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Question:
(a)
(i) Using examples from the case study or otherwise, explain the following concepts:
• Encapsulation • Specialization • Polymorphism
(ii) Discuss the advantages of the above concepts with respect to software development.
(b) Using a diagram, define the phases of the Unified Development Process. Describe, briefly, the activities and deliverables of each phase.
(c) Briefly describe how the CRC (Class-Responsibility-Collaboration) index card approach may be used in Object Oriented Analysis. List two advantages and two disadvantages of using CRC in systems analysis.
What are the profits of vertical partitioning? i. These are very easy to maintain changes. ii. They decreased the change impact and error propagation.
design steps
State about the Data Dictionary This is another tool of requirement analysis that reduces complexity of DFD. A data dictionary is a catalog of all components of a system. DFD
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A friend has promised to log in at a particular time. However, he needs to be contacted as soon as he logs in. The shell script checks after every minute whether he has logged in o
List the points of a simplified design process. Ans. A design process may comprise a series of steps followed by designers. Depending on the product or else service some of t
Path & Path Production, Syntax testing, Computer Engineering Take the following flow graph and use the procedure in chapter 8 to derive an equivalent regular expression. Show all i
Write short notes on estimation models. Empirical estimation models can be used to complement decomposition techniques and present a potentially important approach in their own
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What are the benefits of prototyping? i. Prototype uses as a basis for deriving system specification. ii. Design quality can be better. iii. System can be handled efficie
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