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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.
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List the pre-requisites for white-box testing Pre-requisites for white-box testing are similar to black-box testing with one key difference: - During white-box testing, test
What do you understand by "Software Quality"? Quality software means, it's: - Free of bugs - Is easily maintainable - Within the budget - Meets requirements - De
What are Documentation standards? Particularly important - documents are the tangible manifestation of the software. Documentation process standards Concerned with how
State Lehman's First law A program that is used in real world environment of necessity must change or become progressively less useful in that environment.
What are the common approaches in debugging? Brute force method: The memory dumps and run-time tracks are explained and program with write statements is loaded to get clues to
Define Behavioral Modelling The state transition diagram represents the behavior of a system by depicting its states and the events that cause the system to change state.
Explain a variable? "Variables" are data items in a program whose values can change.
Hello I want to know the actual difference b/w information technology & computer science & engineering ? Thanks
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