Terms: m Terminology index
Note:
The terminology developed during the PLCS project has been included "as is".
A number of the terms are still in Draft

The terms defined in the terminology dictionary and in the Business DEXs.

maintain (v)
  Definition: Retain and preserve the fully serviceable condition of the product-in-focus within its currently allowed configurations and intended use.

NOTE    Eg inspection and determination of condition, remove, repair, fault isolation, cleaning, overhaul, servicing.

 
  Source:

[1] PLCS terminology dictionary, 2000.

 
  Version: 2.1  
  Status: complete  
maintainability
  Definition: The ability of a product instance under stated condition of use, to be retained in or restored to a specified condition when maintenance is performed by personnel having specified skill levels under stated conditions and using prescribed procedures and resources.  
  Source:

[1] Def Stan 00-49, The United Kingdom Ministry of Defence Standard for Reliability and Maintainability MOD Guide to Terminology Definitions Issue : 1 , 26-Jan-96.

 
  Version: 1.1  
  Status: in_work  
maintainer
  Definition: The person who maintains the product instance.  
  Source:

[1] PLCS terminology dictionary, 2000.

 
  Version: 1.1  
  Status: in_work  
maintenance (n)
  Definition: The actions carried out to maintain a product.  
  Source:

[1] PLCS terminology dictionary, 2000.

 
  Version: 3.1  
  Status: complete  
maintenance activity
  Definition: Activity to detect and resolve actual or potential shortfalls in functional capability.

NOTE    Eg detect and diagnose failure, inspect, test, strip, assembly, modify, calibrate, perform operational and support tasks (eg fuel).

 
  Source:

[1] PLCS terminology dictionary, 2000.

 
  Version: 2.1  
  Status: complete  
maintenance need
  Definition: Work request identifying additional support tasks, which may be needed to restore products to serviceable conditions.  
  Source:

[1] PLCS Activity Model, 2000.

 
  Version: 1.1  
  Status: complete  
maintenance plan
  Definition: A plan that identifies the maintenance tasks required in order to assure the continuation of desired performance of a product-in-focus.

NOTE    The maintenance plan is a subset of support plan and hence of the support solution. It may be mandatory or for guidance.

 
  Synonyms: plan (n)  
  Source:

[1] PLCS terminology dictionary, 2000.

 
  Version: 4.1  
  Status: complete  
maintenance procedure
  Definition: A step-by-step set of actions arranged in a logical sequence to do a maintenance task.  
  Source:

[1] PLCS terminology dictionary, 2000.

 
  Version: 2.1  
  Status: complete  
maintenance schedule
  Definition: A schedule for one or more maintenance tasks.  
  Synonyms: schedule (n)  
  Source:

[1] PLCS terminology dictionary, 2000.

 
  Version: 3.1  
  Status: complete  
maintenance scheduling
  Definition: The process of transforming the maintenance plan into a maintenance schedule.  
  Source:

[1] PLCS terminology dictionary, 2000.

 
  Version: 1.1  
  Status: complete  
maintenance task
  Definition: A task performed to sustain product function.

NOTE    A maintenance task is a type of support task.

Examples:

  • Remove a replacement part
  • Investigate a symptom

 
  Synonyms: task (plcs), task (n)  
  Source:

[1] PLCS terminology dictionary, 2000.

 
  Version: 4.2  
  Status: complete  
Manage CM issues
  Definition: The recording and assessment all CM issues and the categorisation according to type and priority.

NOTE    Issues that require change action are passed to the other CCM activities. A unique identifier is issued by configuration identification. CM issues include any issue, problem or proposal related to configuration management. These can be variances (waivers, deviations, production permits etc), documentation error reports from any source but principally from SE/RM/M and F or configuration discrepancy reports e.g. arising from change monitoring or audit activity.

 
  Source: PLCS OASIS  
  Version: 1.1  
  Status: in_work  
Manage information
  Definition: Manage the information related to a PIF.

NOTE    A Configuration and Data Management (CDM) activity, the major output is Assured Product and Support Information (APSI), which encompasses the entire configuration /support data. A subset of the APSI is the Configuration Status Record (CSR). The dynamic nature of the CDM activity, and its importance within the operation of a consistent configuration management process throughout the product life cycle requires a formal approval process to attain APSI status. All configuration documentation (requirements and design documentation) and associated operational information (operating procedures, parts catalogues, etc.) that comprise the CSR must be formally managed and approved. In essence, Approve, release and record is an activity that makes configuration and support documentation available for use, subjects it to Configuration Change Management (CCM) and formally maintains the APSI.

 
  Source: PLCS OASIS  
  Version: 1.1  
  Status: in_work  
Manage information to support the product
  Definition: Capture and manage through life the information needed to support the Product-in-Focus (PIF).

NOTE    This includes configuration identification of the product and support system and configuration change management of an integrated set of Assured Product and Support Information (APSI) used to develop and provide support. It also includes development of information management rules to govern the recording, storage and publication of the APSI and of all other other information generated or used by support activities (eg maintenance history).

 
  Source: PLCS OASIS  
  Version: 1.1  
  Status: in_work  
Manage progress
  Definition: This activity represents the analysis, evaluation, and extrapolation of progress against the Authorisedm maintenance plan for the purpose of identifying tasks for release, reporting status, and the need for re-planning  
  Source:

[1] PLCS terminology dictionary, 2000.

 
  Version: 1.1  
  Status: in_business_review  
management
  Definition: Coordinated activities to direct and control an organization.

NOTE    In English, when the term "management" refers to people, i.e. a person or group of people with authority and responsibility for the conduct and control of an organization, it should not be used without some form of qualifier. For example, "management shall..." is deprecated whereas "top management shall..." is acceptable.

 
  Source:

[1] ISO 9000, Quality Management System - Fundamentals and vocabulary

 
  Version: 1.1  
  Status: in_business_review  
material
  Definition: Not used by PLCS.  
  Source:

[1] PLCS terminology dictionary, 2000.

 
  Version: 3.1  
  Status: complete  
measurement
  Definition: Set of operations having the object of determining the value of a quantity [VIM].  
  Source:

[1] ISO 9000, Quality Management System - Fundamentals and vocabulary

 
  Version: 1.1  
  Status: in_business_review  
measuring point
  Definition: The identification of the exact location on a product instance at which some form of measurement can be taken.  
  Source:
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  Version: 1.1  
  Status: in_work  
middle item
  Definition: A middle item in any physical assembly tree, or object of the dcomposition, from a specified viewpoint.

NOTE    Has both parents and children.

Synonym to subassembly and, depending of viewpoint, to an assembly.

 
  Synonyms: assembly, subassembly  
  Source:

[1] PLCS terminology dictionary, 2000.

 
  Version: 3.1  
  Status: complete  
model identifier
  Definition: An alphanumeric identifier, that is used with products as a base identifier for the serialization of the product.

NOTE    The model identifier remains unchanged when the product identifier for the assembly/product is changed unless the performance/interoperability of the assembly/product is significantly changed. Synonyms include model number, and nomenclature.

 
  Source:

[1] EIA/ANSI EIA-649-A, National consensus standard for configuration management , 2004.

 
  Version: 1.1  
  Status: complete  
Model maintenance activity
  Definition: This activity defines the maintenance plan activities, establishes the maintenance plan logic, and schedules maintenance tasks. This activity produces a draft maintenance plan for the authorisation process.  
  Source:

[1] PLCS terminology dictionary, 2000.

 
  Version: 1.1  
  Status: in_business_review  
modification (n)
  Definition: The action carried out to modify the product-in-focus.  
  Source:

[1] PLCS terminology dictionary, 2000.

 
  Version: 2.1  
  Status: complete  
modify (v)
  Definition: Make changes to a product that affect allowed configurations.  
  Source:

[1] PLCS terminology dictionary, 2000.

 
  Version: 4.1  
  Status: complete  
Monitor verification plan
  Definition: Monitoring of the implementation of the change in all affected areas to maintain consistency between each element of the PIF and its applicable configuration and supporting information.

NOTE    There are two main activities monitor update to Information which encompasses all activities to incorporate the change in the documentation affected by the change eg models, process sheets, flight manual, structural, and repairs manual and monitor the verification process to demonstrate that an activity is carried out in accordance with the applicable requirements and rules/ guidelines.

 
  Source: PLCS OASIS  
  Version: 1.1  
  Status: in_work  
MRP
  Definition: Manufacturing Resource Planning  
  Source: PLCS OASIS  
  Version:  
  Status:  

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