diff --git a/Gemfile b/Gemfile
index 49b2a280..446a9b16 100644
--- a/Gemfile
+++ b/Gemfile
@@ -10,6 +10,7 @@ gem 'bootsnap', '>= 1.1.0', require: false # Reduces boot times through caching;
 gem 'cancancan' # authorization
 gem 'config' # simple rails environment specific config
 gem "cssbundling-rails", "~> 1.1"
+gem 'dry-struct' # immutable value objects
 gem 'faraday' # HTTP client
 gem "geo_coord", require: "geo/coord"
 gem 'honeybadger' # exception reporting
diff --git a/Gemfile.lock b/Gemfile.lock
index b82ea6bc..d6530a1a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -163,6 +163,11 @@ GEM
       dry-logic (>= 1.4, < 2)
       dry-types (>= 1.7, < 2)
       zeitwerk (~> 2.6)
+    dry-struct (1.6.0)
+      dry-core (~> 1.0, < 2)
+      dry-types (>= 1.7, < 2)
+      ice_nine (~> 0.11)
+      zeitwerk (~> 2.6)
     dry-types (1.7.1)
       concurrent-ruby (~> 1.0)
       dry-core (~> 1.0)
@@ -190,6 +195,7 @@ GEM
     htmlentities (4.3.4)
     i18n (1.14.1)
       concurrent-ruby (~> 1.0)
+    ice_nine (0.11.2)
     iiif-presentation (1.2.0)
       activesupport (>= 3.2.18)
       faraday (~> 2.7)
@@ -445,6 +451,7 @@ DEPENDENCIES
   debug
   dlss-capistrano
   dor-rights-auth (~> 1.6)
+  dry-struct
   faraday
   geo_coord
   honeybadger
diff --git a/app/models/purl_resource.rb b/app/models/purl_resource.rb
index e2567e09..b12d44c6 100644
--- a/app/models/purl_resource.rb
+++ b/app/models/purl_resource.rb
@@ -151,6 +151,7 @@ def schema_dot_org?
   concerning :Metadata do
     def title
       if mods?
+        # This is from ModsDisplay::HTML
         Array.wrap(mods.title).join(' -- ')
       else
         public_xml.title
@@ -161,6 +162,7 @@ def description
       return unless mods?
 
       @description ||= begin
+        # This is from ModsDisplay::HTML
         abstract = mods.abstract.detect { |a| a.respond_to? :values }
         if abstract
           abstract.values.join.strip
@@ -212,6 +214,8 @@ def use_and_reproduction
 
     delegate :released_to?, to: :public_xml
 
+    delegate :doi, :doi_id, to: :desc
+
     def representative_thumbnail?
       representative_thumbnail.present?
     end
@@ -220,22 +224,12 @@ def representative_thumbnail
       "#{iiif_manifest.thumbnail_base_uri}/full/!400,400/0/default.jpg" if iiif_manifest.thumbnail_base_uri.present?
     end
 
-    # @return [String,nil] DOI (with https://doi.org/ prefix) if present
-    def doi
-      @doi ||= mods_ng_document.root&.at_xpath('mods:identifier[@type="doi"]', mods: MODS_NS)&.text
-    end
-
-    # @return [String,nil] DOI (without https://doi.org/ prefix) if present
-    def doi_id
-      doi&.delete_prefix('https://doi.org/')
-    end
-
     def publication_date
-      @publication_date ||= ::Metadata::PublicationDate.call(mods_ng_document)
+      desc.publication_year
     end
 
     def authors
-      @authors ||= ::Metadata::Authors.call(mods_ng_document)
+      desc.formatted_contributors
     end
 
     def schema_dot_org
@@ -325,6 +319,14 @@ def mods_ng_document
     @mods_ng_document ||= Nokogiri::XML(mods_body)
   end
 
+  def cocina_json
+    @cocina_json ||= cocina_body.present? ? JSON.parse(cocina_body) : nil
+  end
+
+  def desc
+    @desc ||= Description.new(mods_ng: mods_ng_document, cocina_json:)
+  end
+
   def logger
     Rails.logger
   end
diff --git a/lib/description.rb b/lib/description.rb
new file mode 100644
index 00000000..ed6f5a50
--- /dev/null
+++ b/lib/description.rb
@@ -0,0 +1,88 @@
+# require 'dry-struct'
+
+class Description
+  MODS_NS = 'http://www.loc.gov/mods/v3'.freeze
+
+  # Temporarily accepting nils to avoid fixing all tests.
+  def initialize(mods_ng: nil, cocina_json: nil)
+    @mods_ng = mods_ng
+    @cocina_json = cocina_json
+  end
+
+  # Conventions:
+  # * Prefer cocina naming.
+  # * "formatted_" indicates that a complex structure has been reduced to a string.
+
+  delegate :doi, :doi_id, to: :mods_identifier
+  delegate :publication_year, to: :mods_origin_info
+  delegate :formatted_title, to: :cocina_title
+  delegate :descriptions, :formatted_description, to: :cocina_note
+  delegate :contributors, to: :cocina_contributor
+
+  def formatted_contributors
+    # Temporary workaround to avoid fixing all tests.
+    # Otherwise, would be: delegate :doi, to: :cocina_identifier
+    cocina_json.present? ? cocina_contributor.formatted_contributors : mods_formatted_name.formatted_names
+  end
+
+  def doi
+    # Temporary workaround to avoid fixing all tests.
+    # Otherwise, would be: delegate :doi, to: :cocina_identifier
+    cocina_json.present? ? cocina_identifier.doi : mods_identifier.doi
+  end
+
+  def doi_id
+    # Temporary workaround to avoid fixing all tests.
+    # Otherwise, would be: delegate :doi_id, to: :cocina_identifier
+    cocina_json.present? ? cocina_identifier.doi_id : mods_identifier.doi_id
+  end
+
+  private
+
+  attr_reader :mods_ng, :cocina_json
+
+  def cocina_identifier
+    @cocina_identifier ||= CocinaIdentifier.new(cocina_json:)
+  end
+
+  def mods_identifier
+    @mods_identifier ||= ModsIdentifier.new(mods_ng:)
+  end
+
+  def mods_origin_info
+    @mods_origin_info ||= ModsOriginInfo.new(mods_ng:)
+  end
+
+  def mods_formatted_name
+    @mods_formatted_name ||= ModsFormattedName.new(mods_ng:)
+  end
+
+  def cocina_title
+    @cocina_title ||= CocinaTitle.new(cocina_json:)
+  end
+
+  def cocina_note
+    @cocina_note ||= CocinaNote.new(cocina_json:)
+  end
+
+  def cocina_contributor
+    @cocina_contributor ||= CocinaContributor.new(cocina_json:)
+  end
+
+  module Types
+    include Dry.Types()
+  end
+
+  # Base class for Structs
+  class DescriptionStruct < Dry::Struct
+    transform_keys(&:to_sym)
+    schema schema.strict
+  end
+
+  class Contributor < DescriptionStruct
+    attribute :name, Types::String
+    attribute? :forename, Types::String
+    attribute? :surname, Types::String
+    attribute? :orcid, Types::String
+  end
+end
diff --git a/lib/description/cocina_contributor.rb b/lib/description/cocina_contributor.rb
new file mode 100644
index 00000000..a3a0904a
--- /dev/null
+++ b/lib/description/cocina_contributor.rb
@@ -0,0 +1,81 @@
+class Description
+  class CocinaContributor
+    def initialize(cocina_json:)
+      @cocina_json = cocina_json
+    end
+
+    # @return [Array<Description::Contributor>] contributors
+    def contributors
+      @contributors ||= cocina_contributors.map { |cocina_contributor| contributor(cocina_contributor) }
+    end
+
+    # @return [Array<String>] contributors
+    def formatted_contributors
+      @formatted_contributors ||= contributors.map(&:name)
+    end
+
+    private
+
+    attr_reader :cocina_json
+
+    def cocina_contributors
+      JsonPath.new('$.description.contributor[*]').on(@cocina_json)
+    end
+
+    def contributor(cocina_contributor)
+      Description::Contributor.new(
+        **ContributorBuilder.new(cocina_contributor:).build
+      )
+    end
+
+    class ContributorBuilder
+      def initialize(cocina_contributor:)
+        @cocina_contributor = cocina_contributor
+      end
+
+      def build
+        { name:,
+          forename:,
+          surname:,
+          orcid: }.compact
+      end
+
+      private
+
+      attr_reader :cocina_contributor
+
+      def name
+        # contributor.name.value or concatenated contributor.name.structuredValue
+        JsonPath.new('$.name.value').first(cocina_contributor) || structured_name
+      end
+
+      def structured_name
+        # concatenated contributor.name.structuredValue
+        [forename, surname].join(' ')
+      end
+
+      def forename
+        # contributor.name.structuredValue.value with type "forename"
+        JsonPath.new("$.name[0].structuredValue[*].[?(@['type'] == 'forename')].value").first(cocina_contributor)
+      end
+
+      def surname
+        # contributor.name.structuredValue.value with type "surname"
+        JsonPath.new("$.name[0].structuredValue[*].[?(@['type'] == 'surname')].value").first(cocina_contributor)
+      end
+
+      def orcid
+        # contributor.identifier.uri or contributor.identifier.value with type "orcid" (case-insensitive), made into URI if identifier only
+        id_uri = JsonPath.new('$.identifier.uri').first(cocina_contributor)
+        return id_uri if id_uri.present?
+
+        orcid = JsonPath.new("$.identifier.[?(@['type'] == 'ORCID' || @['type'] == 'orcid')].value").first(cocina_contributor)
+        return if orcid.blank?
+
+        return orcid if orcid.start_with?('https://orcid.org')
+
+        URI.join('https://orcid.org/', orcid).to_s
+      end
+    end
+  end
+end
diff --git a/lib/description/cocina_identifier.rb b/lib/description/cocina_identifier.rb
new file mode 100644
index 00000000..663d3ffa
--- /dev/null
+++ b/lib/description/cocina_identifier.rb
@@ -0,0 +1,31 @@
+class Description
+  class CocinaIdentifier
+    def initialize(cocina_json:)
+      @cocina_json = cocina_json
+    end
+
+    # identification.doi or identifier.uri or identifier.value with type "doi" (case-insensitive), made into URI if identifier only
+    # @return [String,nil] DOI (with https://doi.org/ prefix) if present
+    def doi
+      @doi ||= begin
+        identifier = JsonPath.new('$.identification.doi').first(@cocina_json) ||
+                     JsonPath.new('$.description.identifier..uri').first(@cocina_json) ||
+                     JsonPath.new("$.description.identifier[?(@['type'] == 'doi')].value").first(@cocina_json)
+        if identifier&.start_with?('https://doi.org')
+          identifier
+        elsif identifier
+          URI.join('https://doi.org', identifier).to_s
+        end
+      end
+    end
+
+    # @return [String,nil] DOI (without https://doi.org/ prefix) if present
+    def doi_id
+      doi&.delete_prefix('https://doi.org/')
+    end
+
+    private
+
+    attr_reader :cocina_json
+  end
+end
diff --git a/lib/description/cocina_note.rb b/lib/description/cocina_note.rb
new file mode 100644
index 00000000..f649f871
--- /dev/null
+++ b/lib/description/cocina_note.rb
@@ -0,0 +1,22 @@
+class Description
+  class CocinaNote
+    def initialize(cocina_json:)
+      @cocina_json = cocina_json
+    end
+
+    # value for description.note where type=summary or type=abstract
+    # @return [Array<String>] description notes
+    def descriptions
+      @descriptions ||= JsonPath.new("$.description.note[?(@['type'] == 'summary' || @['type'] == 'abstract')].value").on(cocina_json)
+    end
+
+    # @return [String, nil] formatted description
+    def formatted_description(delimiter: '\n')
+      @formatted_description ||= descriptions.join(delimiter) unless descriptions.empty?
+    end
+
+    private
+
+    attr_reader :cocina_json
+  end
+end
diff --git a/lib/description/cocina_title.rb b/lib/description/cocina_title.rb
new file mode 100644
index 00000000..c294145d
--- /dev/null
+++ b/lib/description/cocina_title.rb
@@ -0,0 +1,25 @@
+class Description
+  class CocinaTitle
+    def initialize(cocina_json:)
+      @cocina_json = cocina_json
+    end
+
+    # Concatenated title.structuredValue for title with status "primary" if present
+    # Otherwise, title.value for first title
+    # @return [String, nil] formatted title
+    def formatted_title(delimiter: '\n')
+      @formatted_title ||= begin
+        titles = JsonPath.new("$.description.title[?(@['status' == 'primary'])].structuredValue[*].value").on(cocina_json)
+        if titles.present?
+          titles.join(delimiter)
+        else
+          JsonPath.new('$.description.title[0].value').first(cocina_json)
+        end
+      end
+    end
+
+    private
+
+    attr_reader :cocina_json
+  end
+end
diff --git a/lib/description/mods_formatted_name.rb b/lib/description/mods_formatted_name.rb
new file mode 100644
index 00000000..b509532c
--- /dev/null
+++ b/lib/description/mods_formatted_name.rb
@@ -0,0 +1,40 @@
+class Description
+  class ModsFormattedName
+    def initialize(mods_ng:)
+      @mods_ng = mods_ng
+    end
+
+    # Names with author roles.
+    # Otherwise, names without roles.
+    # Otherwise, first name with any role.
+    # Names are formatted as a string with ModsDisplay::NameFormatter.
+    # @return [Array<String>] formatted names
+    def formatted_names
+      @formatted_names ||= name_elements.map { |name_element| ModsDisplay::NameFormatter.format(name_element) }
+    end
+
+    private
+
+    attr_reader :mods_ng
+
+    def name_elements
+      names_with_author_roles.to_a.presence \
+      || names_without_roles.to_a.presence \
+      || [first_name_with_any_role].compact.presence \
+      || []
+    end
+
+    def names_with_author_roles
+      mods_ng.root&.xpath('mods:name[mods:role/mods:roleTerm[contains(text(), "AUT") ' \
+      'or contains(text(), "aut") or contains(text(), "author") or contains(text(), "Author")]]', mods: MODS_NS)
+    end
+
+    def names_without_roles
+      mods_ng.root&.xpath('mods:name[count(mods:role) = 0]', mods: MODS_NS)
+    end
+
+    def first_name_with_any_role
+      mods_ng.root&.at_xpath('mods:name[mods:role]', mods: MODS_NS)
+    end
+  end
+end
diff --git a/lib/description/mods_identifier.rb b/lib/description/mods_identifier.rb
new file mode 100644
index 00000000..0d9a5f0f
--- /dev/null
+++ b/lib/description/mods_identifier.rb
@@ -0,0 +1,23 @@
+class Description
+  class ModsIdentifier
+    MODS_NS = 'http://www.loc.gov/mods/v3'.freeze
+
+    def initialize(mods_ng:)
+      @mods_ng = mods_ng
+    end
+
+    # @return [String,nil] DOI (with https://doi.org/ prefix) if present
+    def doi
+      @doi ||= mods_ng.root&.at_xpath('mods:identifier[@type="doi"]', mods: MODS_NS)&.text
+    end
+
+    # @return [String,nil] DOI (without https://doi.org/ prefix) if present
+    def doi_id
+      doi&.delete_prefix('https://doi.org/')
+    end
+
+    private
+
+    attr_reader :mods_ng
+  end
+end
diff --git a/lib/description/mods_origin_info.rb b/lib/description/mods_origin_info.rb
new file mode 100644
index 00000000..1367ec84
--- /dev/null
+++ b/lib/description/mods_origin_info.rb
@@ -0,0 +1,25 @@
+class Description
+  class ModsOriginInfo
+    def initialize(mods_ng:)
+      @mods_ng = mods_ng
+    end
+
+    # Year from publication originInfo with a dateIssued
+    # Otherwise, year from first originInfo with a dateIssued
+    # @return [String,nil] four-digit year if present
+    def publication_year
+      @publication_year ||= begin
+        date_element = mods_ng.root&.at_xpath('mods:originInfo[@eventType="publication" ' \
+        'or @eventType="Publication" or @eventType="PUBLICATION"]/mods:dateIssued', mods: MODS_NS)
+        date_element ||= mods_ng.root&.at_xpath('mods:originInfo/mods:dateIssued', mods: MODS_NS)
+        if (matcher = date_element&.text&.match(/(\d{4})/))
+          matcher[1]
+        end
+      end
+    end
+
+    private
+
+    attr_reader :mods_ng
+  end
+end
diff --git a/lib/metadata/schema_dot_org.rb b/lib/metadata/schema_dot_org.rb
index 10cfd2b8..9397c4e6 100644
--- a/lib/metadata/schema_dot_org.rb
+++ b/lib/metadata/schema_dot_org.rb
@@ -32,6 +32,10 @@ def schema_type?
 
     private
 
+    def desc
+      @desc ||= Description.new(cocina_json: @cocina_json)
+    end
+
     def schema_type
       'Dataset' if dataset?
     end
@@ -45,34 +49,15 @@ def dataset?
     end
 
     def title_name
-      # title.value or concatenated title.structuredValue 1) for title with status "primary" if present 2) for first title
-      # required for Datasets
-      titles = JsonPath.new("$.description.title[?(@['status' == 'primary'])].structuredValue[*].value").on(@cocina_json)
-      return titles.join('\n') unless titles.empty?
-
-      JsonPath.new('$.description.title[0].value').first(@cocina_json)
+      desc.formatted_title
     end
 
     def description
-      # description.note where type=summary or type=abstract, concatenating with \n if multiple
-      # required for Datasets
-      notes = JsonPath.new("$.description.note[?(@['type'] == 'summary' || @['type'] == 'abstract')].value").on(@cocina_json)
-      return notes.join('\n') unless notes.empty?
-
-      # provide title (or other text?) in description if relevant note is missing
-      title_name
+      desc.formatted_description || title_name
     end
 
     def identifier
-      # identification.doi or identifier.uri or identifier.value with type "doi" (case-insensitive), made into URI if identifier only
-      identifier = JsonPath.new('$.identification.doi').first(@cocina_json) ||
-                   JsonPath.new('$.description.identifier..uri').first(@cocina_json) ||
-                   JsonPath.new("$.description.identifier[?(@['type'] == 'doi')].value").first(@cocina_json)
-      return unless identifier
-
-      return [identifier] if identifier.start_with?('https://doi.org')
-
-      [URI.join('https://doi.org', identifier).to_s]
+      [desc.doi].compact.presence
     end
 
     def access
@@ -91,54 +76,13 @@ def url
     end
 
     def creators
-      # contributor.identifier.uri or contributor.identifier.value with type "orcid" (case-insensitive), made into URI if identifier only
-      creators = []
-      contributors = JsonPath.new('$.description.contributor[*]').on(@cocina_json)
-
-      contributors.each do |contributor|
-        creators.push(
-          { "@type": 'Person',
-            "name": creator_name(contributor),
-            "givenName": given_name(contributor),
-            "familyName": family_name(contributor),
-            "sameAs": orcid(contributor) }.compact
-        )
+      desc.contributors.map do |contributor|
+        { "@type": 'Person',
+          "name": contributor.name,
+          "givenName": contributor.forename,
+          "familyName": contributor.surname,
+          "sameAs": contributor.orcid }.compact
       end
-
-      creators
-    end
-
-    def creator_name(contributor)
-      # contributor.name.value or concatenated contributor.name.structuredValue
-      JsonPath.new('$.name.value').first(contributor) || structured_name(contributor)
-    end
-
-    def structured_name(contributor)
-      # concatenated contributor.name.structuredValue
-      [given_name(contributor), family_name(contributor)].join(' ')
-    end
-
-    def given_name(contributor)
-      # contributor.name.structuredValue.value with type "forename"
-      JsonPath.new("$.name[0].structuredValue[*].[?(@['type'] == 'forename')].value").first(contributor)
-    end
-
-    def family_name(contributor)
-      # contributor.name.structuredValue.value with type "surname"
-      JsonPath.new("$.name[0].structuredValue[*].[?(@['type'] == 'surname')].value").first(contributor)
-    end
-
-    def orcid(contributor)
-      # contributor.identifier.uri or contributor.identifier.value with type "orcid" (case-insensitive), made into URI if identifier only
-      id_uri = JsonPath.new('$.identifier.uri').first(contributor)
-      return id_uri if id_uri.present?
-
-      orcid = JsonPath.new("$.identifier.[?(@['type'] == 'ORCID' || @['type'] == 'orcid')].value").first(contributor)
-      return if orcid.blank?
-
-      return orcid if orcid.start_with?('https://orcid.org')
-
-      URI.join('https://orcid.org/', orcid).to_s
     end
   end
 end
diff --git a/spec/model/purl_resource_spec.rb b/spec/model/purl_resource_spec.rb
index e099af51..25f266e5 100644
--- a/spec/model/purl_resource_spec.rb
+++ b/spec/model/purl_resource_spec.rb
@@ -302,11 +302,18 @@
             <identifier type="doi" displayLabel="DOI">https://doi.org/10.25740/bb051dp0564</identifier>
           </mods>
         EOF
+        allow(subject).to receive(:cocina_body).and_return <<~JSON
+          {
+            "identification": {"doi": "10.25740/bb051dp0564"}
+          }
+        JSON
       end
 
       it 'returns the DOI' do
         expect(subject.doi).to eq 'https://doi.org/10.25740/bb051dp0564'
         expect(subject.doi_id).to eq '10.25740/bb051dp0564'
+        expect(subject).to have_received(:mods_body)
+        expect(subject).to have_received(:cocina_body).at_least(:once)
       end
     end
 
@@ -317,11 +324,17 @@
           <mods xmlns="http://www.loc.gov/mods/v3" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:xlink="http://www.w3.org/1999/xlink" version="3.7" xsi:schemaLocation="http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-7.xsd">
           </mods>
         EOF
+        allow(subject).to receive(:cocina_body).and_return <<~JSON
+          {
+          }
+        JSON
       end
 
       it 'returns nil' do
         expect(subject.doi).to be_nil
         expect(subject.doi_id).to be_nil
+        expect(subject).to have_received(:mods_body)
+        expect(subject).to have_received(:cocina_body).at_least(:once)
       end
     end
   end