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The success of a system relies on the approach of building it. If development approach is right then system will work successfully. Figure below portrays a System Development Life Cycle. System development life cycle (SDLC) is a standard methodology for development of Information System. It principally comprises four phases: System Analysis, System Design, System Construction & Implementation and System Support. Each phase comprises inputs, tasks and outputs. Traditional SDLC was strictly sequential. Developers first complete the previous phase then start the subsequent phase. Though now concept of Repository is introduced in SDLC and it is termed as FAST methodology where work is done across shared repository. It means that all inputs and outputs of phases should be stored in the repository. At any instance developers can backtrack to preceding phase and they may also work on two phases concurrently.
Figure: System Development Life Cycle
What are the types of data warehouses? Various types of data warehouses are illustrated below: a) Financial Data Warehouses b) Insurance Data Warehouses c) Human Resou
Q. Explain about CD-ROM and DVD-ROM? Optical disks employ Laser Disk Technology that is the latest and most promising technology for high capacity secondary storage. Advent of
Define parity generator During transmission, at sending end the message is applied to a parity generator, where the needed bit is formed.
What is event-driven control? Control resides within a dispatcher or monitors that language, subsystem or OS provider. Developers attach application process to events and dispa
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Q. Find simplified function F and implement that function using only NAND gates. 1. F(A,B,C) = (A+B) (A'+B+C') (A'+B'+C') 2. F (A,B,C,D) = A'B'C'+B'CD'+A'BCD'+AB'C' 3.
Solve the following 8-department problem using the MIP method. What is the resulting layout and flow-distance score? Note that the aspect ratio of each department should be 2.
Q. LIFO under perpetual inventory procedure? LIFO under perpetual inventory procedure observes Exhibit to see the LIFO method using perpetual inventory procedure. In this proce
Develop a regular expression for Real number and Real number with optional fraction (i) A regular expression for real number is [+ | -] (d)+. (d)+ (ii) A regular expression
Q. Illustration to demonstrate design of sequential circuits? Let us take an illustration to demonstrate above process. Suppose we want to design 2-bit binary counter employing
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