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What Are Tools Used in Process Modeling? Process modeling, sometimes called structured analysis and design, is an analysis and design technique that describes processes that transform inputs into outputs. Tools used for process modeling include the following. An entity-relationship diagram (ERD) graphically shows the connections among entities in a system. An entity is an object in the system that has data. A data flow diagram (DFD) graphically shows the flow of data in a system. Key elements of a DFD are a data flow, which shows the input or output of data or information; a process, which transforms an input data flow into an output data flow; a data store, which is a holding place for data and information; and a source, which identifies an entity outside the scope of the system. The project dictionary, sometimes called the repository, contains all the documentation and deliverables of a project. Techniques used to enter items in the project dictionary include structured English, a decision table and/or a decision tree, and a data dictionary.
A balanced-cross-flow compact heat exchanger is required for an air heating system that processes 0.5 kg/s air. The inlet temperature for the hot water is 295 K, and the cold air enters at 270 K to be heated to 287 K. The inlet pressure for the hot w..
Premium-quality racing bikes (such as Tour De France models) have used one-piece carbon-fiber composite frames (i.e. no joints at all!). What is the benefit of such a design?
the aerodynamic resistance to motion of a car is nearly proportional to the square of its velocity. additional friction
A single-stage ideal regenerative steam cycle has a boiler pressure and temperature of 5000 kPa and 500 C, and a condensing pressure of 10 kPa. The extraction pressure is 500 kPa.
Consider the cylindrical weir of diameter 3 m and lenght 6m.if fluid on the left has specific gravity of 1.6,and on the right has a specific gravity of 0.8,find the magnitude and direction of the resultant force
estimate the weight savings if a typical automobile engine 100 kg is made of aluminum instead of cast iron. assume the
Describe possible processes for preparing sintered compacts with the following microstructures
a body with the shape of a rectangular parallelepiped moves without slipping on two cylindrical rollers. the mass os
A timber beam is subjected to a maximum bending moment of 2600 N⋅m.- Calculate the maximum bending stress.- Calculate the bending stress 25 mm below the top surface.
a full journal bearing360degree has a diameter of 10mm a length of 5 mm and supports load of 20 n. the sormmerfield
Water is pumped from a lower reservoir to a higher reservoir by a pump that provides 23kW of shaft power. The free surface of the upper reservoir is 46m higher than that of the lower reservoir. If the flow rater of water is measured to be 0.03m^3/s d..
You can produce a parking token by two alternative methods. First, cut a 10 mm diameter billet to a length of 10 mm, and then closed-die forge it to the final size and shape (25 mm diameter). Second, you could start with a sheet of material, and stam..
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