ASD-STAN/D 1/WG 11 - System definition and realization

The aim of a MIF and the associated justifications is to ensure that manufacturing and/or inspection operations are realized in a compliant and reproducible manner.
The purpose of this document is to provide a guide to the elaboration of the MIF and the associated justifications by:
—   positioning them within the framework:
o   of a programme and its objectives, on the one hand;
o   of the realization of a product, on the other;
—   describing, until production of the product ceases:
o   the principles and conditions applying to the elaboration and then the validation of the MIF within the framework of the industrialization process;
o   the principles and conditions applying to the elaboration and then the validation of the MIJF associated with the MIF, within the framework of the industrialization process;
o   the principles and change and control conditions applying to the MIF and the MIJF.
This document can be used for all processes or sets of processes implemented on a tangible product, which may incorporate software associated with the product. It does not apply to purely software product, commercial-off-the-shelf product (catalogue part) or service (intangible product).
This document applies more particularly to serial production. Nevertheless, the principles and conditions set forth in this document may be applied, making any necessary adaptations, to unit production or to the realization of products to meet development needs (prototypes, demonstrators, etc.).
This document covers the MIF and the MIJF of a product, including the activities related to procurement and the associated industrial means in particular.

This document sets forth the general rules applying to the justification of the definition of a product (tangible or intangible) and specifies the content of the Definition Justification Plan (DJP) and the Definition Justification Dossier (DJD).
It is applicable to all products designed and developed to fulfil the requirements of a customer expressed in a (Need) Technical Specification. Industrials are advised to apply the following principles to their own needs for justification in their internal customer/supplier relations.
Clause 5 presents the concepts and the documents associated with the justification of the definition and qualification processes.
Clause 6 summarizes the role and the contractual nature of the qualification of the definition.
Clause 7 gives details of the qualification of the definition process, while Clause 8 positions this process in the programme development logic.
The document also describes the differences between the justification and the qualification of the definition and other notions, such as verification, validation or acceptance (Clause 9).
Clause 10 is a guide to the establishment and maintenance of the documents associated with the justification of the definition and qualification processes. Information related to the certification process, even if it is out of the scope of the present document, is also presented in Clause 10, because this process has certain similarities with the justification of the definition and qualification process.
This document belongs to the documents supporting the EN 9200 relating to Project Management Specification.

This document provides an inventory of best practices, shared by actors from the aerospace and defence sector, concerning the verification and validation (V&V) of numerical simulations and models, in order to ensure the credibility of the outputs obtained in a logic of faster development of decision-making support, of reducing the number of physical tests, of shortening development times, of facilitating numerical qualification and certification, etc. These are all the major challenges concerning simulation.
The approach applies to models based on physical equations.
EXAMPLE   Mechanics, acoustics, electrical, electromagnetism, thermal physics for electronics, fluid dynamics, multibody dynamics, multiphysics, optical, signal integrity and power integrity.
The objective is to determine recommendations depending on the challenges of the simulation, in order to adapt the procedures to be applied to ensure the credibility of the simulation. The items being considered are:
-   criticality of the product and the simulation;
-   complexity of the phenomenon or the product;
-   capability, fidelity and maturity of the model;
-   product lifecycle;
-   skills;
-   verification and validation approach, with uncertainties quantification;
-   etc.
This document is organized as follows:
-   terms and definitions;
-   general principles and concepts of simulation V&V:
o   the document’s objectives and added value;
o   state of the art;
o   different uses of simulation depending on the maturity (approximation level) of the model and product lifecycle, linked to the expected fidelity of the model and the simulation outputs;
o   presentation of the different types of models and impacts on criteria and quantities of interest, as well as on requirements;
-   recommended V&V process and activities (linked to the degree of maturity);
-   an example of a simulation plan template;
-   examples for a clearer understanding.
The aim of this document is to complete and reference the information available in the literature. This document takes a generic approach so that it is applicable by most organizations and for different types and domains of simulation.
This document addresses simulation specialists, simulation team managers and other stakeholders involved in the simulation process or decision-making support.
This document provides recommendations for each criticality level, linked also to the level of confidence in the simulation, at each stage of the simulation process.
Modelling and simulation have long been part of product qualification and certification, and the recommendations laid down in this document do not aim to replace the many qualification, certification and analysis processes already proven and established. The practices recommended in this document were specifically developed in response to potential future applications of modelling and simulation which could, in some cases, give it a more prominent role in qualification and certification, thereby reducing programme costs and development times.