Skip to content
Chapter 1 : Introduction to Software Engineering
- Characteristics of Software
- Software is developed or engineered, it is not manufactured.
- Although some similarities exist between software development and hardware manufacture, the two activities are fundamentally different.
- In both activities, high quality is achieved through good design, but the manufacturing phase for hardware can introduce quality problems that are nonexistent (or easily corrected) for software.
- Software costs are concentrated in engineering.
- Software projects cannot be managed as if they were manufacturing projects.
- Software development presents a job shop environment.
- Software does not wear out.
- The failure rate of the hardware is high as the hardware components suffer from the Cumulative effects of dust, vibration, abuse, temperature extremes, and many other environmental maladies.
- Stated simply, the hardware begins to wear out.
- Software is not susceptible to the environmental maladies that cause hardware to wear out.
- Undiscovered defects will cause high failure rates early in the life of a program.
- However, these are corrected ideally, without introducing other errors
- Software does not wear out, but it deteriorates.
- Software maintenance involves considerably more complexity than hardware maintenance.
- Time and effort for software development are hard to estimate.
- Testing of software is extremely difficult.
- Software development can’t address each and every requirements of customer.
- It is very difficult to manage software and hardware simultaneously.
How to whitelist website on AdBlocker?
- 1 Click on the AdBlock Plus icon on the top right corner of your browser
- 2 Click on "Enabled on this site" from the AdBlock Plus option
- 3 Refresh the page and start browsing the site