Open Concurrent Design Server
Encyclopedia
The Open Concurrent Design Server (OCDS) is an initiative of the European Space Agency
European Space Agency
The European Space Agency , established in 1975, is an intergovernmental organisation dedicated to the exploration of space, currently with 18 member states...

, ESA. The OCDS provides the building blocks of a Concurrent, Collaborative and Distributed Engineering for the European Space Industry, using Open Standards Information Models and Reference Libraries.

The OCDS is the vehicle to distribute ESA’s Concurrent Design Facility
Concurrent Design Facility
The Concurrent Design Facility is the European Space Agency main assessment center for future space missions and industrial review. Located at ESTEC, ESA's technical center in Noordwijk in The Netherlands, it has been operational since early 2000....

 Concurrent Design methodology and a set of tools to the Space industry
Space industry
Space industry refers to economic activities related to manufacturing components that go into Earth's orbit or beyond, delivering them to those regions, and related services. Owing to the prominence of the satellite-related activities, some sources use the term satellite industry interchangeably...

, organisations and academia. At the same time it distributes an open data exchange
Data exchange
Data exchange is the process of taking data structured under a source schema and actually transforming it into data structured under a target schema, so that the target data is an accurate representation of the source data. Data exchange is similar to the related concept of data integration except...

 standard for early phase space system
Space system
A space system, in most cases, is a hardcode or softcode system for a game server, in some cases a patch that may be added to the game's hardcode. A space system such as HSpace, for Hemlock Space, used on a PennMUSH game server, generally simulates a three dimensional space, in a text environment....

 engineering
Engineering
Engineering is the discipline, art, skill and profession of acquiring and applying scientific, mathematical, economic, social, and practical knowledge, in order to design and build structures, machines, devices, systems, materials and processes that safely realize improvements to the lives of...

 and design activities described in the ECSS-E-TM-10-25
European Cooperation for Space Standardization
The European Cooperation for Space Standardization , established in 1993, is an organization which works to improve standardization within the European space sector. The ECSS frequently publishes standards, to which contractors working for ESA must adhere to.-References:*- External links :* * at...

.

The OCDS helps the European Space Community to:
  • Increase Data Management
    Data management
    Data management comprises all the disciplines related to managing data as a valuable resource.- Overview :The official definition provided by DAMA International, the professional organization for those in the data management profession, is: "Data Resource Management is the development and execution...

     Capabilities, including Life Cycle Data Management
  • Support the information longevity objective
  • Achieve a hardware
    Hardware
    Hardware is a general term for equipment such as keys, locks, hinges, latches, handles, wire, chains, plumbing supplies, tools, utensils, cutlery and machine parts. Household hardware is typically sold in hardware stores....

     and software independent solution
  • Optimise the design process
  • Consolidate Design Models in a repository based on open standard
    Open standard
    An open standard is a standard that is publicly available and has various rights to use associated with it, and may also have various properties of how it was designed . There is no single definition and interpretations vary with usage....

    s
  • Improve communication to Contractors and partners, using Open and publicly available standards (e.g. ISO, ECSS, ….)
  • Streamline the communications to other ESA corporate applications using model based integration
  • Connect data to product assurance (PA/QA) activities.

Industrial Consortium

The OCDS is being developed under ESA contract by a Consortium
Consortium
A consortium is an association of two or more individuals, companies, organizations or governments with the objective of participating in a common activity or pooling their resources for achieving a common goal....

led by DNV with the support of EPMT, Daysha, and Critical as
subcontractors.

ECSS-E-TM-10-25

ECSS-E-TM-10-25 "System Engineering - Engineering Design Model Data Exchange (CDF)" is a Technical Memorandum under the E-10 "System engineering" branch in the ECSS series of standards, handbooks and technical memoranda.

The Scope statement of ECSS-E-TM-10-25A defines its purpose:
This Technical Memorandum facilitates and promotes common data definitions and exchange among partner Agencies, European space industry and institutes, which are interested to collaborate on concurrent design, sharing analysis and design outputs and related reviews. This comprises a system decomposition up to equipment level and related standard lists of parameters and disciplines. Further it provides the starting point of the space system life cycle defining the parameter sets required to cover all project phases, although the present Technical Memorandum only addresses Phases 0 and A.

Furthermore:

This Technical Memorandum is intended to evolve into an ECSS Standard in the near future. For the time being, it is not yet possible to establish a standard that has the maturity and industrial validation required for application in new or running space projects. In conjunction with related development and validation activities, this Technical Memorandum should be regarded as a mechanism for reaching consensus prior to building the standard itself.
The TM provides the basis for:

Creating interoperable Concurrent Design (CD) centres across the European space community. Allowing semantically consistent data exchange between CD centres. Enabling and supporting joint real-time collaborative design activities involving multiple CD centres. The initial objective of the TM is thus to act as a reference for the creation of new CD centres or upgrade of existing ones. Some of the already existing CD centres have based their process and data model on the current ESA CDF IDM (v.6.11 or v.6.14), which has been adopted by many space organizations. The ESA CDF IDM was also used as a basis for OCDS. Full agreement on the contents of the TM is required in order to obtain interoperable CD centres. This implies the following.
  • The naming and meaning of concepts and terms must be standardized to achieve semantic interoperability.
  • The next objective is to allow automated data exchange between CD centres, which in addition to semantics also requires syntactic interoperability, i.e. agreement on common syntax, or use of automated translators.
  • The ultimate objective is to allow real time collaboration, which in addition to standardized semantics and syntax, also requires organizational interoperability of work processes and project models.


ECSS-E-TM-10-25A comprises the following parts:
  • Clause 1: Scope
  • Clause 2: Normative references
  • Clause 3: Terms, definitions and abbreviated terms
  • Clause 4: Background and concepts
    • Includes the description of the Space Engineering Information Model (SEIM), a conceptual data model for all information needed to conduct concurrent design sessions
    • Includes the description of the Space Engineering Reference Data Library (SERDL), an agreed collection of concurrent design organization roles, process concepts, disciplines and parameter types. These are predefined instances of SEIM concepts.
  • Clause 5: A list of requirements that two or more parties that want to exchange data for a concurrent design activity shall comply with.
  • Annex A: The formal definition of the Space Engineering Information Model (SEIM).
  • Annex B: The formal definition of the Space Engineering Reference Data Library (SERDL).
  • Annex C: The formal definition of the Web Services Interface.
  • Annex D: An informative description of margins and reference frames.

External links

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