There are _______________ overlapping stages in the lifetime of large and complex sociotechnical systems?
		A. two
B. three
C. four
D. five
Explanation: The stages are Procurement, Development and Operation.
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		A. two
B. three
C. four
D. five
Explanation: The stages are Procurement, Development and Operation.
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		A. errors
B. equivalent faults
C. failure cause
D. none of the mentioned
Explanation: Errors lead to faults
		A. Development activities
B. Negotiating with client
C. Maintenance activities
D. Re-engineering activities
Explanation: Software evolution refers to the study and management of the process of making changes to software over time. Thus it comprises rest three options.
		A. rework
B. repair
C. failure mode analysis
D. none of the mentioned
Explanation: Failure costs are those that would disappear if no defects appeared before shipg a product to customers.
		A. True
B. False
Explanation: Sociotechnical systems are non-deterministic partly because they include people and partly because changes to the hardware, software, and data in these systems are so frequent
		A. Environmental standards
B. Computers and electronics
C. Product testing
D. All of the mentioned
Explanation: National Voluntary Laboratory Accreditation Program Works with other national metrology institutes to establish criteria for mutual recognition of test results.
		A. Evolutionary development usually has two flavors; exploratory development, and throw-away prototyg
B. Very large projects are usually done using evolutionary development based approach
C. It facilitates easy project management, through the high volume of documentation it generates
D. Sometimes the construction of a throw-away prototype is not followed by a re- implementation of the software system using a more structured approach
Explanation: Evolutionary development usually has two flavors; exploratory development, and
throw-away prototyg.