diff --git a/catalog-v001.xml b/catalog-v001.xml
index 9a106b34..ffa8ef95 100644
--- a/catalog-v001.xml
+++ b/catalog-v001.xml
@@ -20,6 +20,7 @@
+
diff --git a/disciplines/catalog-v001.xml b/disciplines/catalog-v001.xml
index 8999fea8..f26d3964 100644
--- a/disciplines/catalog-v001.xml
+++ b/disciplines/catalog-v001.xml
@@ -21,6 +21,7 @@
+
diff --git a/disciplines/units/catalog-v001.xml b/disciplines/units/catalog-v001.xml
index 3de6733e..cf6a097e 100644
--- a/disciplines/units/catalog-v001.xml
+++ b/disciplines/units/catalog-v001.xml
@@ -21,6 +21,7 @@
+
diff --git a/multiperspective/catalog-v001.xml b/multiperspective/catalog-v001.xml
index f4b474b0..18887534 100644
--- a/multiperspective/catalog-v001.xml
+++ b/multiperspective/catalog-v001.xml
@@ -14,13 +14,14 @@
-
+
+
diff --git a/multiperspective/dataset.ttl b/multiperspective/dataset.ttl
new file mode 100644
index 00000000..f7505b97
--- /dev/null
+++ b/multiperspective/dataset.ttl
@@ -0,0 +1,104 @@
+@prefix : .
+@prefix owl: .
+@prefix rdf: .
+@prefix xml: .
+@prefix xsd: .
+@prefix rdfs: .
+@prefix skos: .
+@prefix dcterms: .
+@base .
+
+ rdf:type owl:Ontology ;
+ owl:versionIRI ;
+ owl:imports ,
+ ;
+ dcterms:abstract "Shared representation of datasets."@en ;
+ dcterms:contributor "Francesca Lønstad Bleken, SINTEF, NO"@en ,
+ "Gerhard Goldbeck, Goldbeck Consulting Ltd, UK"@en ,
+ "Otello Roscioni, Goldbeck Consulting Ltd, UK"@en ;
+ dcterms:creator "Emanuele Ghedini, University of Bologna, IT"@en ,
+ "Jesper Friis, SINTEF, NO"@en ;
+ dcterms:license "https://creativecommons.org/licenses/by/4.0/legalcode" ;
+ dcterms:publisher "EMMC ASBL"@en ;
+ dcterms:title "Dataset"@en ;
+ rdfs:comment "Contact: emmo@emmc.eu"@en ,
+ "The EMMO requires HermiT reasoner plugin in order to visualize all inferences and class hierarchy (ctrl+R hotkey in Protege)."@en ;
+ owl:versionInfo "1.0.0-rc1" .
+
+#################################################################
+# Object Properties
+#################################################################
+
+### https://w3id.org/emmo#EMMO_60577dea_9019_4537_ac41_80b0fb563d41
+:EMMO_60577dea_9019_4537_ac41_80b0fb563d41 owl:inverseOf :EMMO_61f264fa_1f23_47f0_aa1c_c947d0be56fc .
+
+
+### https://w3id.org/emmo#EMMO_61f264fa_1f23_47f0_aa1c_c947d0be56fc
+:EMMO_61f264fa_1f23_47f0_aa1c_c947d0be56fc rdf:type owl:ObjectProperty ;
+ rdfs:subPropertyOf :EMMO_2337e25c_3c60_43fc_a8f9_b11a3f974291 ;
+ rdfs:domain :EMMO_b21a56ed_f969_4612_a6ec_cb7766f7f31d ;
+ rdfs:range :EMMO_6f5af708_f825_4feb_a0d1_a8d813d3022b ;
+ rdfs:seeAlso :EMMO_60577dea_9019_4537_ac41_80b0fb563d41 ;
+ skos:prefLabel "isSignFor"@en ;
+ :EMMO_967080e5_2f42_4eb2_a3a9_c58143e835f9 "The inverse relation of hasSign."@en .
+
+
+### https://w3id.org/emmo#EMMO_6b78c119_f86c_4b5e_ba6c_b42d25a64122
+:EMMO_6b78c119_f86c_4b5e_ba6c_b42d25a64122 rdf:type owl:ObjectProperty ;
+ rdfs:subPropertyOf :EMMO_b2282816_b7a3_44c6_b2cb_3feff1ceb7fe ;
+ skos:prefLabel "hasDatum"@en ;
+ :EMMO_967080e5_2f42_4eb2_a3a9_c58143e835f9 "Relates a dataset to its datum."@en .
+
+
+### https://w3id.org/emmo#EMMO_7159549c_16a3_4dd3_b37d_e992ad0b0879
+:EMMO_7159549c_16a3_4dd3_b37d_e992ad0b0879 rdf:type owl:ObjectProperty ;
+ rdfs:subPropertyOf :EMMO_e58bd4f4_a343_4831_be59_bf753075edb0 ;
+ owl:inverseOf :EMMO_c58c799e_cc6c_4310_a3f1_78da70705b2a ;
+ rdfs:seeAlso :EMMO_c58c799e_cc6c_4310_a3f1_78da70705b2a ;
+ skos:prefLabel "isDescriptionFor"@en ;
+ :EMMO_967080e5_2f42_4eb2_a3a9_c58143e835f9 "The inverse relation of hasDescription."@en .
+
+
+### https://w3id.org/emmo#EMMO_e58bd4f4_a343_4831_be59_bf753075edb0
+:EMMO_e58bd4f4_a343_4831_be59_bf753075edb0 rdf:type owl:ObjectProperty ;
+ rdfs:subPropertyOf :EMMO_61f264fa_1f23_47f0_aa1c_c947d0be56fc ;
+ owl:inverseOf :EMMO_eb3518bf_f799_4f9e_8c3e_ce59af11453b ;
+ rdfs:domain :EMMO_35d2e130_6e01_41ed_94f7_00b333d46cf9 ;
+ rdfs:range :EMMO_c9805ac9_a943_4be4_ac4b_6da64ba36c73 ;
+ rdfs:seeAlso :EMMO_eb3518bf_f799_4f9e_8c3e_ce59af11453b ;
+ skos:prefLabel "isConventionFor"@en ;
+ :EMMO_967080e5_2f42_4eb2_a3a9_c58143e835f9 "The inverse relation of hasConvention."@en .
+
+
+### https://w3id.org/emmo/multiperspective/dataset#EMMO_9ae258e3_f79b_4ff3_a777_9c188b3c019c
+:EMMO_9ae258e3_f79b_4ff3_a777_9c188b3c019c rdf:type owl:ObjectProperty ;
+ rdfs:subPropertyOf :EMMO_e1097637_70d2_4895_973f_2396f04fa204 ;
+ rdfs:domain :EMMO_50d6236a_7667_4883_8ae1_9bb5d190423a ;
+ rdfs:range :EMMO_b4c97fa0_d82c_406a_bda7_597d6e190654 ;
+ skos:prefLabel "hasDimension"@en ;
+ :EMMO_967080e5_2f42_4eb2_a3a9_c58143e835f9 "A semiotic relation that relates a datum to its dimension."@en .
+
+
+#################################################################
+# Classes
+#################################################################
+
+### https://w3id.org/emmo#EMMO_194e367c_9783_4bf5_96d0_9ad597d48d9a
+:EMMO_194e367c_9783_4bf5_96d0_9ad597d48d9a rdfs:subClassOf [ rdf:type owl:Restriction ;
+ owl:onProperty :EMMO_6b78c119_f86c_4b5e_ba6c_b42d25a64122 ;
+ owl:someValuesFrom :EMMO_50d6236a_7667_4883_8ae1_9bb5d190423a
+ ] .
+
+
+### https://w3id.org/emmo#EMMO_b4c97fa0_d82c_406a_bda7_597d6e190654
+:EMMO_b4c97fa0_d82c_406a_bda7_597d6e190654 rdf:type owl:Class ;
+ rdfs:subClassOf :EMMO_b7bcff25_ffc3_474e_9ab5_01b1664bd4ba ;
+ skos:example """Examples of some Dimension individuals:
+- 'x-dimension': stand for the spatial dimension along the x-direction.
+- 'emergy_dimension': stand for the energy dimension in an energy spectrum.
+- 'number_of_samples': is a countable dimension that may stand for the index of a given sample in a series of samples."""@en ;
+ skos:prefLabel "Dimension"@en ;
+ :EMMO_967080e5_2f42_4eb2_a3a9_c58143e835f9 "A coded sign that stands for a dimension."@en .
+
+
+### Generated by the OWL API (version 4.5.26.2023-07-17T20:34:13Z) https://github.com/owlcs/owlapi
diff --git a/multiperspective/multiperspective.ttl b/multiperspective/multiperspective.ttl
index d851965b..136e5c6e 100644
--- a/multiperspective/multiperspective.ttl
+++ b/multiperspective/multiperspective.ttl
@@ -14,6 +14,7 @@
,
,
,
- .
+ ,
+ .
### Generated by the OWL API (version 4.5.9.2019-02-01T07:24:44Z) https://github.com/owlcs/owlapi