Reference no: EM132310349

Software Testing Assignment -

This assignment has 2 parts.

Part 1 -

Question 1 - You are asked to write a one-page essay describing a real software failure, its impact, and the possible ways the failure could have been avoided. A real software failure is one that actually occurred and had a non-trivial impact (e.g., it was mentioned in the media). You are encouraged to research several software failures but are asked to choose only one failure to describe in your survey.

Part 2 -

Case Study - MTEST Multiple choice study program

MTEST is a program that grades multiple-choice examinations. The input is a data file named OCR, with multiple records that are 80 characters long. Per the file specification, the first record is a title used as a title on each output report. The next set of records describes the correct answers on the exam. These records contain a "2" as the last character in column 80. In the first record of this set, the number of questions is listed in columns 1-3 (a value of 1-999). Columns 10-59 contain the correct answers for questions 1-50 (any character is valid as an answer). Subsequent records contain, in columns 10-59, the correct answers for questions 51-100,101-150, and so on.

The third set of records describes the answers of each student; each of these records contains a "3" in column 80. For each student, the first record contains the student's name or number in columns 1- 9 (any characters); columns 10-59 contain the student's answers for questions 1-50. If the test has more than 50 questions, subsequent records for the student contain answers 51-100, 101-150, and so on, in columns 10-59. The maximum number of students is 200. The input data are illustrated in Figure 1 (attached). The four output records are:

1. A report sorted by student identifier, showing each student's grade (percentage of answers correct) and rank.

2. A similar report, but sorted by grade.

3. A report indicating the mean, median, and standard deviation of the grades.

4. A report, ordered by question number, showing the percent- age of students answering each question correctly.

Questions -

1. Identify and list test cases.

2. Identify boundary value cases related to the student's answers.

3. Identify some error guessing test cases for the program.

Attachment:- Assignment File.rar