Maintenance: When the system becomes operational the requirements of the user gets changed. Based on the requirement change request made by the end user the requirement of the system gets changed at the maintenance phase. The changes that are made requires maintenance activities and that are categorized in three following ways they are: Corrective maintenance: It is the maintenance that is made in response with system errors. Adaptive maintenance: It is the maintenance that is made when there is a change in the business environment. Perfective maintenance: It is the maintenance activity that is made when the system needs to be enhanced.

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Answer 1

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Chapter 9, Problem 6P

a)

Program Plan Intro

Maintenance:

When the system becomes operational the requirements of the user gets changed.

Based on the requirement change request made by the end user the requirement of the system gets changed at the maintenance phase.

The changes that are made requires maintenance activities and that are categorized in three following ways they are:

Corrective maintenance:

It is the maintenance that is made in response with system errors.

Adaptive maintenance:

It is the maintenance that is made when there is a change in the business environment.

Perfective maintenance:

It is the maintenance activity that is made when the system needs to be enhanced.

b)

Program Plan Intro

Maintenance:

When the system becomes operational the requirements of the user gets changed.

Based on the requirement change request made by the end user the requirement of the system gets changed at the maintenance phase.

The changes that are made requires maintenance activities and that are categorized in three following ways they are:

Corrective maintenance:

It is the maintenance that is made in response with system errors.

Adaptive maintenance:

It is the maintenance that is made when there is a change in the business environment.

Perfective maintenance:

It is the maintenance activity that is made when the system needs to be enhanced.

c)

Program Plan Intro

Maintenance:

When the system becomes operational the requirements of the user gets changed.

Based on the requirement change request made by the end user the requirement of the system gets changed at the maintenance phase.

The changes that are made requires maintenance activities and that are categorized in three following ways they are:

Corrective maintenance:

It is the maintenance that is made in response with system errors.

Adaptive maintenance:

It is the maintenance that is made when there is a change in the business environment.

Perfective maintenance:

It is the maintenance activity that is made when the system needs to be enhanced.

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[5 marks] Give a recursive definition for the language anb2n where n = 1, 2, 3, ... over the alphabet Ó={a, b}. 2) [12 marks] Consider the following languages over the alphabet ={a ,b}, (i) The language of all words that begin and end an a (ii) The language where every a in a word is immediately followed by at least one b. (a) Express each as a Regular Expression (b) Draw an FA for each language (c) For Language (i), draw a TG using at most 3 states (d) For Language (ii), construct a CFG.

Question 1 Generate a random sample of standard lognormal data (rlnorm()) for sample size n = 100. Construct histogram estimates of density for this sample using Sturges’ Rule, Scott’s Normal Reference Rule, and the FD Rule. Question 2 Construct a frequency polygon density estimate for the sample in Question 1, using bin width determined by Sturges’ Rule.

Generate a random sample of standard lognormal data (rlnorm()) for sample size n = 100. Construct histogram estimates of density for this sample using Sturges’ Rule, Scott’s Normal Reference Rule, and the FD Rule.

Answer 2

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Chapter 9, Problem 6P

a)

Program Plan Intro

Maintenance:

When the system becomes operational the requirements of the user gets changed.

Based on the requirement change request made by the end user the requirement of the system gets changed at the maintenance phase.

The changes that are made requires maintenance activities and that are categorized in three following ways they are:

Corrective maintenance:

It is the maintenance that is made in response with system errors.

Adaptive maintenance:

It is the maintenance that is made when there is a change in the business environment.

Perfective maintenance:

It is the maintenance activity that is made when the system needs to be enhanced.

b)

Program Plan Intro

Maintenance:

When the system becomes operational the requirements of the user gets changed.

Based on the requirement change request made by the end user the requirement of the system gets changed at the maintenance phase.

The changes that are made requires maintenance activities and that are categorized in three following ways they are:

Corrective maintenance:

It is the maintenance that is made in response with system errors.

Adaptive maintenance:

It is the maintenance that is made when there is a change in the business environment.

Perfective maintenance:

It is the maintenance activity that is made when the system needs to be enhanced.

c)

Program Plan Intro

Maintenance:

When the system becomes operational the requirements of the user gets changed.

Based on the requirement change request made by the end user the requirement of the system gets changed at the maintenance phase.

The changes that are made requires maintenance activities and that are categorized in three following ways they are:

Corrective maintenance:

It is the maintenance that is made in response with system errors.

Adaptive maintenance:

It is the maintenance that is made when there is a change in the business environment.

Perfective maintenance:

It is the maintenance activity that is made when the system needs to be enhanced.

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Answer 3

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Chapter 9, Problem 6P

a)

Program Plan Intro

Maintenance:

When the system becomes operational the requirements of the user gets changed.

Based on the requirement change request made by the end user the requirement of the system gets changed at the maintenance phase.

The changes that are made requires maintenance activities and that are categorized in three following ways they are:

Corrective maintenance:

It is the maintenance that is made in response with system errors.

Adaptive maintenance:

It is the maintenance that is made when there is a change in the business environment.

Perfective maintenance:

It is the maintenance activity that is made when the system needs to be enhanced.

b)

Program Plan Intro

Maintenance:

When the system becomes operational the requirements of the user gets changed.

Based on the requirement change request made by the end user the requirement of the system gets changed at the maintenance phase.

The changes that are made requires maintenance activities and that are categorized in three following ways they are:

Corrective maintenance:

It is the maintenance that is made in response with system errors.

Adaptive maintenance:

It is the maintenance that is made when there is a change in the business environment.

Perfective maintenance:

It is the maintenance activity that is made when the system needs to be enhanced.

c)

Program Plan Intro

Maintenance:

When the system becomes operational the requirements of the user gets changed.

Based on the requirement change request made by the end user the requirement of the system gets changed at the maintenance phase.

The changes that are made requires maintenance activities and that are categorized in three following ways they are:

Corrective maintenance:

It is the maintenance that is made in response with system errors.

Adaptive maintenance:

It is the maintenance that is made when there is a change in the business environment.

Perfective maintenance:

It is the maintenance activity that is made when the system needs to be enhanced.

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Answer 4

Question

100%

Chapter 9, Problem 6P

a)

Program Plan Intro

Maintenance:

When the system becomes operational the requirements of the user gets changed.

Based on the requirement change request made by the end user the requirement of the system gets changed at the maintenance phase.

The changes that are made requires maintenance activities and that are categorized in three following ways they are:

Corrective maintenance:

It is the maintenance that is made in response with system errors.

Adaptive maintenance:

It is the maintenance that is made when there is a change in the business environment.

Perfective maintenance:

It is the maintenance activity that is made when the system needs to be enhanced.

b)

Program Plan Intro

Maintenance:

When the system becomes operational the requirements of the user gets changed.

Based on the requirement change request made by the end user the requirement of the system gets changed at the maintenance phase.

The changes that are made requires maintenance activities and that are categorized in three following ways they are:

Corrective maintenance:

It is the maintenance that is made in response with system errors.

Adaptive maintenance:

It is the maintenance that is made when there is a change in the business environment.

Perfective maintenance:

It is the maintenance activity that is made when the system needs to be enhanced.

c)

Program Plan Intro

Maintenance:

When the system becomes operational the requirements of the user gets changed.

Based on the requirement change request made by the end user the requirement of the system gets changed at the maintenance phase.

The changes that are made requires maintenance activities and that are categorized in three following ways they are:

Corrective maintenance:

It is the maintenance that is made in response with system errors.

Adaptive maintenance:

It is the maintenance that is made when there is a change in the business environment.

Perfective maintenance:

It is the maintenance activity that is made when the system needs to be enhanced.

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Answer 5

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Answer 6

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Answer 7

Chapter 9, Problem 6P

a)

Program Plan Intro

Maintenance:

When the system becomes operational the requirements of the user gets changed.

Based on the requirement change request made by the end user the requirement of the system gets changed at the maintenance phase.

The changes that are made requires maintenance activities and that are categorized in three following ways they are:

Corrective maintenance:

It is the maintenance that is made in response with system errors.

Adaptive maintenance:

It is the maintenance that is made when there is a change in the business environment.

Perfective maintenance:

It is the maintenance activity that is made when the system needs to be enhanced.

b)

Program Plan Intro

Maintenance:

When the system becomes operational the requirements of the user gets changed.

Based on the requirement change request made by the end user the requirement of the system gets changed at the maintenance phase.

The changes that are made requires maintenance activities and that are categorized in three following ways they are:

Corrective maintenance:

It is the maintenance that is made in response with system errors.

Adaptive maintenance:

It is the maintenance that is made when there is a change in the business environment.

Perfective maintenance:

It is the maintenance activity that is made when the system needs to be enhanced.

c)

Program Plan Intro

Maintenance:

When the system becomes operational the requirements of the user gets changed.

Based on the requirement change request made by the end user the requirement of the system gets changed at the maintenance phase.

The changes that are made requires maintenance activities and that are categorized in three following ways they are:

Corrective maintenance:

It is the maintenance that is made in response with system errors.

Adaptive maintenance:

It is the maintenance that is made when there is a change in the business environment.

Perfective maintenance:

It is the maintenance activity that is made when the system needs to be enhanced.

Answer 8

Chapter 9, Problem 6P

a)

Program Plan Intro

Maintenance:

When the system becomes operational the requirements of the user gets changed.

Based on the requirement change request made by the end user the requirement of the system gets changed at the maintenance phase.

The changes that are made requires maintenance activities and that are categorized in three following ways they are:

Corrective maintenance:

It is the maintenance that is made in response with system errors.

Adaptive maintenance:

It is the maintenance that is made when there is a change in the business environment.

Perfective maintenance:

It is the maintenance activity that is made when the system needs to be enhanced.

Answer 9

Chapter 9, Problem 6P

a)

Program Plan Intro

Maintenance:

When the system becomes operational the requirements of the user gets changed.

Based on the requirement change request made by the end user the requirement of the system gets changed at the maintenance phase.

The changes that are made requires maintenance activities and that are categorized in three following ways they are:

Corrective maintenance:

It is the maintenance that is made in response with system errors.

Adaptive maintenance:

It is the maintenance that is made when there is a change in the business environment.

Perfective maintenance:

It is the maintenance activity that is made when the system needs to be enhanced.

Answer 10

b)

Program Plan Intro

Maintenance:

When the system becomes operational the requirements of the user gets changed.

Based on the requirement change request made by the end user the requirement of the system gets changed at the maintenance phase.

The changes that are made requires maintenance activities and that are categorized in three following ways they are:

Corrective maintenance:

It is the maintenance that is made in response with system errors.

Adaptive maintenance:

It is the maintenance that is made when there is a change in the business environment.

Perfective maintenance:

It is the maintenance activity that is made when the system needs to be enhanced.

Answer 11

b)

Program Plan Intro

Maintenance:

When the system becomes operational the requirements of the user gets changed.

Based on the requirement change request made by the end user the requirement of the system gets changed at the maintenance phase.

The changes that are made requires maintenance activities and that are categorized in three following ways they are:

Corrective maintenance:

It is the maintenance that is made in response with system errors.

Adaptive maintenance:

It is the maintenance that is made when there is a change in the business environment.

Perfective maintenance:

It is the maintenance activity that is made when the system needs to be enhanced.

Answer 12

c)

Program Plan Intro

Maintenance:

When the system becomes operational the requirements of the user gets changed.

Based on the requirement change request made by the end user the requirement of the system gets changed at the maintenance phase.

The changes that are made requires maintenance activities and that are categorized in three following ways they are:

Corrective maintenance:

It is the maintenance that is made in response with system errors.

Adaptive maintenance:

It is the maintenance that is made when there is a change in the business environment.

Perfective maintenance:

It is the maintenance activity that is made when the system needs to be enhanced.

Answer 13

c)

Program Plan Intro

Maintenance:

When the system becomes operational the requirements of the user gets changed.

Based on the requirement change request made by the end user the requirement of the system gets changed at the maintenance phase.

The changes that are made requires maintenance activities and that are categorized in three following ways they are:

Corrective maintenance:

It is the maintenance that is made in response with system errors.

Adaptive maintenance:

It is the maintenance that is made when there is a change in the business environment.

Perfective maintenance:

It is the maintenance activity that is made when the system needs to be enhanced.

Answer 14

Expert Solution & Answer

Answer 15

Expert Solution & Answer

Answer 16

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Answer 17

Ch. 9 - Prob. 1RQ Ch. 9 - Prob. 2RQ Ch. 9 - Prob. 3RQ Ch. 9 - Prob. 4RQ Ch. 9 - Prob. 5RQ Ch. 9 - What is the minimal data rule in conceptual...Ch. 9 - Prob. 7RQ Ch. 9 - Prob. 8RQ Ch. 9 - What is the data dictionarys function in database...Ch. 9 - Prob. 10RQ

Solution Summary: The author explains maintenance activities that are categorized in three ways: corrective maintenance, adapted maintenance and optimal maintenance.

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Chapter 9 Solutions