Software Engineering Ch:1-5

(Ch.1) Increasing system complexity - Answer- As new software engineering techniques help us to build larger, more complex systems, the demands change. Systems have to be built and delivered more quickly; larger, even more complex systems are required; systems have to have new capabilities that were previously thought to be impossible. (Ch.1) Failure to use software engineering methods - Answer- It is fairly easy to write computer programs without using software engineering methods and techniques. Many companies have drifted into software development as their products and services have evolved. They do not use software engineering methods in their everyday work. Consequently, their software is often more expensive and less reliable than it should be. (Ch.1) Software costs - Answer- often dominate computer system costs. The costs of software on a PC are often greater than the hardware cost Software costs more to maintain than it does to develop. For systems with a long life, maintenance costs may be several times development costs (Ch.1) What is software? - Answer- Computer programs and associated documentation. Software products may be developed for a particular customer or may be developed for a general market. (Ch.1) What are the attributes of good software? - Answer- Good software should deliver the required functionality and performance to the user and should be maintainable, dependable and usable. (Ch.1) What is software engineering - Answer- Software engineering is an engineering discipline that is concerned with all aspects of software production (Ch.1) What are the fundamental software engineering activates? - Answer- -Software Specification -Software Development -Software Validation -Software Evolution (Ch.1) What is the difference between software engineering and computer science - Answer- Computer science focuses on theory and fundamentals software engineering is concerned with the practicalities of developing and delivering useful software (Ch.1) What is the difference between software engineering and system engineering - Answer- System engineering is concerned with all aspects of computer-based systems development including hardware software and process engineering software engineering is part of this more general process