Examples of Real-time Delphi Applications

Examples of real-time Delphi applications

Examples of Real-time Delphi Applications 1

Numerous examples for real-time Delphi applications can be found. Among them, The Millennium Project conducted by Glenn, Gordon, & Florescu in 2009 provides a context for global thinking and improved understanding of global issues, opportunities, challenges, and strategies. among them the T&L2030 Series of five different studies together with PricewaterhouseCoopers: Transportation & Logistics 2030 Series. Further illustrative examples in academic journals include cases from logistics, social business, professional services, retail, and automotive.

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Real-time analyzer

A real-time analyzer (RTA) is a professional audio device that measures and displays the frequency spectrum of an audio signal; a spectrum analyzer that works in real time. An RTA can range from a small PDA-sized device to a rack-mounted hardware unit to software running on a laptop. It works by measuring and displaying sound input, often from an integrated microphone or with a signal from a PA system. Basic RTAs show three measurements per octave at 3 or 6 dB increments; sophisticated software solutions can show 24 or more measurements per octave as well as 0.1 dB resolution

Examples of Real-time Delphi Applications 2

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Real-time Dashboards

Users can build real-time dashboards with Power BI for a live command and control view. Real-time dashboards help transform live data into actionable and insightful visuals

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Real-time and high-performance

Real-time computing is sometimes misunderstood to be high-performance computing, but this is not an accurate classification. For example, a massive supercomputer executing a scientific simulation may offer impressive performance, yet it is not executing a real-time computation. Conversely, once the hardware and software for an anti-lock braking system have been designed to meet its required deadlines, no further performance gains are obligatory or even useful. Furthermore, if a network server is highly loaded with network traffic, its response time may be slower but will (in most cases) still succeed before it times out (hits its deadline). Hence, such a network server would not be considered a real-time system: temporal failures (delays, time-outs, etc.) are typically small and compartmentalized (limited in effect) but are not catastrophic failures. In a real-time system, such as the FTSE 100 Index, a slow-down beyond limits would often be considered catastrophic in its application context. The most important requirement of a real-time system is consistent output, not high throughput. Some kinds of software, such as many chess-playing programs, can fall into either category. For instance, a chess program designed to play in a tournament with a clock will need to decide on a move before a certain deadline or lose the game, and is therefore a real-time computation, but a chess program that is allowed to run indefinitely before moving is not. In both of these cases, however, high performance is desirable: the more work a tournament chess program can do in the allotted time, the better its moves will be, and the faster an unconstrained chess program runs, the sooner it will be able to move. This example also illustrates the essential difference between real-time computations and other computations: if the tournament chess program does not make a decision about its next move in its allotted time it loses the game-i.e., it fails as a real-time computation-while in the other scenario, meeting the deadline is assumed not to be necessary. High-performance is indicative of the amount of processing that is performed in a given amount of time, whereas real-time is the ability to get done with the processing to yield a useful output in the available time.

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Is safety-critical software a subset of real-time software?

A good example of a safety critical program which does not itself have to meet real time constraints is a compiler.If a compiler has code generation bugs, then even if the programmer wrote a safe program, the emitted machine code may still fail to meet some necessary guarantees. As a result, the standard practice at many development teams developing safety-critical software is to generate code with compiler optimizations turned off, and then to manually review the generated machine code. The Compcert C compiler has a machine-checked formal proof showing that it never generates incorrect assembly programs for any input program. As a result, it is possible to (a) limit code review to the C source code, and (b) permit the compiler to do optimization passes, without compromising the safety of the overall system. (See for example Towards Formally Verified Optimizing Compilation in Flight Control Software. .)Obviously, if you are trusting the compiler to generate code for flight control software, it is safety-critical. Equally obviously, a compiler is not real time software

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