DECOR-dataset

A DECOR project contains one or more datasets. When there are multiple datasets, they are different versions of the same dataset. It is not recommended to create datasets for different healthcare projects in the same DECOR project.

A dataset consists of (healthcare) concepts. You can see a DECOR dataset as an hierarchical concept repository. Concepts should be well-defined and can be demonstrated with the following examples:

Examples

Female Body length Diabetes Monochorionic

The following datatypes are available (items printed as bold are part of the current DECOR implementation).

Datatype	Nederlands	Deutsch	Description
count	teller	Zähler	Countable (non-monetary) quantities. Used for countable types such as: pregnancies, steps (taken by a physiotherapy patient), number of cigarettes smoked in a day.
code	code	Code	A system of valid symbols that substitute for specified concepts e.g. alpha, numeric, symbols and/or combinations, usually defined by a formal reference to a terminology or ontology, but may also be defined by the provision of text
ordinal	ordinaal	Ordinal	Models rankings and scores, e.g. pain, Apgar values, etc, where there is a) implied ordering, b) no implication that the distance between each value is con- stant, and c) the total number of values is finite. Note that although the term ‘ordinal’ in mathematics means natural numbers only, here any integer is allowed, since negative and zero values are often used by medical professionals for values around a neutral point. Examples of sets of ordinal values: -3, -2, -1, 0, 1, 2, 3 -- reflex response values; 0, 1, 2 -- Apgar score values 1, 2, 3, 4,... -- ASA classification I, II, III, IV, ... -- Tanner scale
identifier	identificatie	Identifikation	Type for representing identifiers of real-world entities. Typical identifiers include drivers licence number, social security number, prescription id, order id, and so on.
string	string	Zeichenkette
text	string met opmaak	Zeichenkette mit Formatierung	A text item, which may contain any amount of legal characters arranged as e.g. words, sentences etc. Visual formatting and hyperlinks may be included.
date	datum	Datum	Represents an absolute point in time, as measured on the Gregorian calendar, and specified only to the day. Semantics defined by ISO 8601. Used for recording dates in real world time. The partial form is used for approximate birth dates, dates of death, etc.
datetime	datum+tijd	Datum+Zeit	Represents an absolute point in time, specified to the second. Semantics defined by ISO 8601. Used for recording a precise point in real world time, e.g. the exact date and time of the birth of a baby, and for approximate time stamps, e.g. the origin of an history observation which is only partially known.
complex	collectie van data	Sammlung von Daten
quantity	hoeveelheid	Menge	Quantitified type representing "scientific" quantities, i.e. quantities expressed as a magnitude and units. There are some "special" quantities (used in healthcare), explained later: for time durations duration shall be used for monetary amounts currency shall be used
duration	tijdsduur	Dauer	Is a quantity, represents a period of time with respect to a notional point in time, which is not specified. A sign may be used to indicate the duration is “backwards” in time rather than forwards.
boolean	boolean	Boolean	Items which are truly boolean data, such as true/false or yes/no answers.
blob	binair	Binär	Things that are typically stored as binary objects in the computer world and need to be rendered appropriately, e.g. images: like X-rays, computertomographic images; graphic: diagrams, graphs, mathematical curves, or the like – usually a vector image; icons: a sign or representation that stands for its object by virtue of a resemblance or analogy to it pictures: A visual representation of a person, object, or scene – usually a raster image.
currency	valuta	Währung	Monetary quantities
ratio	ratio	Ratio	A ratio of two Quantity values - a numerator and a denominator

The datatypes can be further restricted using the following datatype facets:

Facet	Description	Example	Applies to
unit	Unit for quantities	kg, mmol	quantity
minInclude	Range min include for quantities	1, 100	count, ordinal, quantity, currency
maxInclude	Range max include for quantities	1, 100	count, ordinal, quantity, currency
fractionDigits	Fraction digits for quantities"1" for at least 1 or "1!" for exactly 1	"1" for at least 1, "1!" for exactly 1	quantity
timeStampPrecision	Precisions for timing specs		date, datetime
default	Default value		all datatypes
fixed	Fixed value		all datatypes
minLength	Minimum length for strings		string
maxLength	Maximum length for strings		string

Facet timeStampPrecision takes the following values

timeStampPrecision	value
Y	at least year (YYYY)
Y!	only year (YYYY)
YM	at least month (MM) and year (YYYY)
YM!	only month (MM) and year (YYYY)
YMD	at least day (DD), month (MM) and year (YYYY)
YMD!	only day (DD), month (MM) and year (YYYY)
YMDHM	at least day (DD), month (MM) and year (YYYY), hour (hh) and minute (mm)