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Sse 402: Component Based Software Development Question Paper
Sse 402: Component Based Software Development
Course:Software Enigineering
Institution: Kenyatta University question papers
Exam Year:2010
KENYATTA UNIVERSITY
UNIVERSITY EXAMINATIONS 2009/2010
SECOND SEMESTER EXAMINATION FOR THE DEGREE OF BACHELOR
OF SCIENCE (SOFTWARE ENGINEERING)
SSE 402:
COMPONENT BASED SOFTWARE DEVELOPMENT
DATE: Thursday, 15th April, 2010
TIME: 11.00 a.m. – 1.00 p.m.
------------------------------------------------------------------------------------------------------------
INSTRUCTIONS:
Answer THREE questions. Question ONE is Compulsory. Each question carries equal
marks.
Q.1
a)
Define a software component
(2 marks)
b)
Identify the key purpose of software components
(2 marks)
c)
Using an UML illustration briefly discuss the parts that make up a
software component.
(4 marks)
d)
With the aid of a diagram describe what is an Object Request Broker?
(4 marks)
e)
Identify and comment on the three key properties that distinguish a
component from other software.
(4 marks)
f)
Define the different type of middleware and state one example of their use
(4 marks)
Q.2
a)
Define black box components and the key benefits or disadvantages of
each.
(2 marks)
b)
With the aid of an example discuss software component Interfaces and
how they help improve software development
(4 marks)
Page 1 of 3
c)
What is “glue code” in the CBSD context and how is it different from a
wrapper? Explain by giving pseudo-code example(s) in a business
environment.
(6 marks)
d)
An online match ticket system is required for the 2010 world cup. Users
can purchase tickets based on a match schedule using mpesa or credit card
and can then print an eTicket. The price of a ticket depends on the type of
seat. Tickets are not refundable once sold. Show the components required
would interact to print a ticket which shows the fans name, match, the
price, and stadium, type of seat and date and time.
i)
Show the key objects, actors and user cases.
(2 marks)
ii)
Illustrate UML components for the above system including the
interface required for the ticket.
(6 marks)
Q.3
a)
Discuss the various types of component frameworks and give examples of
each.
(4 marks)
b)
With relevant examples state the key advantages and disadvantages of a
component framework
(4 marks)
c)
Discuss patterns and how they are useful in the component software
development
(4 marks)
d)
With the aid of an illustration describe each of the five tiers in a
component architecture used to deliver component services.
(8 marks)
Q.4
a)
What is a component model
(2 marks)
b)
Describe the component model runtime environment
(3 marks)
c)
Describe any one of the listed component models, stating their origin,
supported technology environment, how they are stored and retrieved and
the strengths and weaknesses of the model.
(7 marks)
i)
Net (DCOM/COM)
ii)
Java Beans/Java Enterprise Beans
iii)
COBRA/CMM.
Page 2 of 3
d)
You have recently joined a manufacturing organization that is in the
process of selecting a new manufacturing ERP application to replace aging
and obsolete system purchased 15 years ago. The company has
extensively modified the old system to support its interface to third part
subsystem that control the plant operations and equipment. It has been
difficult to find a replacement in the market. Write an executive summary
highlighting the key points you would use to support the purchase of an
ERP that is component based.
(8 marks)
Q.5
a)
Explain the purpose of middleware and why is it different from regular
software components
(4 marks)
b)
Discuss the non functional design component realization strategies that
need to be considered after performing a gap analysis of the user
requirements.
(6 marks)
c)
With the aid of an illustration discuss each of the stages of the Component
Software Development Life Cycle and the key risk in each stage.
(10 marks)
Page 3 of 3
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