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Problem:
(a) Draw an Entity Relationship Diagram for the given case study. Show entities and relationships on the diagram (attributes should not be shown). Cardinality and optionality of relationships should be shown.
(b) The attribute ‘Mileage at last servicing' of the entity E2 Vehicle is not captured in the given system of events. Make the necessary amendment to the event model to correct this anomaly.
(c) The field ‘Total Value of Spare parts used in servicing' was introduced to track expenditure incurred in servicing of vehicles. Is this field a redundancy? Is it justified?
(d) It was also noted that in order to record all costs incurred in the maintenance of a vehicle, it would be necessary to record cost of labour and also the cost of repairs outside normal scheduled servicing tasks. Modify the given event model and the data model to meet this requirement.
A manifestation of an error in software. A fault, if encountered, might cause a failure.
Define software reliability. What is the difference between hardware & software reliability? Ans: Software reliability is the possibility that software will provide failure-f
What are the advantages of evolutionary prototyping? i. Fast delivery of the working system. ii. User is included while developing the system. iii. More useful system can
Which is not the purpose of full annealing Produces hardest material.
When to Re-Engineer? When the system alter are mostly confined to part of the system then re-engineer that part. When hardware or software support becomes obsolete.
FAN IN is simply a count of the number of other Components that can call, or pass control, to Component A.
Q. Why Waterfall model is advantageous than Adhoc Methods? Why Waterfall model is advantageous than Adhoc Methods AC16 Software Engineering Ad-hoc Process Models -Process
You are to create a decision table to help you decide what to do for the day. If it is a weekday and it is not a holiday, then you go to work. However, if it is a weekday and it
Distinguish between verification and validation. Verification is the set of activities that ensure that software properly implements a specific function. Validation is a differ
"User documentation" is a document that explains the way a software product or system should be used to get the desired results.
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