Describe four software maintenance types

It has been argued that the software crisis led to the birth of the software engineering discipline in the late 1960s. What is software crisis

There are still many software experts who are of the opinion that the software crisis is not over yet. 
Do you concur with this opinion? 

With suitable examples, distinguish between software processes and software process models.

A university clerk needs to check the number of foreign students in the university.

All university students are registered in a three tier web based database. This means that the clerk has to type his search request at the html form, then click submit button. The submit click event forwards the request
to a middle level application (e.g JavaServlet), which in turn forwards the request to a database. The database sends a reply back to the middle level application, which in turn forwards the reply back to the clerk. Represent this interaction using a state transition diagram. 

 Distinguish between the following:  

i. User requirements and system requirements 

ii. Domain requirements and non-functional requirements. 

You recently went to interview some administrative staff in an effort to extract requirements on how they want the oncoming university website to look like. One staff member gave a requirement that “we want the homepage of our website to be nicely done”. Identify some of the problems with this user requirement? 

Describe some of the challenges you are likely to encounter when eliciting domain requirements in the medical profession. 


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