Specification tree
A specification tree shows all specifications of a technical system under development in a hierarchical order.
For a spacecraft system it has the following levels:
- System (requirements) specification - generated by customer
- System (design to) specification - generated by system responsible prime contractor
- Subsystem specifications - generated by system responsible prime contractor
- Assembly[1] specifications - generated by subsystem responsible contractors
- Unit specifications - generated by subsystem (or assembly) responsible contractors.
- Assembly[1] specifications - generated by subsystem responsible contractors
- Subsystem specifications - generated by system responsible prime contractor
- System (design to) specification - generated by system responsible prime contractor
References
- An assembly level is defined as intermediate level when the subsystem contractor prefers to contract a group of units with complex interfaces to another contractor (for instance the operating system and subsystem application software can be an assembly of the data management subsystem).
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.