Logistics Support Analysis (LSA)

A structured method of analyzing items of equipment as they are being developed, to identify any features of design that could result in unnecessary expense in-service.

NOTE    Once identified, these areas can be the subject of trade-offs to amend the design in order to reduce these cost drivers.

Abbreviation: LSA

The term "logistic support analysis" has the following synonyms: LSA,

Maintenance Task

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

The term "maintenance task" has the following synonyms: task (plcs), task (n),

Product Configuration Information (PCI)

Information about a product in support of its life cycle phases.

NOTE    Product configuration information includes product definition information and supplementary types of information (eg operating procedures, maintenance procedures, disposal methods) necessary to support all phases of the products life cycle. It does not consist of project or administrative types of information (eg cost, schedule, and planning)

Product In Focus (PIF)

The set of operational products and related items sharing a common product design and support solution.

NOTE    The PIF may include:

• Many versions of the product design

• Many operational products, used by different users in different ways

• Any part of the operational product needing support

-Any support item or infrastructure element that are addressed by a given Support Solution

Abbreviation: PIF.

The term "product-in-focus" has the following synonyms: PIF,

Progression Code

Any code that is used to track the evolution or modification of something. For example the versioning of a task.

Support Driver

Identification and description of a justified need for support activity.

NOTE    Consists of predicted product failure or degradation, safety drivers (legal and others), environmental drivers or operation and readiness drivers.

Also includes requirements for tasks to collect the information needed to assess support performance.

Support Solution

The information required to support a set of products within a deployment environment.

NOTE    The support solution may include:

• a listing of relevant support drivers

• a support plan, that identifies necessary tasks to respond to these support drivers, and specifies the conditions under which each task falls due

• justification for the above

• task procedures for necessary tasks

• identification and quantification of resources needed to achieve necessary tasks, including types of person with skill level

• resource models for necessary tasks

• identification of the deployment environment and requirements for which the support solution was designed.

Support Task

A task that form part of the work required to sustain a product in one or more deployment environments.

NOTE    A type of task.

Examples:

• Transport a replacement part.

• Repair an operational product

Task

The designed method for performing a support action. A task can be used as the method for performing one or many activities.

NOTE    Task in PLCS is the designed action, whereas activities are the actual actions.

The term "task (plcs)" has the following synonyms: task (n),

Task Procedure

A step-by-step instructions for undertaking necessary tasks in a form suitable for use by support providers.

NOTE    The same task may be supported by several task procedures, each tailored to the needs of a class of users (eg to accommodate different skill levels).

Task Resources

Identification and quantification of the resources that are needed to perform an individual task.

NOTE    Includes definition of required skills and experience of required support personnel.

Task Set

Collection of valid tasks.

Task Specification

Definition of the method for performing a potential support task.

NOTE    Note 1: A task specification may include a task objective, a task method (including sequence within the task), task predecessors/successors, pre-/post conditions, required skills/skill levels, required resources, duration and level of effort, applicable constraints, the relationship to the support requirements, etc.

Note 2: The level of detail within a task specification is a business decision.

Task Step

The smallest unit of work identified by a task procedure or a task specification.

NOTE    A task step has a definite start and a definite finish.

The term "task step" has the following synonyms: task specification, task procedure,

Task Trigger

The conditions that require a task to be done, in the context of its assignment to a specific product element.

NOTE    Note 1: The type of trigger will vary with the type of task:

• Corrective tasks, including diagnostic tasks, are triggered by events (the occurrence of damage, the detection of a failure or a symptom.)

• Preventative tasks, including pre-programmed inspections, are triggered by time, life, usage or other conditions (hours run, number of landings, interval, frequency, if frost is expected).

-Operational and servicing tasks are triggered by actual or intended product use (eg tow out of hangar, re-fuel, de-fuel, configure-for-role) .

Note 2: Triggers may include relative conditions eg 4 months after last inspection.

Note 3: If a usage scenario is adequately defined, and if tasks are linked to resources, the task triggers may be used, in conjunction with product reliability data, to forecast resource requirements and support system performance over a given period.