"This is only a foretaste of what is to come, and only the
shadow of what is going to be"
– The Times Newspaper, 11 June 1949
September 1939. With the German invasion of Poland, the United
Kingdom and France declare war on the Third Reich: it is the beginning of the Second World
War, a conflict that will change the
world.
Around the same time, in Bletchley Park (Buckinghamshire, UK) the Government Code and
Cypher School starts working on understanding the German
Enigma machine, a cipher device employed extensively by Nazi Germany and extremely
secure
because of the daily switch of the machine settings.
Cracking Enigma was considered fundamental to win the conflict, and a large staff of
cryptographers was involved for this purpose in September 1939.
Amongst them there was the young mathematician Alan Turing.
Already interested in
subjects such as relative computing, Turing was also keen on cryptanalysis and he played a
crucial role in improving
the cracking of intercepted coded messages. Testifying his work, in 1940 Turing wrote the
report
"Treatise on the Enigma", also known as "The Prof's Book"
from the nickname given to him by his colleagues at Hut 8, in Bletchley.
Despite his contribution to many scientific fields, Turing was
isolated from the professional world because of his conviction for gross indecency for
homosexual acts in 1952.
Only after many public requests the Government granted him an apology and Queen Elizabeth II
officially pronounced Turing pardoned in August 2014.
Nonetheless, over the years Turing has been broadly celebrated and remembered: in 1996 the
BBC broadcast "Breaking the Code", a television movie focused on the mathematician's
life;
in 1998 an official English Heritage blue plaque was unveiled at his birthplace in
London and in 2014 the movie "The Imitation Game" was theatrically released,
receiving many nominations and winning an Academy Award.
Finally, in 2012, on the 100th anniversary of his birth, many more organisations and
institutions all over the world honoured Turing and his legacy. Some examples include, but
are not limited to: the Italian graphic novel "Enigma: la strana vita di Alan
Turing";
the Google Doodle depicting a live action Turing Machine and the Alan Turing
Centenary Conference, an academic conference hosted by the University of Manchester,
where Turing worked up until his death.
Once chosen the domain of study and the 10 items that characterise it, all coming from different kinds of institutions (such as libraries, archives and museums), the first step in analysing them is the Knowledge Organization Process, through which the acquired data are described and represented through models, reflecting different levels of abstraction.
The Conceptual Map provides a first look into the descriptive process, depicting all the data coming from the different items using natural language and making the relationships between them and the core idea explicit.
The Conceptual Map is then translated into an E/R Model, a visual representation that allows to describe the data with a higher level of abstraction, rendering people, places, dates and subjects as Entities and their connections as Relationships.
The following step consists of coming back to the institutions and
providers of the items to better analyse
the metadata used for describing them by identifying which standards and general
guidelines were followed.
Certain institutions clearly stated which standard they applied (marked with an asterisk in the
following table),
while, where a proper declaration wasn't available, we decided to apply either the most
common standard generally
used by that kind of institution or a more generic metadata standard we considered
suitable for the specific provider.
Item | Item Type | Provider | Metadata Standard |
---|---|---|---|
Treatise on the Enigma | Text | The National Archives | *EAD |
Three-ring Enigma machine | Object | Mathematics: The Winton Gallery (Science Museum Group) | CDWA CCO |
Breaking the code | Movie | Princeton University Library | MARC21 |
Enigma:la strana vita di Alan Turing | Text | OPAC SBN | *MARC21 |
Alan Turing's 100th Birthday Doodle | Digital Art | Google Doodle Archive | Schema.org |
Alan Turing Centenary Conference | Video | University of Manchester/Videolectures.net | Dublin Core |
Photograph of Bletchley Park | Object | Getty Images Archive | *CDWA CCO |
Portrait of Alan Turing | Object | National Portrait Gallery | CDWA CCO |
Alan Turing Blue Plaque | Object | English Heritage | *MIDAS |
The Imitation Game: Original Motion Picture Soundtrack | Audio | OPAC SBN | *MARC21 |
Once defined the different standards, a further stage required to
compare and align the metadata elements
and properties notable for the description of the domain according to the standards'
vocabularies and rules.
Missing correspondences are identified by "N/A", while missing comparisons in the CCO vocabulary
have been taken,
when available, from its superset: the CDWA guidelines (marked with an asterisk in the following
table).
A deeper level of interpretation of the data is the one displayed in the Theoretical Model: here, starting from the items, subjects and general relationships inside the study domain, the Web is searched for additional relevant information, with the goal of specifically answering to the following questions:
The Theoretical Model produced according to natural language is then translated again following an Entity/Relationships approach into the Enhanced E/R Model that will be a refined version of the previous E/R Model reflecting the later enrichments.
At this stage an ultimate level of abstraction is provided,
moving from the theoretical model to the formal
representation given by the Conceptual Model.
Here an ontological approach is
followed and the
subjects/concepts and relationships depicted in the theoretical model are refactored according
to
the most suitable classes and properties found in already existing schemas,
vocabularies and ontologies.
At this point the data description has been exhaustively completed and the modelling activity can be considered fulfilled, leading to the next stage of the workflow, that is the one concerned with the production of new semantic data: the Knowledge Representation.
Going back to the chosen items, each one is described according to the properties already adopted in the Conceptual Model, realising one table for each item where the three columns correspond to the triple's elements -subject, predicate, object- and each row represents a statement.
CSV versions of the following tables can be downloaded by clicking here!
Subject | Predicate | Object |
---|---|---|
Treatise on The Enigma | eac-cpf:languageUsed | English |
Treatise on The Enigma | crm:P53_has_former_or_current_location | King's College Archive Centre |
Treatise on The Enigma | dcterms:type | Photocopied Typescript of the treatise |
Treatise on The Enigma | dcterms:created | c.1939-c.1942 |
Treatise on The Enigma | dcterms:subject | Three-ring Enigma cypher machine |
Treatise on The Enigma | dcterms:creator | Alan Turing |
Subject | Predicate | Object |
---|---|---|
Alan Turing Centenary Conference Opening | dcterms:date | 2012 |
Alan Turing Centenary Conference Opening | dcterms:creator | Barry Cooper, Stephen Furber |
Alan Turing Centenary Conference Opening | dcterms:isPartOf | Alan Turing Centenary Conference 2012 |
Alan Turing Centenary Conference Opening | frbr:ResponsibleEntityOf | University of Manchester |
Alan Turing Centenary Conference Opening | dcterms:spatial | Manchester |
Alan Turing Centenary Conference Opening | dcterms:subject | Alan Turing |
Subject | Predicate | Object |
---|---|---|
Photo of Bletchley Park | crm:P62_depicts | Bletchley Park |
Photo of Bletchley Park | dcterms:creator | Evening Standard |
Photo of Bletchley Park | frbr:ResponsibleEntity | Getty Images Archive |
Photo of Bletchley Park | dcterms:isPartOf | Hulton Archive |
Photo of Bletchley Park | dcterms:created | 7 January 1926 |
Subject | Predicate | Object |
---|---|---|
The Imitation Game Soundtrack | dcterms:title | The Imitation Game: Original Motion Picture Soundtrack |
The Imitation Game Soundtrack | dcterms:created | 2014 |
The Imitation Game Soundtrack | dcterms:spatial | New York |
The Imitation Game Soundtrack | dcterms:creator | Alexandre Desplat |
The Imitation Game Soundtrack | dcterms:publisher | Sony Music Entetainment |
The Imitation Game Soundtrack | dcterms:type | Music Record |
The Imitation Game Soundtrack | dcterms:subject | Alan Turing |
Subject | Predicate | Object |
---|---|---|
Alan Turing Google Doodle | dcterms:contributor | Jared Wierzbickb, Corrie Scalisi |
Alan Turing Google Doodle | dcterms:publisher | Google Doodle Archive |
Alan Turing Google Doodle | crm:P101_has_title | Alan Turing 100th Birthday |
Alan Turing Google Doodle | dcterms:creator | Sophia Foster-Dimino |
Alan Turing Google Doodle | dcterms:type | Digital art |
Alan Turing Google Doodle | dcterms:available | 2012 |
Alan Turing Google Doodle | dcterms:subject | Alan Turing |
Subject | Predicate | Object |
---|---|---|
Three-ring Enigma cypher machine | crm:P53_has_former_or_current_location | Germany |
Three-ring Enigma cypher machine | dcterms:creator | Arthur Scherbius |
Three-ring Enigma cypher machine | dcterms:type | Cypher machine |
Three-ring Enigma cypher machine | dcterms:created | 1934 |
Three-ring Enigma cypher machine | crm:P45_consists_of | Mixed Materials |
Subject | Predicate | Object |
---|---|---|
Breaking the code | dcterms:type | Video/Projected Medium |
Breaking the code | crm:P108_was_produced_by | Herbert Wise |
Breaking the code | schema:director | Cypher machine |
Breaking the code | dcterms:created | 1997 |
Breaking the code | crm:P72_has_language | English |
Breaking the code | dcterms:subject | Alan Turing |
Breaking the code | crm:P53_has_former_or_current_location | Princeton University |
Subject | Predicate | Object |
---|---|---|
Graphic Novel on Alan Turing's life | crm:P72_has_language | Italian |
Graphic Novel on Alan Turing's life | dcterms:type | Graphic Novel |
Graphic Novel on Alan Turing's life | bibframe:originDate | 2012 |
Graphic Novel on Alan Turing's life | dcterms:subject | Alan Turing |
Graphic Novel on Alan Turing's life | dcterms:creator | Tuono Pettinato |
Graphic Novel on Alan Turing's life | bibframe:title | Enigma: La strana vita di Alan Turing |
Graphic Novel on Alan Turing's life | crm:P53_has_former_or_current_location | Princeton University |
Graphic Novel on Alan Turing's life | bibframe:agent | Rizzoli Lizard |
Subject | Predicate | Object |
---|---|---|
Blue Plaque Alan Turing | schema:address | 2 Warrington Cresent, Maida Vale, London |
Blue Plaque Alan Turing | dcterms:creator | English Heritage |
Blue Plaque Alan Turing | dbpedia-owl:inscription | Alan Turing 1912-1954 Code-breaker and Pioneer of Computer Science was born here |
Blue Plaque Alan Turing | crm:P45_consists_of | Ceramic |
Blue Plaque Alan Turing | dcterms:subject | Alan Turing |
Subject | Predicate | Object |
---|---|---|
Portrait photo of Alan Turing | dcterms:type | Portrait |
Portrait photo of Alan Turing | dcterms:creator | Elliot & Fry |
Portrait photo of Alan Turing | crm:P53_has_former_or_current_location | National Portrait Gallery |
Portrait photo of Alan Turing | crm:P45_consists_of | Bromide print |
Portrait photo of Alan Turing | dcterms:created | 29 March 1951 |
Portrait photo of Alan Turing | crm:P62_depicts | Alan Turing |
Portrait photo of Alan Turing | crm:P49_has_former_or_current_keeper | Ethel Sara Turing |
Three significant items coming from different institutions have then been selected as subjects of the RDF Production process: first, the following URIs were created to describe significant entities of the chosen items; then, the prefixes for the chosen ontologies were declared and triples were written according to a Turtle serialisation, highlighting relations between the items and their entities, and, where possible, linking to other significant related resources and authorities (e.g. VIAF for personal and corporate names, GeoNames for places and locations, Getty AAT vocabulary for existing concepts).
https://w3id.org/alodturing
https://w3id.org/alodturing/item/photo-bletchley-park
https://w3id.org/alodturing/item/enigma-machine
https://w3id.org/alodturing/item/treatise-enigma
https://w3id.org/alodturing/place/bletchley-park
https://w3id.org/alodturing/place/germany
https://w3id.org/alodturing/date/7january1926
https://w3id.org/alodturing/date/23june1912
https://w3id.org/alodturing/date/7june1954
https://w3id.org/alodturing/date/1939-1942
https://w3id.org/alodturing/date/1934
https://w3id.org/alodturing/event/world-war-ii
https://w3id.org/alodturing/group/GCCS
https://w3id.org/alodturing/institution/national-museum-computing-bletchley-park
https://w3id.org/alodturing/institution/university-cambridge
https://w3id.org/alodturing/institution/kings-college-archive-centre
https://w3id.org/alodturing/object/alan-turing-statue
https://w3id.org/alodturing/object/cypher-machine
https://w3id.org/alodturing/person/alan-turing