BS/EN 9223-104-2018 pdf download.Programme Management Configuration Management Part 104 : Configuration Control.
The allocation of an item to an authority, and reciprocally, is deduced from an analysis based on the conligu ration data and items, as potentially impacted by a control decision. This allocation rule shall be clarified in the configuration management plan.
5.3 Technical changes, deviations permits and concessions shared provisions
In the following clauses, provisions common to technical changes, deviation permits and concessions and provisions specific to each category will be distinguished.
Each technical change, deviation permit and concession experiences its own life cycle and is subject to a decision-making process.
Management process:
— indicates involved entities and actors (who does what?);
— describes process flow (how?) and the decisions to be made (what?);
— is tailored as the programme progresses.
Two pieces of information are particularly important in the technical changes, deviation permits and concessions management procedure:
— the request which generally replaces the statement of need (see 5);
— the file which, from the request, is step by step supplemented with any necessary elements (see 5.Z).
A simplified example of the logical progression of technical change management Is presented in Annex C.
NOTE In case of acknowledged emergency, and subject to previous collection of any necessary pieces of advice, this process may be conducted according to a specific procedure generally called emergency procedure.
5.4 Technical changes process
Any technical change shall meet an identified specific need (see 5).
Any technical change exhibits the following features:
— once approved, the technical change is intended to stand unmodified (any cancellation or modification would require another technical change to be approved);
— the technical change is intended to apply to the whole set of items to be produced after the decision, subject to related application provisions;
— retrofitting previously produced items is possible;
Once accepted, a deviation permit shall be incorporated in the applicable configuration. As such, a deviation permit has main features in common with a technical change.
Typical reasons for processing a deviation permit may be:
— anticipated implementation of a technical change, that is under consideranon but not yet qualitied;
— a change to the applicable requirements, that is under consideration but not yet implemented in the technical specification;
— a quite specific feature, intended to be applied on a strictly limited batch of articles (colour, configuration for tests, repair solution, material characteristics that exceed specifications, etc.);
— provisional implementation of a technical change, for qualification and validation purpose;
— temporary acceptance of a nonconformity to be phased out by a future necessary technical change, not yet approved (or even designed);
— emergency and temporary implementation of a device mandatory for operation, to be replaced by a future permanent technical change;
— modification of the implementation rank compared with that specified in the approved technical change file;
— deliberate omission of an element of the updated approved configuration.
For most deviation permits, there Is no need to distinguish the request from its file. Indeed, the request shall specify all the justifications for the need usefulness and satisfaction.
Each time the reason for a deviation permit is to anticipate a technical change, the final acceptance decision shall specify the effects on each involved specimens subject to deviation, and on its applicable configuration. The marking of products or products location can be associated with deviations in order to prevent any delivery before the final decision.
5.6 Concessions handling process
A concession is a conformity gap that affects a specimen with respect to its applicable configuration.
On principle, a concession shall be an exception and affect only a batch both limited and defined. Such concessions are not limited to supplier’s deliveries to the customer, but include any effects of events occurring during the product utilization.
A number of events may result In concessions phasing out, e. g. scrap, rework or subsequent engineering change implementation. The process for managing concessions shall specify the provisions that apply to concession phasing out.BS/EN 9223-104-2018 pdf download.