Currently in GSIM:
Definition: A tool conceived to record =
the information that will be obtained from the Observation Units (p. 151).&=
Explanatory Text: The Instrument descirbes the tool used to coll=
ect data. It could be a traditional survey, a set of requirements for a sof=
tware collection program, a clinical procedure, etc.
Definition: A concrete a=
nd usable tool for gathering information based on the rendering of the desc=
ription made by an Instrument (p. 153).
Explanatory Text: This represe=
nts an implementation of an Instrument. It describes the way in which an In=
strument has been translated from a design to a concrete tool. It could rep=
resent a printed form, a software program made following a specific technol=
ogical paradigm (web service, web scraping robot, etc), the software used b=
y a specialised device to collect data, etc. When it describes a Survey Ins=
trument, it can contain descriptions of how each construct (e.g. Questions,=
Value Domains, validation Rules contained in the Instrument) is implemente=
At first glance, the definitions of Instrument and Instrument Imple=
mentation are confusing because they both refer to tools - one for =
recording information and another for gathering i=
nformation. It is difficult to understand the difference between the two ob=
jects as the exxamples in the Explanatory text are similar.
An alternate defintion and explanatory text for Instrument:
Definition: A means conceived to gather the information that will be obta=
ined from the observation units.
Explanatory Text: The Instrument desc=
ribes the means used to collect data. It could be a traditional survey, a s=
et of requirements to be met by=
a software collection program, or a clinical procedure, etc.
e specification of an Instrument is "implementation independent".=
In other words, it does not depend on the way(s) in which the Instrument w=
ill be rendered (eg on paper or via software) to become a usable tool for g=
The definition of Instrument and Inst=
rument Implementation could be amended (see suggested solution) to include =
the fact that an Instrument is format and platform independent, whereas Ins=
trument Implementation is when an Instrument is put into a particular =