Search results
Results from the WOW.Com Content Network
About 72 percent of the railway's freight revenue is paid electronically. [5] Passenger Reservation System (PRS): A nationwide online passenger reservation and ticketing system, developed and maintained by CRIS, was developed in C and Fortran on a Digital OpenVMS operating system using RTR (Reliable Transaction Router) as middleware.
The MARS-1 train ticket reservation system was designed and planned in the 1950s by the Japanese National Railways' R&D Institute, now the Railway Technical Research Institute, with the system eventually being produced by Hitachi in 1958. [6] It was the world's first seat reservation system for trains. [7]
An entity–relationship model (or ER model) describes interrelated things of interest in a specific domain of knowledge. A basic ER model is composed of entity types (which classify the things of interest) and specifies relationships that can exist between entities (instances of those entity types).
Most ticket printers are designed for blue tickets equipped with a magnetic stripe (although the magnetic stripe was formerly used across the national high-speed railway network in automatic faregates, it is now only used on the Jinshan Railway in Shanghai), while some are designed for pink paper-only tickets, with the latter type becoming ...
The products, or "artifacts", of a domain analysis are sometimes object-oriented models (e.g. represented with the Unified Modeling Language (UML)) or data models represented with entity-relationship diagrams (ERD). Software developers can use these models as a basis for the implementation of software architectures and applications.
Once a flight has departed, the reservation system is updated with a list of the checked-in passengers (e.g. passengers who had a reservation but did not check in (no shows) and passengers who checked in, but did not have a reservation (go shows)). Finally, data needed for revenue accounting and reporting is handed over to administrative systems.
The enhanced entity–relationship (EER) model (or extended entity–relationship model) in computer science is a high-level or conceptual data model incorporating extensions to the original entity–relationship (ER) model, used in the design of databases.
Communications-based train control (CBTC) is a railway signaling system that uses telecommunications between the train and track equipment for traffic management and infrastructure control. CBTC allows a train's position to be known more accurately than with traditional signaling systems. This can make railway traffic management safer and more ...