

Identities (decorating users and user actions - as opposed to authentication and authorization)

• Sufia

Discovery

• Blacklight
• Sufia
• DIL
• Avalon
•  ...

(see also exhibits)

If you had the encapsulated functionality above, could you build:

• Mediated / Self deposit IR
• ETD Repo
• Scholarly Archives
• Collection Exhibits
• Media Repositories (storage and archivist support)
• Media Repositories (distribution and exhibition)

Current Needs (and implementers?)

User Collection Building - PSU, Northwestern

Administrative collection Building - Northwestern, Indiana

Workflow Engine (Robots, BPEL)

Mediated, DSpace like workflow (extract from Hydrus) - deposit->edit->review->publish (DCE, others)

User Crowd-sourced Annotation - (WGBH)

Generic File (extract from Sufia, Notre Dame) 

Workers (or jobs) (for Generic File) (extract from Sufia, Notre Dame)

Admin UI (Fedora Object inspector + editor) (extract from Argo)

Geospatial - (Stanford, Notre Dame)

Single use links (extract from Sufia)

Characterization (extract from Sufia)

Thumbnail generator (extract from Sufia)

Full Text index in solr (extract from Sufia)

Permanent Links

Nestable sets (extract from DIL)

Orderable sets (extract from DIL)

Exhibits (finalize Atrium?, Notre Dame, DCE, Stanford)

Group Management (Avalon, DIL)

Media Server ACL Integration (extract from Avalon)

Dropbox/Box Integration

IR Solution Bundle (an effort that happens independent of separate gems created above)

Media Solution Bundle (")