Q1. Write a note on myths of Software
Answer : Myth is defined as “widely held but false notation” by the oxford dictionary, so assign other fields software arena also has some myths to demystify. Pressman insists “Software myths- beliefs about software and the process used to build it- can be traced to earliest days of computing. Myths have number of attributes that have made them insidious.” So software myths prevail but though they do are not clearly visible they have the potential to harm all the parties involved in the software development process mainly the developer team. Tom Demark expresses “In the absence of meaningful standards, a new industry like software comes to depend instead on folklore.” The given statement points out that the software industry caught pace just some decades back so it has not matured to formidable level and there are no strict standards in software development. There does not exist one best method of software development that ultimately equates to the ubiquitous software myths. Primarily, there are three types of software myths, all the three are stated below: 1.Management Myth2.CustomerMyth3.Practitioner/Developer Myth before defining the above three myths one by one lets scrutinize why these myths occur on the first place. The picture below tries to clarify the complexity of the problem of software development requirement analysis mainly between the developer team and the clients
SOFTWARE MYTHS:
There are many myths that are associated with the software development world. Unlike ancient myths which provide human lessons, software myths transmit confusion. Various Software Myths are given below:
- Software can work right at the first time
- We cannot expect software to work properly at the first time. For example, you go to an aeronautics engineer, and ask him to build a jet fighter; he will quote us the price. But if we demand it to be put into production without building its prototype, then he will refuse the job. Software engineers are often asked to do that sort of work that is quite unexpected.
- Software is easy to change
Well, source code of the software is easy to edit, but is quite different from saying that it is easy to change. Because changes made in software without introducing problems are very difficult. Verification of the complete system is needed after every change. Therefore software is not easy to change and proper care is needed during every change.
- Software with more features is a better software
It is a totally false statement that software with more features is better software. Best software is that which does one task well.
- Reusing Software increases safety
Reusing software does not increase safety. Reusing code can helps in improving the development efficiency, but it needs a lot of analysis to check its suitability and testing to see if it works.
- Addition of more software engineers will cover up the delay
It is not true in all the cases. Sometimes, by adding more software engineers during the project, we may further delay the project. Therefore it is not true in our case, but adding more people can certainly cover up the delay in civil engineering work. Software myths list is endless. Various other software myths are like computer provides greater reliability than the device they replaced; testing errors can remove the errors etc.
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Q2. Explain Version Control & Change Control.
Q4. Explain
ii. Software is engineered & not manufactured.
Q5.Explain the Different types of Software Measurement Techniques.
Q6.Write a Note on Spiral Model.
