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Explain about the E-R Diagram
Entity-relationship (E-R) diagram is detailed logical representation of data for an organisation. It is data oriented model of a system while DFD is a process oriented model. ER diagram represent data at rest whereas DFD tracks the motion of data.
ERD doesn't provide any information regarding functionality of data. It has 3 main components - data entities, their relationships and their associated attributes.
What is Software metric? Any type of measurement which relate to a software system, process or related documentation Lines of code in a program, the Fog index, number of
What is Peer Reviews? Ans) A methodical examination of software work products by the producer's peers to recognize defects and areas where changes are required.
INFORMATION STORAGE AND RETRIEVAL SOFTWARE: IBM (International Business Machines Corporation) was one of the earliest to invest money to develop software packages intended fo
Explain the term- System Maintenance update hardware as new items come on market or company changes in any way which requires new devices to be updated/added Update sof
Explain Respiratory quotient? Ans) Respiratory quotient is the ratio among the carbon-dioxide used in photosynthesis to the quantity of oxygen liberated in respiration.
What does Level0 DFD represent? Level0 DFD is known as 'fundamental system model' or 'context model'. In the context model the entire software system is shown by a single bubb
State the System Engineering Hierarchy? The world view is composed of a set of domains (Di), which can each be a system, or system of systems. WV = {D1,D2,D3,...........,Dn}
Q. Assuming the Putnam model and given S = 100,000 C = 5000 and D 0 = 15 calculate the development time t d. Ans: In Putnam model (S/C ) 3 = D 0 t d 7 lhs = 20
Problem solving is a critical skill for success in business—in fact it’s often what you are hired and paid to do. This article explains the five problem solving steps and provides
Define about the Software Development Life Cycle The different steps (known as phases) that are adopted in development of this process are collectively called as Software Devel
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