BS/EN 16601-00-2019 pdf download.Space system-EN 16600 series – Description , implementation and general requirements.
7.1 Introduction
The project’s requirements within the PRD are composed by two sets:
• requirements covered by ESS disciplines, subject to tailoring, and
• other requirements specific to the project (not considered in this Clause, e.g. mission specific requirements)
The Standards and requirements to be made applicable at each level of the customer—supplier chain are influenced by the type and phase of the project involved, and by the type of business agreement to be used for managing the project.
The ESS System provides a comprehensive set of coherent standards covering the requirements for the procurement of a generic space product. This system can be adapted to a wide range of project types. The process of adapting the requirements to the project specificities is called tailoring.
It is important to complete the preparatory activities (see clause 72) before addressing the range, degree and phasing of applicability of the total set of European Space Standards to a particular project.
Figure 7-1 and the clauses 7.2 and 7.3 describe a recommended 7-step process for the preparation and application of tailoring to establish the applicability of European Space Standards and their requirements to a project and to apply tailoring as necessary.
7.2 Preparatory activities
7.2.1 Identification of project characteristics – Step I
Overall project characteristics are derived taking into account experience gained and lessons learned from comparable projects, and are used for establishing the project context, scope, scale, orientation and other elements key to the successful achievement of the project objectives. They are specified in both programmatic and technical terms. Programmatic characteristics cover overall risk policy, including risk sharing, as well as political, financial, schedule, economic and contractual aspects. Technical characteristics cover mission
7.2.2 Analysis of project characteristics and identification of risks – Step 2
After identifying its characteristics, the project is analysed to identify significant cost, schedule, technical drivers, as well as critical issues and specific constraints. These are used to identify and evaluate inherent and induced risks.
Main strategic, organisational, economical or technical characteristics considered for a project are as follows:
• Objective of the mission (e.g. scientific, commercial. institutional);
• Product type (e.g. space segment, space transportation segment, ground segment and operations, equipment, instrument);
• Mission characteristics (e.g. type of orbit, expected life duration. availability);
• Constraints with the environment (e.g. external interfaces, external regulations. procurement constraints) the project belongs to;
• Expected cost to completion;
• Schedule drivers;
• Level of commitment (e.g. partnership, supplier) or type of business agr*’ment fr.g. fixed price, cost-reimbursement);
• Maturity of design or technology (e.g. recurrent development, readiness level);
• Technical product complexity;
• Organisational or contractual complexity;
• Supplier maturity.
NOTE This list is not exhaustive and can be completed according to project needs. Some elements of this list are imposed to the project, whereas the others are subject to choice within the project itself.
The resulting project risk factors are documented and the causes and consequences of the identified risks are determined. This is the first step in the risk management process, which is continued to monitor and manage risk mitigation actions throughout the life of the project.
7.3.1 Selection of applicable European Space Standards – Step 3
Using the results of the preparatory activities as the primary input, the complete set of F.uropcan Space Standards is evaluated for relevance to the overall protect needs. Those standards found to be relevant arc identified as applicable standards for the implementation of the project. In making this determination, it is important to recognise that at this level, due to the integrated structure of the ESS System, identifying a standard as directly applicable also makes other standards called by it explidtly applicable.
The subset of applicable standards selected through the above process can vary, depending mainly on the type, size and complexity of the project being addressed. The project phase, or phases, for which the applicability of European Space Standards and their requirements is being selected, is another important factor to be considered. The early phases in a project lifecvcle most often do not need a high percentage of the requirements available in European Space Standards to be made applicable to achieve their objective. However, in order to establish an overall view of the phasing in of requirements, it is good practice that this initial selection of applicable standards covers all project phases up to and including the development phase, which is typically the most demanding phase of a project. With this initial selection established, appropriate and coherent subsets of the standards to be made applicable during the course of project implementation can then be selected to match the specific needs of the earlier project phases.
7.3.2 Selection of requirements from applicable standards – Step 4
Having established the list of applicable European Space Standards for a project, the extent to which the requirements contained within these standards are made applicable is assessed against cost, schedule, and technical drivers, as well as against the identified risks and their mitigation strategies.
Each requirement within the applicable standards is assessed and classified as:
(Y) Applicable without change,
(M) Applicable with modification, or
(N) Not applicable (deleted).BS/EN 16601-00-2019 pdf download.