NATIONAL OPEN UNIVERSITY OF NIGERIA

UNIVERSITY VILLAGE, PLOT 91, CASDASTRAL ZONE, NNAMDI AZIKIWE EXPRESS WAY, JABI, ABUJA.
FACULTY OF SCIENCES
SEPTEMBER 2020 EXAMINATION

COURSE CODE: CIT 333

COURSE TITLE: SOFTWARE ENGINEERING

CREDIT UNIT: 2

TIME ALLOWED: 2 HOURS

INSTRUCTIONS: ANSWER QUESTION 1 AND THREE (3) OTHER QUESTIONS

Questions 1a)

(i) System software helps to run the computer hardware and the entire computer system. State any four composition of system software. (2 marks)

(ii) Briefly describe six Sub-disciplines of Software engineering (3 marks)

(iii) Briefly explain the Software life cycle models according as used in software development (3 marks)

1b (i) What are the remedies to software crisis as applicable in software engineering? (3 marks)

(ii) What are the various stages of software development? (2 marks)

(iii) Define Software life cycle models in the concept of software development (3 marks)

1c (i) What the approaches of writing modular program (4 marks)

(ii) Outline the common CASE risks and associated control used in software development process (3 marks)

(iii) What are the Major Tasks in Implementation of software development? (2 marks)

2a Write short notes on the following types of testing methods:

(i) black box testing ,

(ii) white box testing

(iii) Grey Box Testing (9 marks)

2b What are the different types of White box testing (6 marks)

3a (i) Briefly explain Software Quality Assurance Activities (3 marks)

(ii) SQA assures that formal software testing, such as Acceptance testing, is done in accordance with plans and procedures. What are the objectives of SQA in monitoring formal software testing? (6 marks)

3b (i) Outline the SQA activities during the architectural design phase of development software (6 marks)

4a Write short notes following Terms as used in Validation process (12 marks)

(i) Code Validation/Testing

(ii) Integration Validation/Testing:

(iii) Functional Validation/Testing

(iv) User Acceptance Testing or System Validation

4b Programming software offers tools to assist a programmer in writing programs and software using different programming languages. State four programming software tools (3marks)

5a (i) What do you understand by the terms Application software (3marks)

(ii) List any six common applications of software mentioned in 5a (i) above (6 marks)

(5b) What are the software engineering goals specified as a requirement for systems during its life cycle (6 marks)