PrF UG glossary - Revision history

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2008-11-14T21:36:52Z

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__NOTOC__
== Glossary ==

{{PrF_UG_TOC_}}<div id='prf_ug'>

This Glossary defines terms used in this description of {{#var:Pr}}.
It is not meant to be an exhaustive list of terminology associated with object-oriented modeling.

=== Abstract Class ===

An abstract class cannot have instances.
It is identified with a hollow round icon:
e.g.,
<div>[[Image:PrF_UG_classes_class.abstract.gif|classes_class.abstract]]</div>
or
[[Image:PrF_UG_classes_class.metaclass.abstract.gif|classes_class.metaclass.abstract]].

=== Allowed Classes ===

A constraint on the values of a type-instance slot.
The value of the slot can only be an instance of the class
(or any of its children)
in the Allowed Classes list.

=== Application ===

The program that combines the {{#var:Pr}} knowledge base with a problem-solving method so that end users can use a {{#var:Pr}} knowledge base to solve a problem.

=== Boolean ===

A type of slot with a true or false value/ Boolean slots appear as checkboxes in {{#var:PrF}}.
A checked box signifies a true value.

=== Browser Key ===

The browser key of a class is one of its slots whose value is displayed when instances of this class are referred to by other instances' forms.

=== Cardinality ===

A slot facet that describes whether the slot has just one value
(''single'')
or more than one value (''multiple'').
In {{#var:PrF}},
Single is the default.

=== Class ===

An abstract representation of a concept in a domain as a collection of related classes.
For example,
a medical model might have ''protocol'', ''guidelines'',
and ''patient data ''as classes.
A class appears with a round gold icon in {{#var:PrF}}:
e.g.,
[[Image:PrF_UG_classes_class.gif|classes_class]],
[[Image:PrF_UG_classes_class.abstract.gif|classes_class.abstract]],
[[Image:PrF_UG_classes_class.metaclass.gif|classes_class.metaclass]],
or
[[Image:PrF_UG_classes_class.metaclass.abstract.gif|classes_class.metaclass.abstract]].
A class can have a set of slots that represent the attributes of the class.

=== Classes Tab ===

The {{#var:PrF}} part used to create,
view,
revise,
and save classes.

=== Concrete Class ===

Concrete classes can have instances.
They are identified by a solid round icon:
e.g.,
<div>[[Image:PrF_UG_classes_class.gif|classes_class]]</div>
or
[[Image:PrF_UG_classes_class.metaclass.gif|classes_class.metaclass]].

=== Direct Slot ===

A slot which is attached directly to a class (in contrast to a slot which is inherited).

=== Domain ===

A particular field of knowledge,
such as breast cancer.

=== Facet ===

An attribute of a slot.
Some facets depend on the value of the type facet.
For example,
an integer slot type has facets for Minimum and Maximum.

=== Float ===

A positive or negative real numeric value (e.g.,
1.0,
3.4e10, -0.3e-3),
used as a slot value.

=== Forms Tab ===

The {{#var:PrF}} part used to create the forms for acquiring instances of classes.
It may also be used to view,
revise,
and save the forms.

=== Frame ===

A frame is a primitive object that represents an entity in the domain of discourse.
In {{#var:PrF}},
a frame can represent a class,
a slot,
a facet,
or an instance.

=== Inheritance ===

A parent-child
(superclass-subclass)
relationship between two classes.
A child
(subclass)
inherits the slots of its parent classes (superclasses).

=== Inherited Slot ===

A slot that is attached to a class via inheritance from a superclass.

=== Instance <b>(KB value)</b> ===

Concrete occurrence of information about a domain that is entered into a knowledge base.
For example,
Fran Smith might be an instance for a Name slot.
An instance is entered via a form generated by {{#var:PrF}}.

=== Instance <b>(slot type)</b> ===

A type of slot whose value is the instance of a class.

=== Instances Tab ===

The {{#var:PrF}} part used to acquire instances of classes.
It may also be used to view,
revise,
and save the instances.

=== Integer ===

A positive or negative whole number (e.g.,
1,
2, -4). used as a slot value.

=== Knowledge-acquisition tool ===

A tool used to build a knowledge base by acquiring instances.
In {{#var:PrF}},
the forms comprise the KA tool.

=== Knowledge base (KB) ===

A set of instances of classes which may be used by PSMs.

=== Knowledge-based system ===

A computer system that includes a knowledge base about a domain and programs that include rules for processing the knowledge and for solving problems relating to the domain.

=== Metaclass ===

A template;
that is,
a class whose instances are themselves classes.

=== Ontology ===

A model of a particular field of knowledge - the concepts and their attributes,
as well as the relationships between the concepts.
In {{#var:PrF}},
an ontology is represented as a set of classes with their associated slots.

=== PAL ({{#var:Pr}} Axiom Language) ===

A plugin toolset that comprises engines for checking constraints and running queries on knowledge bases,
as well as a set of useful user interface components.

=== .pins file ===

A {{#var:PrF}} file in CLIPS format that contains instances.

=== .pont file ===

A {{#var:PrF}} file in CLIPS format that contains an ontology.

=== .pprj file ===

A {{#var:Pr}} file that contains a project.
A project file contains the customized form information and references to external sources of the domain information.

=== Problem-solving method (PSM) ===

A computer program that is used in conjunction with a knowledge base to answer questions or solve problems.

=== Slot ===

An attribute of a class.
For example,
a ''physician class'' might have ''name'', ''title'',
and ''phone number'' as slots.

=== Slot Type ===

A slot facet that identifies the kind of values a slot may have - any,
boolean,
float,
instance,
integer,
string,
or symbol.

=== Slots Tab ===

The {{#var:PrF}} part that allows you to create,
view,
edit,
and delete slots.

=== Symbol ===

An enumerated list of slot values,
such as red,
blue,
green.

</div>

@@ Line 1: / Line 1: @@
-__NOTOC__
+<noinclude>__NOTOC__== Glossary ==</noinclude>
-== Glossary ==
+<includeonly>= Glossary =</includeonly>
 {{PrF_UG}}<div id='prf_ug'>

@@ Line 9: / Line 9: @@
 An abstract class cannot have instances.
-It is identified with a hollow round icon:
+It is identified with a hollow round icon
-e.g., [[Image:PrF_UG_classes_class.abstract.gif|classes_class.abstract]]
+(e.g., [[Image:PrF_UG_classes_class.abstract.gif|classes_class.abstract]]
-or [[Image:PrF_UG_classes_class.metaclass.abstract.gif|classes_class.metaclass.abstract]].
+or [[Image:PrF_UG_classes_class.metaclass.abstract.gif|classes_class.metaclass.abstract]]).
 === Allowed Classes ===
@@ Line 46: / Line 46: @@
 For example, a medical model might have ''protocol'', ''guidelines'',
 and ''patient data ''as classes.
-A class appears with a round gold icon in {{#var:PrF}}:
+A class appears with a round gold icon in {{#var:PrF}}
-e.g., [[Image:PrF_UG_classes_class.gif|classes_class]],
+(e.g., [[Image:PrF_UG_classes_class.gif|classes_class]],
 [[Image:PrF_UG_classes_class.abstract.gif|classes_class.abstract]],
 [[Image:PrF_UG_classes_class.metaclass.gif|classes_class.metaclass]],
 or
-[[Image:PrF_UG_classes_class.metaclass.abstract.gif|classes_class.metaclass.abstract]].
+[[Image:PrF_UG_classes_class.metaclass.abstract.gif|classes_class.metaclass.abstract]]).
 A class can have a set of slots that represent the attributes of the class.
@@ Line 61: / Line 61: @@
 Concrete classes can have instances.
-They are identified by a solid round icon:
+They are identified by a solid round icon
-e.g., [[Image:PrF_UG_classes_class.gif|classes_class]]
+(e.g., [[Image:PrF_UG_classes_class.gif|classes_class]]
-or [[Image:PrF_UG_classes_class.metaclass.gif|classes_class.metaclass]].
+or [[Image:PrF_UG_classes_class.metaclass.gif|classes_class.metaclass]]).
 === Direct Slot ===
@@ Line 71: / Line 71: @@
 === Domain ===
-A particular field of knowledge,
+A particular field of knowledge, such as breast cancer.
 === Facet ===

@@ Line 2: / Line 2: @@
 == Glossary ==
-{{PrF_UG_TOC_}}<div id='prf_ug'>
+{{PrF_UG}}<div id='prf_ug'>
 This Glossary defines terms used in this description of {{#var:Pr}}.