Wikidata:WikiProject Cultural venues/Data structure/Data modelling issues

The following page is focusing on presenting the data modelling issues and data cleansing reports.

Items confounding architectural structures and organizations

This modelling issue is described in the WikiProject Performing arts. This page also includes examples, instructions for disentangling conflated items and queries for maintenance tasks.

Other Cases of Problematic Data Modelling

1. Issue: Director/manager for a venue (only Flanders Art Institute)

Description:	A venue cannot be managed by a director. A venue is either owned by (P127) an agent or there is an operator (P137) (typically an organization).
List of problematic items:	Maintenance list
Proposed sulution:	All director / manager (P1037) statements should be removed from the venue items and be applied to the related corporate body items instead.
Progress data cleansing:	19.11.2019 → 7 12.12.2019 → 4 19.12.2019 → 3

2. Issue: List of theatres (venues), with their various type statements (only Flanders Art Institute)

Description:	Incorrect use of the property instance of (P31) - some items are problematic as Flanders Art Institute venue IDs are refered as organisations or business related definitions.
List of problematic items	List of Flanders Art Institute venues with multiples type of venues List of Flanders Art Institute venues and defined as organization.
Proposed solution:	# Remove any instance of (P31) statements that refer to an organization. Create a separate item for the organization (sometimes you may want to proceed the other way round, creating a new item for the theatre building; you may also inspect the list of reverse statements to see to which type incoming statements predominantly refer to).
Progress data cleansing:	19.11.2019 → 697

3. Issue: Music festival

Description:	How to model festivals? - If the “festival” also acts as production company or organizer, we need at least two distinct items - one for the event series, and another one for the organization. - See: https://www.wikidata.org/wiki/Q3070011 (this item currently combines the two aspects, which is problematic).
List of problematic items:	List of music festivals
Proposed solution:	# Create item for the music festival (as a recurring event) and an item for the organization. Transfer the Flanders Art organization ID from the music festival to the organization. There is already a infobox template for music festivals (en, ger, f, it), which could be used for festivals. https://en.wikipedia.org/wiki/Template:Infobox_music_festival
Progress data cleansing:	19.11.19 → 34 19.12.2019 → 32

4. Issue: Auditorium and stage refer to the same item

Description:	Should auditorium (Q230752) or stage (Q194428) be used to refer to the specific room where a performance was given? Should the two be merged?
Data impact:	not available
Proposed sulution:	Stage and auditorium should be managed separately. The data merge implicit that a new item will be created. Comparing the two definitions, I identified that there is no connection between auditorium and stage. From an ontology perspective, correlation of stage is stronger to the performance than the auditorium.
Status:	in process

5. Issue: Venues refering to music festivals

Description:	There are Flanders Art Institute venues ID refering to a music festival.
List of problematic items	Maintenance list
Proposed sulution:	Option A: Create a separate item for the venue. Option B: Remove the statement instance of music festival.
Progress statistcs:	19.11.2019 → 7

6. Issue: List of theatres (venues), with their various type statements (only Flanders Art Institute)

Description:	Incorrect use of the property instance of (P31) - Superclasses
Data impact:	only Flanders Art Institute venues - 697 records (3.10.2019)
List of problematic items	List of Flanders Art Institute venues with multiples type of venues
Proposed sulution:	Remove any instance of (P31) statements that refer to a superclass of any of the other types. Example: drive-in theater (Q786922) is a subclass of outdoor cinema (Q1454553), which is in turn a subclass of movie theater (Q41253); thus items of the type drive-in theater (Q786922) do not require another instance of (P31) statement referring to movie theater (Q41253).
Status:	pending

4. Issue: Template

Description:	Example
Data impact:	Example
Proposed sulution:	Example
Status:	Example

Progress stastics Data Quality Issues

Quality Issue	Flanders Art Institute	Flanders Art Institute, only Switzerland
Venues w/o Street adress street address (P6375)	Maintenance list	Maintenance list
Venues w/o City located in the administrative territorial entity (P131)	Maintenance list	---