Operational Feedback Business Process

AP239 Application Activity Model coverage

The AP239 Application Activity Model (AAM) is an IDEF0 representation of the business activities that assist understanding of the scope and information requirements defined in AP239. The model is presented as a set of figures and a set of definitions of the activities and their associated information flows.

This DEX will support a subset of the activities and information flows. These are highlighted in yellow in the subsequent figures.

Activities and information flows that are out of scope of AP239 are marked with an asterisk.

AP239 Application Activity model definitions

The following terms are used:

Collect data & provide feedback

action to collect and capture into the information technology infrastructure the data generated by support activities or by use of the product

NOTE   

Feedback includes:

• support task records, including product data collected by the task;
• product state and usage records;
• resource element state and usage records;
• product configuration information;
• any issues arising from work.

APSI and related information

set of assured and related information used to develop and deliver support for a product in focus, including feedback from using and supporting the product over its life cycle

NOTE    Related information includes records of the history of the usage or support of realized products, design and support analysis results and reasons why decisions were taken. Such information includes design and failure analysis records, logistic support analyses, running hours, environment descriptions, operating profiles; test results, records of maintenance activities, resources used, and faults found plus any other content deemed relevant to life cycle support.

product status

notification of the current state of a product receiving support, as confirmed by the authority controlling the work

support feedback

observation on the condition or usage of a product receiving support and on the execution of support activities

NOTE   

Support feedback is generated when tasks are performed on a product needing support. It includes information on:

• the operation, usage and location of the product or support element receiving support;
• the current configuration of the product or support element;
• the condition of the product or support element receiving support, before, during or after the support activity, recorded as properties, states or observations;
• the progress and status of work;
• the resources used to perform work;
• issues arising from work done, including proposals for change to the product or support solution.

work status

information on the progress of activities in relation to a support schedule

NOTE    This information on status is transient and will change as the work progresses.

DEX Business application

This DEX enables the transmission of information on the condition and usage of a supported product gathered during or after a period of operation. This feedback provides the foundation for building a history of product usage and condition over time, and an input for the evaluation of triggers for maintenance tasks (see DEX D004: work_package_definition). Feedback relating to the execution of maintenance tasks is covered by DEX D009: work_package_report.

Examples of information about the usage of a supported product:

• flying hours on an aircraft;
• mileage travelled by an automobile;
• number of starts for an electrical generator;
• volume of fluid pumped through a pipeline or process plant;
• operational cycles for a gas turbine engine;
• occurrences of operation outside preset limits i.e. over-speed, or over-stress;
• feedback from system monitoring;
• fatigue index;
• location of the part or product.
• the environmental state in which a specific usage occurred.

Examples of information about the condition of a supported product:

• occurrence of fault no 7 on electrical panel 239
• serviceability status;
• oil pressure;
• operating temperature;
• vibration levels;
• fluid consumption;
• fluid levels;
• flow rates;
• the integrity status of an electrical system.

This DEX can be used to report on the current configuration of the supported product and to report changes to that configuration.

NOTE    D009: work_package_report will be used to exchange information regarding the work that was carried out.