Template:— information_system (info_sys)
Context:— UK_Defence

Date: 2009/04/17 09:34:16
Revision: 1.2

Cover Contents Description Bus. perspective Bus. obj.Model diags.Input params.Ref. params.Instantiation path Instance diags.Characterizations Issues in situ

This section specifies the template information_system.

NOTE The template has been defined in the context of UK_Defence. Refer to the business context for details of related templates.

NOTE An explanation of a template and the associated instantiation path is provided in the Template overview section.

Description

This template describes how to represent a UK_Defence information system, using Organization. This mapping, using Organization, enables the source of an identifier to be an information system as any information system for exchange will be given an identifier by a specific organization.

This information object represents the hardware, software and infrastructure components that provide data handling facilities.

An information system has the ability to provide automatically generated identifiers for other information objects, such as tasks and faults.

For further information about the representation of an information system, see below.

Business perspective

This information object represents the hardware, software and infrastructure components that provide data handling facilities.

An information system has the ability to provide automatically generated identifiers for other information objects, such as tasks and faults.

Business object definition

Figure 1 — Graphical Representation for Business Object Information System

Record:

The definition of a Identifier object is: This information object represents the hardware, software and infrastructure components that provide data handling facilities.

An information system has the ability to provide automatically generated identifiers for other information objects, such as tasks and faults.

Attribute name	Attribute description	Attribute type	Optionality
ID	This is the identifier of the information system.	Identifier	Mandatory

Table 1 — Identifier attribute details

Model diagrams

The EXPRESS-G diagram in Figure 2 shows the templates and EXPRESS entities that are required to represent the template "information_system". The text highlighted in blue shows the template parameters.

Figure 2 — An EXPRESS-G representation of the Information model for information_system

The graphic for the template to be used in other EXPRESS-G diagrams is shown in Figure 3 below.

Figure 3 — The graphical representation of the information_system template

Input parameters

The following input parameters are defined for this template:

ID (Type='STRING')

This is the identifier of the information system.

items (Type= 'SELECT (organization_or_person_in_organization_item)' )

The items to which the information_system is assigned

Reference parameters

The following reference parameters are defined for this template:

information_system(Type='ENTITY (Organization)')

Allow the Organization entity instantiated in this path to be referenced when this template is used.

Note: The Organization entity can be referenced in a template path by:

%^target = $information_system.information_system%

where target is the parameter to which the Organization is bound.

Uniqueness constraints

The following parameter combinations specify a uniqueness constraint:

Unique constraint: Unique identifier

Each instance of the entity (Organization) within the data set shall be uniquely identified by the following parameters on this template (information_system) namely: ID.
The instance is referenced by the following template parameter: information_system.

Any given identifier shall only be assigned to an information system once.

Instantiation path

The instantiation path shown below specifies the entities that are to be instantiated by the template.

A description of templates and the syntax for the instantiation path is provided in the Templates Help/Information section.

/assigning_organization(
    org_id=@ID,
    org_id_class_name='System_identification_code',
    org_id_ecl_id='urn:plcs:rdl:uk_defence',
    org_assgn_class_name='Creator_of',
    org_assgn_ecl_id='urn:plcs:rdl:std',
    items=@items)/
%^information_system = $assigning_organization.organization%

Instance diagrams

The instance diagram in Figure 4 shows an example of the EXPRESS entities and templates that are instantiated by the template:

/information_system(id='CATIA ID1234', items='#129')/

(an illustration of the consolidated information_system template is shown in Figure 5 below.)

Figure 4 — Entities instantiated by information_system template

The instance diagram in Figure 5 shows the graphic symbol for the template that is to be used in other instance diagrams. The example template is:

/information_system(id='CATIA ID1234', items='#129')/

Figure 5 — Instantiation of information_system template

Characterizations

No common characterizations of the template information_system have been identified. However, the ISO 10303-239 EXPRESS model may enable other assignments to the entities instantiated by the template.