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Data Flow Diagrams (DFD)
It's a graphical representation of flow of data through a system. It pictures a system like a network of functional processes. The foundation of DFD is a data flow graph that pictorially represents transformation on data as demonstrated in Figure.
Define Process Specification. Process Specification is used to explain all flow model processes that appear at the final level of refinement. Check & Convert pressure Ch
encoded micro instruction vs unecoded micro instruction
QUESTION - Time Synchronization (a) Why is computer clock synchronization of paramount importance? Give 2 business scenarios whereby time accuracy is critical? (b) Computers
write a assignment of online movie database system
Explain the waterfall model. Explain why it is more advantageous than adhoc methods. Ans Waterfall Model: 1.The waterfall model is a chronological software development p
What are the elements of Computer based Systems? Software: Data structures, Computer programs, & related document Hardware: Electronic devices, inter connectivity devices, E
Draw an E-R diagram for the following situation: an account is a relationtion between cutosmer and bank. A customer had a name.
Explain fan out and fan in with example.
What does data dictionary contains? Name: The primary name of the data. Alias: other names used Where-used/How-used: A record of processes that use the data or control it
ZeroJet, a new low cost airline, wants a brand new web-based system to allow people to book seats for flights on-line. They want an automated check in system which has no staff.
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