) Functional correctness of software
This refers to the extent to which a program satisfies its specification and fulfills the user‘s
mission objectives. Functional correctness of software can be measured by performing a
structured walkthrough (Specifically a program review) which establishes whether a program
satisfies its specification. The functional correctness of a program can thus be determined
from the number of issues raised during the structured walkthrough. Functional correctness
of software may also be measured by performing black box testing. The number of errors
discovered during the testing exercise would thus indicate the functional correctness of the
software.
(ii) Reliability of the software
This refers to the extent to which a program can be expected to perform its intended
function with required precision. Reliability could be measured by software quality metrics
(software quality measurement techniques) such as the rate of failure of occurrence (ROCOF)
which is a measure of the occurrence with which an expected behaviour is likely to occur.
Another metric i.e. the mean time to failure (MTTF), which is a measure of the time between
observed system failures, may also be used.
gregorymasila answered the question on November 23, 2017 at 13:08
-
(i) Networks are increasingly being managed remotely. Name three security implications of remote network management and three mechanisms that are needed for remote network management
(Solved)
(i) Networks are increasingly being managed remotely. Name three security
implications of remote network management and three mechanisms that are needed
for remote network management.
(ii) Examine some of the challenges facing the convergence of networks in business
organizations.
Date posted:
November 23, 2017
.
Answers (1)
-
Who should be involved in a requirement review? Suggest their role in the requirement review
(Solved)
Who should be involved in a requirement review? Suggest their role in the requirement review.
Date posted:
November 23, 2017
.
Answers (1)
-
Differentiate between the following terms:(i.) Hardware and software;(ii.) Application software and system software;(iii.) Bit and byte; (iv.) RAM and ROM;...
(Solved)
Differentiate between the following terms:
(i.) Hardware and software;
(ii.) Application software and system software;
(iii.) Bit and byte;
(iv.) RAM and ROM;
(v.) Data and information.
Date posted:
November 23, 2017
.
Answers (1)
-
Describe three major factors that affect the performance of a computer operation.For each factor, state one example of measurement.
(Solved)
Describe three major factors that affect the performance of a computer operation.
For each factor, state one example of measurement.
Date posted:
November 23, 2017
.
Answers (1)
-
Examine the issues to be considered when planning for information systems training
(Solved)
Examine the issues to be considered when planning for information systems training.
Date posted:
November 23, 2017
.
Answers (1)
-
Explain the following database security features: (i) Authorization (ii) Authentication
(Solved)
Explain the following database security features:
(i) Authorization
(ii) Authentication
Date posted:
November 23, 2017
.
Answers (1)
-
Describe the functional components of a typical computer system
(Solved)
Describe the functional components of a typical computer system.
Date posted:
November 23, 2017
.
Answers (1)
-
Describe how a software developer can make use of the internet.
(Solved)
Describe how a software developer can make use of the internet.
Date posted:
November 23, 2017
.
Answers (1)
-
Kenfin Ltd is a medium size commercial bank having branches in major towns in Kenya. The bank provides over the counter services and is planning...
(Solved)
Kenfin Ltd is a medium size commercial bank having branches in major towns in Kenya. The bank provides over the counter services and is planning to introduce online banking services. The online banking services will enable the bank to centralize some information processing systems while decentralizing others. You are the project manager overseeing the implementation of the online banking services project.
(i.) What information systems services would you recommend to be centralized or
decentralized? Justify your answer citing any assumptions made.
(ii.) Describe three key risks that may affect the duration and/or cost of the project.
Date posted:
November 23, 2017
.
Answers (1)
-
Computerized accounting/financial systems still need internal controls to enhance the integrity of such systems. Explain four internal control procedures that need to be put in place...
(Solved)
Computerized accounting/financial systems still need internal controls to enhance the integrity of such systems. Explain four internal control procedures that need to be put in place to guarantee the integrity of such systems.
Date posted:
November 23, 2017
.
Answers (1)
-
In many computer installations, the most common form of terminal is the visual display unit (VDU). State and explain key features of a VDU terminal....
(Solved)
In many computer installations, the most common form of terminal is the visual display unit (VDU). State and explain key features of a VDU terminal.
Date posted:
November 23, 2017
.
Answers (1)
-
In the context of computer programming, differentiate between source code and object code.
(Solved)
In the context of computer programming, differentiate between source code and object code.
Date posted:
November 23, 2017
.
Answers (1)
-
What does an organization's approach to system conversion depend on?
(Solved)
What does an organization's approach to system conversion depend on?
Date posted:
November 23, 2017
.
Answers (1)
-
It is claimed that fourth generation languages (4GLs) can reduce delays in applications development and make information freely and readily available.Comment on this statement discussing four...
(Solved)
It is claimed that fourth generation languages (4GLs) can reduce delays in applications development and make information freely and readily available.
Comment on this statement discussing four grounds that consistently support or disapprove it.
Date posted:
November 23, 2017
.
Answers (1)
-
Suggest the three types of decisions that a management accounting information system can support indicating the type of accounting information required to support each decision
(Solved)
Suggest the three types of decisions that a management accounting information system can support indicating the type of accounting information required to support each decision.
Date posted:
November 23, 2017
.
Answers (1)
-
In most organisations. the accounting function ranks among the first activities to be computerized. There are various reasons ashy some activities have to be computerised...
(Solved)
In most organisations. the accounting function ranks among the first activities to be
computerised. There are various reasons ashy some activities have to be computerised
before others. These reasons range from staff shortage to initial cost outlay and
maintenance costs.
Required:
(i) Name and explain any four unique properties of the accounting functions that
make it necessary for computerization.
(ii) List four accounting functions that can be automated or computerized.
Date posted:
November 22, 2017
.
Answers (1)
-
What are the functions of a computerization-project steering committee?
(Solved)
What are the functions of a computerization-project steering committee?
Date posted:
November 22, 2017
.
Answers (1)
-
Name two areas of interest in a formal systems walk through process.
(Solved)
Name two areas of interest in a formal systems walk through process.
Date posted:
November 22, 2017
.
Answers (1)
-
What are the four main applications of a database system in a customer department?
(Solved)
What are the four main applications of a database system in a customer department?
Date posted:
November 22, 2017
.
Answers (1)
-
The electronic business (c-business) field is an emerging concept that seems to be revolutionizing the business world yet many companies have failed to exploit the...
(Solved)
The electronic business (c-business) field is an emerging concept that seems to be revolutionizing the business world yet many companies have failed to exploit the opportunities of e-business with their customers and suppliers.
Required:
(i) Name and explain four opportunities e-business may offer to both companies and their customers
(ii) Examine two challenges that may hinder a company's attempt to implement the c-business concept.
Date posted:
November 22, 2017
.
Answers (1)