22. What are the four principal dependability properties?
Reliability, availability, safety and security
23. Explain the difference between a system fault and a system failure.
A fault is an internal system condition that can lead to an erroneous system state. A failure is an externally observed deviation from expected system behaviour.
24. List the main benefits of software reuse.
Increased dependability, reduced process risk, effective use of specialists, Standards compliance, accelerated development.
25. What are the main benefits of COTS reuse?
More rapid deployment of a reliable system is possible
It is easier to judge if an application is likely to be suitable because its functionality is visible.
Some development risks are avoided by reusing complete products. Business can focus on their core activity without devoting resources to software development.
As operating platforms evolve, the COTS supplier is responsible for updating the application.
26. What is a workflow?
A sequence of activities, ordered in time, that make up a coherent business processes with each activity carrying out some part of the work of that process.
27. List 4 fundamental project management activities.
Project planning, Reporting, Risk management, People management, Proposal writing
28. Briefly describe two types of cost estimation techniques?
Experience-based techniques where the estimate is based on a manager s experience of past projects and the application domain.
软件工程复习题-问答题
Algorithmic cost modeling where a formulaic approach is used to estimate the development effort required, based on attributes of the software and the development team.
29. What are the stages in the software inspection process?
Planning, Overview, Individual preparation, Inspection meeting, Rework, Follow-up.
30. What is a baseline?
A controlled system (collection of component versions) where the component versions making up the system cannot be changed.
31. What may be included in a system release?
The executable code of a system, Configuration files,
Data files,
An installation program
Electronic and paper documentation, packaging and publicity.
32. What is the difference between a system version and a system release?
A system version is an instance of a system that differs, in some ways, from other instances. A system release is a version that is released to customers.
33.What are the main factors that affect software product quality?
Development technology, People quality,Cost, time and schedule, Process quality.
34. What are the identified levels in the CMMI staged model?
Initial, Managed, Defined, Quantitatively managed, Optimizing.
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