== wanted entities ==

Domain model:

'''observation'''
* Characteristic: 'is a' or 'has a' statements about an object
* ObservableFeature: characteristic observed (is/has) or question asked (what is?)
	* Measurement: feature defined by description, unit, dataType, permittedValue
	* PermittedValue: a categorical value state for Measurement 
* ObservationTarget: target of observation
	* Individual: ObservationTarget consisting of one individual
	* Panel: ObservationTarget consisting of group of individuals
* Protocol: procedure of observation on a defined set of features
	* discussion: many-to-many OR xref relation with Feature?
	* see PhenotypeMethod discussion
* ProtocolApplication: one bundle of values for exactly one target
	* xref to ObservationTarget (e.g. Individual, but also SNP)
	* xref to Protocol
	* discussion: xref to DataSet?
* Observation: value relation between ProtocolApplication and ObservableFeature
	* xref to ProtocolApplication
	* xref to ObservableFeature
	* (no xref to Target, this is via ProtocolApplication)

'''organization'''
* Study: a bundle of experiments typically published in a paper
	* discussion: bundle of Experiment, i.e. StudyElement?
* Experiment: a story of experimental objectives and outcomes
	* discussion: refers to dataSets?
* DataSet: a group of ProtocolApplication
	* discussion: homogeneous (i.e. using one protocol only?)
* SelectionCriteria: conditions of relationship between Panel
	* xref to Source and Target panel
	* has: number of individuals, details
	* discussion: how to formalize

'''attribution'''
* Contact: an entity having contact details such as address
* Person: to refer to natural actors in the process
* Organization: organization actor, Can this also be a used when we need to acknowledge a funder?
* PersonAffiliation: association between individual and Organization
* Submission: the event of data contribution
	* dicussion: what are Submissable items? I.e. can have Contribution
* Contribution: metadata describing Role of Person in a Study (?)
* Licences: Can we use CC licences, attach to Study Details or Data sets?
 

'''references'''
* Hotlinks: hyperlinks to external? Or internal?
* Citation: literature reference
	* discussion: what entities can have references?
* OntologyReference: reference to coding lists
	* Species: reference to species definitions
* AlternateIds: alternative identifiers
* FeatureAnnotion: qualitative association between Feature and OntologyTerm
	* has 'exactmatch' and 'description'
	
'''genome'''
* SequenceCharacteristic
	* Marker: genomic variable site
	* Allele: alternative alleles of marker
	* Genotype: valid genotypes for a marker
* SequenceRelation

	
'''gwas central specific'''
* FrequencyCluster
	* can be modelled as Protocol?
* GenotypeFrequency
	* can be modelled as Protocol?
* AlleleFrequency
	* can be modelled as Protocol?
* SamplePanel
	* is a Panel with panelType=SamplePanel?
	* is a Panel with panelType=AssayedPanel?
* UsedMarkerset
	* can be modelled as Protocol? or DataSet?
* EffectSize
	* can be modelled as Protocol?