Gena ChattinEarl K. Long Library,

University of New Orleans

Digital Collection Management with

CONTENTdm and Omeka

Two Tools, Two

Organizations

Both:CostBackup and Preservation

Hosted:Content Limits

Disk Space Item Count

Design Limits

In-HouseMaintenance Overhead

Hardware and OS UpgradesSecurity, AntivirusStaff Expertise

Flavors of Each: Bring it Home, or To the Cloud?

CONTENTdmFull Version(Omeka.org)

Free and Open Source. Hosted (Omeka.net)

Limited plugins, themes.Storage: 500 MB (free)

to 25 GBCost: $0- $999 / yearCustom Plans, possible,

but they costSupport:

Omeka.org/forums Omeka-Dev Google

Group

Flavors of Each

OmekaLicense Levels (FY

2013)Level 1: 10,000

ItemsLevel 2: 50,000

ItemsLevel 3: Unlimited

Hosting ServicesLevel 1: 30 GBLevel 2: 150 GBLevel 3: 750 GB

CONTENTdmClient-ServerServer: Unix/Linux

or WindowsProject Client

Metadata entryBatch upload and

processing

Web CMSServer:

Unix/Linux only with MySQL database

Developed in PHPAll work done through

a Web browserBatch uploads:

“Dropbox” plugin (but not THE Dropbox)

System Architecture

Omeka

One Item – Many Files

Digital Object Model: Omeka

Item: Photo(Metadata

Here)

File 1: Front of Photo

File 2: Back of Photo

One Item – Many Files: Add New Files in Admin Panel

Item: Photo File 1: Front File 2: Back

Digital Object Model: Omeka

One Item – Many Files: Display Example

Brochure for Center of Interactive Management(Two sides of tri-folded brochure)

http://warfield.gmu.edu/items/show/230

Note: Metadata record for object, not individual images

Digital Object Model: Omeka

How Many Items? (Full Omeka)CHNM says:

Depends on your hardwareOmeka is a CMS, not a DAMS, so no official maxTested at 100,000 records

Server slow-down at 10,000 if files attached 1

And yet… Florida Memory (http://www.floridamemory.com) Several 100,000 items 2

MySQL DatabaseCode/query changes could affect performance –

keep in mind if you customize.

1. http://omeka.org/forums/topic/maximum-file-size

2. http://omeka.org/forums/topic/maximum-number-of-items-transferability-of-data

Omeka: Items

How Many Items? (Omeka.NET)

No item count limit. Plans limited by storage space, not item

count.

Omeka: Items

One Collection – Many Items

Digital Object Model: Omeka

Collection 1: Joe Smith

World War 2 Collection

Item 12: Photo of

Smith on Boat

Item 37: Letter from

Smith to Parents

Collection 2: Joe Smith Baseball

Collection

Item 7: Photo of Smith at

Yankee StadiumItem 20: Photo of Baseball caught at

game

Collection 3: Joe Smith New York Collection

Item 7: Photo of Smith at

Yankee StadiumItem 42: Clippings from New York Times

Items may appear in only one Omeka Collection.

However… with the Exhibit Builder plugin, an item may appear in multiple Exhibits.

One Collection – Many Items

A Look Back at Braddock DistrictFairfax County, Virginia

http://braddockheritage.org/collections

Digital Object Model: Omeka

Structural Plugins: Exhibit Builder and Simple Pages

Exhibit Builder: “allows you to publish online exhibits and special web pages that showcase a combination of digital objects in an Omeka archive with narrative text”

Simple Pages: “allows you to easily create web pages for your public site using a simple form….and optionally allows users to add basic HTML markup.” (Can help with navigation – if you need to add a page outside the Exhibit framework.)

Digital Object Model: Omeka

Exhibit Builder

The Life and Work of Dr. John Warfield

http://warfield.gmu.edu/exhibits/

Digital Object Model: Omeka

Many Exhibits – Many ItemsAn Exhibit can have many Items, and a single

Item can appear in multiple Exhibits.

Digital Object Model: Omeka

Exhibit 1: New

Orleanians in World War II

Item 12: Photo of Joe

Smith on Boat

Item 102: Photo of Bob

Grey with Rifle

Exhibit 2: Joe Smith: A Life in Pictures

Item 12: Photo of Joe

Smith on Boat

Item 7: Photo of Joe Smith

at Yankee Stadium

CollectionA group of objects (items) that share the same

metadata scheme and live on the same server.

Items Must be attached to a collection, and the

number you can have depends on your agreement with OCLC.

Digial Object Model: CONTENTdm

Items / Objects

Simple ItemOne file = One item = One object.

Complex Object Two or more items assembled togetherDocument – multiple sequential pagesMonograph – hierarchical structurePostcard – two-sided items, front and back imagesCube – up to six images, view three-dimensional object

Compound Objects have XML wrappers that add an additional item toward your item count for each compound object.

Digial Object Model: CONTENTdm

CONTENTdmDublin Core

55 qualified elements offered

DC.Title is the only mandatory mapping

125 max fields per collection

128,000 characters per field

Customizable fields allow for potential to use other standards

Dublin CoreBasic element set

offeredDublin Core

Extended plugin adds full set

No custom field labels, added fields, or re-mapping

Plugins available for LC Authorities

Metadata Omeka

Neither one claims to be a Digital Asset Management System

CONTENTdm – Potentially can be used with OCLC’s Digital Archive

Omeka – you’re on your own.

Preservation?

CONTENTdmDigital Collection

Gateway / WorldCatOAI 2.0 compliant

OAI-PMH Repository plugin

Findability

Omeka

ProsExhibit BuilderTheme Customization – Sky is (almost) the limitActive User and Developer Communities

ConsVery few canned themes out of the boxSite search (out of the box) limitedPDF issuesPlugin issues during upgrades

User Experience: Omeka

Web Config ToolCustomization of landing pagesBranding / Themes

Inserting simple HTML pages, Web forms, etc. into your site

Sharing / Social NetworkingCommunity-Building and Crowdsourcing

(rating, commenting, tagging)

User Experience: CONTENTdm

What Is Possible:

Peace Corps Digital Libraryhttp://collection.peacecorps.gov/

Custom Upload Forms (as seen in recent OCLC Webinar featuring this site) based on canned scripts from the User Support Center

Beautiful design, style

User Experience: CONTENTdm

CONTENTdmMetadata:

Items described by linked data

Move from Client-Server to a Web Service

Version 2.0 release expected in late October 2012

Omeka CommonsCentral point of

discoveryShare and embed items

Further integration with GLAM and Scholarly Comm. platformsLinked open data

The Future

Omeka

What Should We Use?

Storage limits?Customization needs?Data standards and needs?In-house hardwareIn-house expertise / staffHow much will/can we spend?

Recommendations

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Questions?

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