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.

This template describes how to represent a UK_Defence depth of maintenance, using Class.

This represents the defined level of complexity for the maintenance and repair of unserviceable or damaged product.

For further information about the representation of a depth of maintenance, see below.

The depth of maintenance business object is used by those UK_Defence Data Exchange Specifications that require information about the defined level of complexity for the rectification of a damaged or unserviceable product.

Figure 1 — Graphical Representation for Business Object depth of maintenance

The definition of a depth of maintenance object is: Data about the defined level of complexity for the maintenance and repair of unserviceable or damaged product.

Attribute name	Attribute description	Attribute type	Optionality
Description	This is the description of the depth of maintenance	Intrinsic	Mandatory
ID	This is the identifier of the depth of maintenance.	Identifier	Mandatory
Name	This is the name of the depth of maintenance. Examples (from DEF STAN 00-41/3): (a) Level 1. Servicing and day to day preparation. It may include such operations as functional testing, replenishment, servicing, re-arming, role changing, minor modification, fault diagnosis and corrective maintenance by replacement, adjustment or minor repair. (b) Level 2. Corrective maintenance by replacement, adjustment or minor repair including fault diagnosis and minor authorized modifications, within specified times using generally provisioned resources. (c) Level 3. Corrective maintenance in greater depth than Level 2. It may include such operations as repair, partial reconditioning and modification requiring special skills, special equipment or a relatively infrequently used capability which is not economic to provide generally; but which is short of complete strip, reconditioning and re-assembly. (d) Level 4. That maintenance which is full reconditioning, major conversions, or major repairs. (e) Exception. The Army, other than for aircraft, has different terminology and definitions of such levels: (i) User maintenance: servicing and day to day preparation. (ii) Unit repairs: minor corrective maintenance by replacement, adjustment or minor repair including fault diagnosis and minor authorized modifications, within specified times and normally using First Line engineering support unit resources. (iii) Field repairs: corrective maintenance in greater depth than unit repairs, normally using resources of a Second Line engineering support unit. (iv) Base repairs: maintenance to base inspection standard in greater depth than field repairs, normally using resources held by a Third Line engineering support unit.	Intrinsic	Mandatory

Table 1 — depth of maintenance attribute details

The following input parameters are defined for this template:

The following reference parameters are defined for this template:

The following parameter combinations specify a uniqueness constraint:

Unique constraint: Unique depth of maintenance

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

Any given identifier shall only be assigned to a depth of maintenance once.

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.

External_class

-- Mark the External_class entity as referable when this template is used.
-- In other words, bind the External_class instance to the reference
-- parameter ext_class
%^ext_class = External_class%
External_class.id = '/NULL'
External_class.description = '/IGNORE'
External_class.name = '/NULL'

-- Mark the External_class_library entity as referable when this template is used.
-- In other words, bind the External_class_library instance to the reference
-- parameter ext_class_lib
%^ext_class_lib = External_class_library%
External_class.external_source -> External_class_library
External_class_library.id = 'urn:plcs:rdl:uk_defence'
External_class_library.description = '/IGNORE'
/identifier(
    ID=@ID,
    source_organization=@source_organization,
    type='Identification_code',
    items=^ext_class)/
%^depth_of_main = $identifier.identifier%
/identifier(
    ID=@name,
    source_organization=@name_source_organization,
    type='Name',
    items=^ext_class)/
/assigning_descriptor(
    descr=@description,
    class_name='Description',
    ecl_id='urn:plcs:rdl:uk_defence',
    is_assigned_to=^ext_class)/

Entity in path	Value	Inherited from
External_class.id	'/NULL'	Class.id
External_class.description	'/IGNORE'	Class.description
External_class.name	'/NULL'	Class.name
External_class_library.id	'urn:plcs:rdl:uk_defence'	—
External_class_library.description	'/IGNORE'	—