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| Section | Objectives |
|---|---|
| The Tasks of the Test Analyst in the Test Process | - Testing in the Software Development Lifecycle - Tasks Related to Work Products - Involvement in Test Activities |
| The Tasks of the Test Analyst in Risk-Based Testing | - Risk Control - Risk Analysis |
| Test Analysis and Test Design | - Behavior-Based Test Techniques - Experience-based Testing - Data-Based Test Techniques - Rule-Based Test Techniques |
| Software Defect Prevention | - Mitigating Recurrence of Defects - Defect Prevention Practices - Supporting Phase Containment |
| Testing Quality Characteristics | - Functional Testing - Compatibility Testing - Usability Testing - Flexibility Testing |
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NEW QUESTION # 12
You are working on a project to build a purchasing system. The main requirements for the system are that it shall:
* Allow users to enter details of items that they wish to have purchased and, from these details, create a purchase request.
* Take each purchase request through a workflow that will allow the requestor's line manager to approve the request, reject it or return it for clarification / modification.
* Forward approved requests to the Purchasing Department.
* Allow purchasers to find the best available supplier for each approved request and place the request on that supplier as a purchase order.
The solution is being developed according to the company's traditional V-model methodology. The requirements are clearly documented and include a business process model.
The main release has now been live for three months and you are working on the first maintenance release.
The test manager has asked you, the senior TA, to identify those parts of the test process which were most and least effective at finding defects in the main release.
You have collected statistics for the independent test activities, i.e. excluding developers' testing, including only the 178 defects in the three highest of your five defect severity levels. The results are presented in the table below:
Assume that all defects not found at the first opportunity could have been, e.g. that all defects that escaped into acceptance testing were within the scope and objectives of system testing. By applying Defect detection percentage (DDP) analysis, which test activity was LEAST effective?
Answer: C
Explanation:
The correct answer is B . CTAL-TA v4.0 explains that Defect Detection Percentage is used to evaluate how effectively a test level or activity detects defects, and a low DDP indicates a high percentage of escaped defects, meaning the activity was ineffective and should be analyzed for improvement. The official CTAL-TA sample-answer material gives the formula as DDP = D / (D + E) , where D is defects detected in that phase and E is defects that escaped that phase and were detected later.
For test analysis including requirements review , only requirements defects are in scope at the first opportunity. It found 13 requirements defects, while 52 requirements defects escaped and were found later: 12 in test design, 20 in system testing, 10 in acceptance testing, and 10 in live operation. Therefore, DDP = 13 / (13 + 52) = 13 / 65 = 20% .
For comparison, test design found 40 of the 100 defects it could have found, so DDP = 40% . System testing found 75 of 125 possible remaining defects, so DDP = 60% . Acceptance testing found 25 of 50 possible remaining defects, so DDP = 50% . The lowest DDP is therefore test analysis, including requirements review . Reference: CTAL-TA v4.0, Section 5.3.1 Analyzing Test Results to Improve Defect Detection .
NEW QUESTION # 13
Your company, which specializes in medical software, has designed an application for use on smartphones and tablets that calculates a person's BMI, Body Mass Index.
How can a Test Analyst BEST contribute to interoperability testing for this application?
Answer: D
Explanation:
The correct answer is A because interoperability testing verifies whether the test object can interact correctly with other components or systems, exchange information, and use the exchanged information correctly.
CTAL-TA v4.0 states that interoperability testing verifies compatibility with components or systems with which the test object is intended to interact, and that its goal is to verify that two or more systems can exchange information and mutually use the exchanged information. It also specifically identifies defects in data transformation, interpretation or use of exchanged data, communication flows, protocols, standards compliance, and end-to-end functionality as interoperability concerns.
For a BMI medical application, integration with a national health service system and the correct receiving and processing of a BMI data file directly tests external system interaction and exchanged-data correctness.
Option B is accessibility testing, not interoperability. Option C describes coexistence testing, which CTAL- TA separates from interoperability under compatibility testing. Option D is adaptability or cross-platform environment testing because it checks target devices and operating systems, not interaction with another system. Reference: CTAL-TA v4.0, Section 4.4 Compatibility Testing , especially Interoperability Testing
.
NEW QUESTION # 14
You are working on a project to replace an old sales and merchandising system with a new system that will be based on modern platforms. The old system is still in production but is poorly documented and expensive to maintain. The new version will be developed using modern technology. The main requirements for the system are that it shall:
* Load sales data, sent electronically from the stores each evening, into a central database.
* Produce actual sales reports for the merchandisers, whose job is to manage stock levels in stores.
* Produce sales forecast reports, based on a combination of sales history and forecasting parameters. The parameters will be entered by the merchandisers into a browser-based front end and the reports will be produced overnight. The users will be able to see the reports next day, on screen or in print, by requesting this through the browser.
Requirements 1 and 2 are satisfied by the existing system and will be rewritten with no significant functional changes. Requirement 3 is new and has been clearly specified. Because of the poor test basis you have decided to perform experience-based functional correctness testing for requirements 1 and 2 with the support of checklists. Which would be the BEST items to include in the checklist for testing Requirement 2?
a) Does the sales quantity in the database for any one product in a particular store, equal the sales data input for that product / store?
b) Does the total sales value in the report for all products in a particular store, equal the sales data input for that store?
c) Does the sales quantity in the report for any one product in a particular store, equal the sales data input for that product / store?
d) Does successful login allow access to the report parameter entry features?
e) Does the total sales value in the database for all products in a particular store, equal the sales data input for that store?
Answer: B
Explanation:
The correct answer is C because Requirement 2 is specifically about producing actual sales reports for merchandisers. CTAL-TA v4.0 states that checklist-based testing helps the Test Analyst cover known essential aspects of a test item, prevents overlooking critical areas, and supports experience-based testing when documentation is weak or changing. It also states that checklist items should be clear, specific, relevant, actionable, measurable, and answerable with yes, no, or not applicable.
Checklist item b is relevant because it verifies that the report total sales value for a store matches the sales input for that store. Checklist item c is also relevant because it verifies that the report shows the correct sales quantity for a specific product/store combination. These two checks directly test the functional correctness of the actual sales reports .
Item a is not the best fit because it checks data in the database , which belongs more directly to Requirement
1, loading sales data into the central database. Item d belongs to Requirement 3, because report parameter entry is part of the new sales forecast reporting feature. Item e again checks database content rather than report output. Reference: CTAL-TA v4.0, Section 3.4.2 Checklists Supporting Experience-Based Test Techniques and Section 4.1 Functional Testing .
NEW QUESTION # 15
You are working on an Agile project to develop a web-based online dating service that will allow members of the service to enter their profile, meet people who would be a good match for them, arrange social events with those people and to block people with whom they do not want contact.
The features for member profile entry have been delivered and tested. The current iteration will deliver profile matching. The regression tests for profile entry will be the acceptance criteria for its user stories. These tests have not been automated yet so you have decided to perform regression testing on the basis of a checklist.
Which checklist would be BEST in these circumstances?
Answer: C
Explanation:
The correct answer is A . CTAL-TA v4.0 describes checklist-based testing as an experience-based technique in which checklist items guide the tester and help avoid missing important checks. It distinguishes checklist use from fully scripted testing, but the checklist must still be concrete enough to support the objective of the test session.
Here, the goal is regression testing for profile entry. The scenario says the regression tests for profile entry will be the acceptance criteria for its user stories , but those tests have not been automated yet. Since the team needs to manually perform regression testing now, the best checklist is a read-do checklist built from the acceptance tests of the user stories. A read-do checklist is appropriate when the tester should read each item and perform it as an action. That fits manual regression execution: run this acceptance test, check the result, then proceed to the next item.
Option B is weaker because acceptance criteria are statements of expected behavior, not necessarily executable test actions. Option C is less suitable because a do-confirm checklist is used when tasks are performed from memory or normal workflow and then checked afterward; regression testing needs active, item-by-item execution. Option D combines both weaknesses: acceptance criteria instead of acceptance tests, and do-confirm instead of read-do. Reference: CTAL-TA v4.0, Section 3.4.2 Checklists Supporting Experience-Based Test Techniques .
NEW QUESTION # 16
The following use case diagram shows the process of raising a Purchase Request (PR) and getting it authorized. Details are entered in batches; any that fail validation will be rejected and must be re-entered. The details will indicate whether the request is a normal one or an emergency one. Normal requests must be authorized by the department manager, who may refuse to do so. Emergency requests will be automatically authorized and reported to the manager.
The test strategy states that:
* all combinations of extensions and exceptions, as well as the main scenario, shall be tested
* loops shall get simple loop coverage where the maximum number of iterations for validation exceptions is 3 and the typical number is 2.
What is the minimum quantity of test cases that will be needed to obtain this coverage?
Answer: A
Explanation:
The correct answer is B , because the minimum required set is 6 test cases . CTAL-TA v4.0 explains that scenario-based testing derives tests from scenario models, including the main scenario plus alternative and exception flows. It also states that simple loop coverage requires testing a loop when it is skipped, executed exactly once, executed more than once using a typical number of iterations, and executed with the maximum number of iterations if possible. Here, the validation exception loop has maximum 3 and typical 2 , so the validation loop must be covered with 0, 1, 2, and 3 iterations.
The feasible scenario combinations are:
* Main scenario: normal request, validation succeeds, manager approves.
* Validation exception only, then normal approval.
* Emergency request only.
* Normal request refused by manager only.
* Validation exception combined with emergency request.
* Validation exception combined with manager refusal.
The validation loop iteration coverage can be distributed across the validation-related cases: one case with 1 failed validation, one with 2 failed validations, and one with 3 failed validations. The main scenario supplies the 0-iteration case. Emergency and manager-refusal scenarios cannot be combined because an emergency request bypasses normal manager authorization. Therefore, fewer than six tests would miss either a required feasible extension/exception combination or one of the required loop-coverage cases. Reference: CTAL-TA v4.0, Scenario-Based Testing and Simple Loop Coverage .
NEW QUESTION # 17
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