MAIT is a highly complex multi-modal and technology
integrating transportation system (TS).
A proper structure, an appropriate distribution of data and functions,
common operating principles, standardized interfaces and quality
measures are necessary to ensure a reliable and safe functioning.
It is further desirable to divide the entire system in smaller parts
which can be developed and tested separately.
Therefore, this document has the following purpose:
- definition of global specifications: These are meant to
be the starting point of a top down system design that is logically
derived from the above mentioned main objectives.
- generation of local specifications from global
specifications (see Fig 1): Local specifications
allow the development of MAIT compliant system hard and software.
Local specifications allow also the independent development and test
of system hard and software.
- knowledge integration: since MAIT is an entirely new
concept, it has little technical or scientific bases in any
traditional faculties. As MAIT is an interdisciplinary project there
is the need to integrate the knowledge of specialists with various
backgrounds.
The top-down system design procedure goes as follows (see also
Fig. 1):
- definition of general transport system specifications from objectives.
- derivation of system architecture from general specifications.
- identification and definition of system structure and processes.
- Quantitative definition of properties, interfaces and quality
criteria (local specifications).
Figure 1:
Top down system design approach.
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