DMWG Glossary v0.2 - Ken Sall Consulting

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DMWG Glossary v0.2

DRAFT

December
30
, 2004


1

of
8

Glossary

Metadata Working Group

Department of Homeland Security


Glossary of Terms


The terms and their definitions provided in the table below have been drawn from the working definitions used by

glossary
contributors
as well as a

number of sources

includ
ing OASIS and
W3C

publications
,

and

ISO/IEC 11179 Parts 1
-
6
.

The principal

sources

used for this version of the glossary (v0.1)

are listed in the next section.

This version of the glossary (v0.1) is an initial
strawperson
draft release provided to the CDT
-
FG for comment.


M
any of the

terms
listed in the table below
are overloaded
,
having different meaning, or usage,

within different domain
s
. For the most
part, the underlying conce
pt, at the highest level of abstraction, associated with a term is consistent
across domains. However, there is
often considerable disparity in the working definition
s.

These different working definitions, unless

they are exposed,

can
greatly
obfuscate communications between the many stakeholder domains that are represented, or sho
uld be represented, within the DHS EA
and MCOE community of interest.

These stakeholder domains include enterprise architecture, data modeling
, data warehousing, data
exchange, applications

development
,
communications and networking, and
operations (e.g.,
command
posts
and watch center
s
,
processing stations, ports of entry, field enforcement and patrol).


The glossary does not attempt
to
harmonize a common vocabulary across domains, but rather to provide working definitions for the
MCOE
community of interes
t

(in the default namespace sense), and to expose, i.e., make explicit, the different working definitions
within the different stakeholder domains. The emphasi
s should be on articulating
relevant
concepts and distinguishing between related
concepts, at var
ious levels of abstraction, rather than on achieving consensus on the definition of a specific term, e.g., “Metadata”.



DMWG Glossary v0.2

DRAFT

December
30
, 2004


2

of
8

Term

Acronym

Definition

Source

Attribute


A characteristic of an object or entity

ISO 11179, Metadata
Registries (MDR)


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䅴瑲楢畴e


塍i㨠䄠Wa浥
-
value pair contained in an XML element’s start
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-

-
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-

-
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Clf



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B
a獩挠扵獩湥獳⁤a瑡⁩瑥t

瑨慴⁤t獣物扥
s

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C潭灯湥湴o


DMWG Glossary v0.2

DRAFT

December
30
, 2004


3

of
8

Term

Acronym

Definition

Source

Data


A representation of facts, concepts, or instructions in a
formalized manner, suitable for communications,
interpretation, or processing by humans or by automatic means.

ISO 11179, Metadata
Registries (MDR)



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c牡浥睯w欬′〠
䵡y′〰㌠
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䑡瑡⁅汥浥湴


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䑡瑡⁍t



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a

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㌩⁁

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a灰汩ca瑩潮
.


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-
re污瑩潮l桩灳

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c牡浥睯w欬′〠䵡y′〰㌠
⡄牡晴f

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y


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pe灴敭扥爠㈰r4

DMWG Glossary v0.2

DRAFT

December
30
, 2004


4

of
8

Term

Acronym

Definition

Source

Data Representation


Description of how data is described within the property and
object layers. Value type of a data object

Data
Reference Model,
Volume I, Version 1.0,
September 2004

Data Type


A specification of the permissible content for a class of objects,
where the content can be comprised of one or more literal
values, i.e., positive integer, or any complex data structure, i
.e.,
hierarchy of child elements within an XML core component.


Data Type


Software: A

set of data with values hav
ing predefined
characteristics, e.g., integer, floating point
number, character,
string, pointer.


Data Warehouse


An implementation of an i
nformational database used to store
sharable data sourced from an operational database
-
of
-
record.
It is typically a subject database that allows users to tap into a
company's vast store of operational data to track and respond to
business trends and facili
tate forecasting and planning efforts.

Data Warehouse Glossary
,
http://www.etfinancial.com/da
taglossary.htm


Datatype


XML Schema: A

3
-
tuple, consisting of a) a set
of distinct
values, called it
s value space
, b) a set of lexic
al
representations, called its
lexical

space, and c) a set of facet
s
that characterize propert
ies of the value space
, individual
values or lexical items.

XML Schema Part 2:
Datatypes Second Edition

Document Type
Definition

DTD

W3C Recommendation. Document centric XML schema
language.


Element


XML: The fundamental building block of an XML document.
XML elements can contain other elements and/or text data.
XML elements are composed of a start tag, content, and end
tag.


En
tity


A class of objects


Entity


XML: The storage
units

comprising an

XML document

Extensible Markup Language
(XML) 1.0 (Third Edition)

DMWG Glossary v0.2

DRAFT

December
30
, 2004


5

of
8

Term

Acronym

Definition

Source

Exchange Model




eXtensible Markup
Language

XML

A

subset of SGML. Its goal is to enable generic SGML to be
served,

received, and processed on the Web in the way that is
now possible with HTML. XML has been designed for ease of
implementation and for interoperability with both SGML and
HTML.

Extensible Markup Language
(XML) 1.0 (Third Edition)
,
http://www.w3.org/TR/REC
-
xml/


Information


Contextual meaning associated with, or derived from data


Information
Exchange Package


Set of data elements used to support the sharing of data within
a particular business context. Sta
ndard message structure.
Actual set of data that is requested or produced from one unit
of work to another

Data Reference Model,
Volume I, Version 1.0,
September 2004

Logical Data Model

LDM

XML: A data model that defines the XML schema data
structures. Th
e LDM bridges the gap between the CDM and the
PDM.


Metadata


Data that defines and describes other data or processes

ISO 11179, Metadata
Registries (MDR)


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c牡浥睯w欬′〠䵡y′〰㌠
⡄牡晴f

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⡄牡晴f

DMWG Glossary v0.2

DRAFT

December
30
, 2004


6

of
8

Term

Acronym

Definition

Source

Ontology


(1) collection of information, gener
ally including information
about classes and properties

(2) the information contained in an ontology document

OWL Web Ontology
Language

Guide, W3C Recommendation
10 February 2004,
http://www
.w3.org/TR/2004/R
EC
-
owl
-
guide
-
20040210/


Physical Data Model

PDM

A data model that specifies the constructs for data storage
and/or the encoding for data exchange


Physical Data Model
(PDM)


XML: An XML schema. The XML schema may be a DTD,
W3C XML Schem
a, or other XML schema language, e.g.,
RELAX NG or
Schematron


Property


A characteristic common to all members of an object class

ISO 11179, Metadata
Registries (MDR)


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-
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㈩O
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湡浩湧.

ㄩ1
呩洠Te牮e牳
-
ieeⰠ,a浥猠
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䅭A物ra測⁍ay′〰

㈩⁓敭O湴nc⁗e戬⁗㍃Ⱐ
桴h瀺p⽷睷⹷㌮潲g⼲〰ㄯ獷s


DMWG Glossary v0.2

DRAFT

December
30
, 2004


7

of
8

Term

Acronym

Definition

Source

Service Oriented
Architecture

SOA

A
n architectural style whose g
oal is to achieve loose coupling
among interacting software agents. A service is a unit of work
done by a service provider to achieve desired end results for a
service consumer. Both provider and consumer are roles played
by software agents on behalf of th
eir owners.

O’Reilly Web Services
te扳楴eⰠ
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p汯l


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浩g桴⁨慶h
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fn景f浡瑩潮⁍潤敬⁶
㈮O

呡x潮潭y


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Ty灥


䄠摥獣物灴楯渠潦⁡
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a湤⁲n污瑩潮l桩灳Ⱐan搠獥浡湴楣献


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䄠Ae戠獥牶楣e⁩猠愠獯晴fa牥⁳
y獴敭⁤s獩g湥搠瑯⁳u灰潲琠
楮ie牯灥牡扬e慣桩湥
-

-
浡m桩湥⁩湴敲ac瑩潮癥爠r 瑷潲t⸠
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-
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畳楮u⁓佁m
-
浥獳m来猬⁴y灩捡汬y⁣潮oeye搠畳dng⁈ 呐⁷楴栠 渠塍i
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-
牥污瑥搠獴a湤n牤献

te戠be牶楣e猠䝬潳獡sy

t㍃ t潲歩湧⁇ 潵瀠乯瑥‱ㄠ
ce扲bary′〰㐠

眮w㌮潲g⽔L⼲〰㐯N佔b
-

-
g汯獳
-
㈰〴〲ㄱO


塍i⁎a浥獰mce


A

獩s灬攠浥瑨潤⁦潲ⁱ畡汩fy楮g⁥汥浥湴na湤⁡瑴物r畴攠湡浥猠
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瑨敭⁷楴栠湡浥獰sce猠楤e湴n晩f搠dy 啒f⁲ 晥re湣es


塍i⁐牯r楬e


䅮⁘Mi 牥灲es
e湴慴楯測n潲⁤o獣物灴楯測映摡ta⁡n搠摡瑡t
牥污瑩潮l桩灳⁷桩c栠浡y 扥⁡獳潣楡瑥搠睩瑨⁩湦潲浡瑩潮m
c潮瑥o琬⁩湦潲浡瑩潮⁳桡m楮iⰠ,湤⽯爠na瑡⁤tsc物灴楯湳


DMWG Glossary v0.2

DRAFT

December
30
, 2004


8

of
8

Term

Acronym

Definition

Source

XML schema


A specification to define the structure of XML documents and
to specify datatypes for att
ribute values and element content
. In
addition to the DTD, there are several XML schema languages
including XML Schema (W3C),
Schematron
, and RELAX NG


XML Schema
Language

XSD

(filename
extension)

W3C Recommendation. Specification

for defining the
structu
re, content and semant
ics of XML documents. D
efines a
richer s
et of datatypes than the
DTD.
The XML Schema

language
support
s

namespaces.



Terminology Sources




Data Reference Model, Volume I, Version 1.0, September 2004



Extensible Markup Language (XML) 1
.0 (Third Edition)
,
http://www.w3.org/TR/REC
-
xml/



Glossary for the OASIS Web

Service Interactive Applications (WSIA/WSRP)
,
http://www.oasis
-
open.org/committees/wsia/glossary/wsia
-
draft
-
glossary
-
03.htm




ISO/IEC 11179 Parts 1
-
6
. The 11179 documents used as references for this version of the glossary (v0.1) are not the current
versions
, most being final committee drafts
released in the 2003 timeframe.



Namespaces in XML
,
http://www.w3.org/TR/REC
-
xml
-
names/




OWL Web Ontology Language Guide,
http://www.w3.org/TR/owl
-
guide/




W3C Glossary and Dictionary
,
http://www.w3.org/2003/glossary/

(outdated informative reference)
.



XML Schema Part 2: Datatypes Second Edition, W3C Recommendation 28 October 2004,
http://www.w3.org/TR/xmlschema
-
2/




OASIS/ebXML Registry Information Model v2.5
, Committee Approved Specification, OASIS/ebXML Registry Technical
Committee, June 2003