Wednesday 24 October 2012

GENERAL TESTING INTERVIEW QUESTION


GENERAL TESTING INTERVIEW QUESTION

Q: What is verification?
A: Verification ensures the product is designed to deliver all functionality to the
customer; it typically involves reviews and meetings to evaluate documents,
plans, code, requirements and specifications; this can be done with checklists,
issues lists, walkthroughs and inspection meetings.

Q: What is validation?
A: Validation ensures that functionality, as defined in requirements, is the
intended behavior of the product; validation typically involves actual testing and
takes place after verifications are completed.

Q: What is a walk-through?
A: A walk-through is an informal meeting for evaluation or informational
purposes.

Q: What is an inspection?
A: An inspection is a formal meeting, more formalized than a walk-through and
typically consists of 3-10 people including a moderator, reader (the author of
whatever is being reviewed) and a recorder (to make notes in the document).
The subject of the inspection is typically a document, such as a requirements
document or a test plan. The purpose of an inspection is to find problems and
see what is missing, not to fix anything. The result of the meeting should be
documented in a written report. Attendees should prepare for this type of meeting
by reading through the document, before the meeting starts; most problems are
found during this preparation. Preparation for inspections is difficult, but is one of
the most cost-effective methods of ensuring quality, since bug prevention is more
cost effective than bug detection.

Q: What is quality?
A: Quality software is software that is reasonably bug-free, delivered on time and
within budget, meets requirements and expectations and is maintainable.
However, quality is a subjective term. Quality depends on who the customer is
and their overall influence in the scheme of things. Customers of a software
development project include end-users, customer acceptance test engineers,
testers, customer contract officers, customer management, the development
organization's management, test engineers, testers, salespeople, software
engineers, stockholders and accountants. Each type of customer will have his or
her own slant on quality. The accounting department might define quality in terms
of profits, while an end-user might define quality as user friendly and bug free.

Q: What is a good code?
A: A good code is code that works, is free of bugs and is readable and
maintainable. Organizations usually have coding standards all developers should
adhere to, but every programmer and software engineer has different ideas
about what is best and what are too many or too few rules. We need to keep in
mind that excessive use of rules can stifle both productivity and creativity. Peer
reviews and code analysis tools can be used to check for problems and enforce
standards.

Q: What is a good design?
A: Design could mean to many things, but often refers to functional design or
internal design. Good functional design is indicated by software functionality can
be traced back to customer and end-user requirements. Good internal design is
indicated by software code whose overall structure is clear, understandable,
easily modifiable and maintainable; is robust with sufficient error handling and
status logging capability; and works correctly when implemented.

Q: What is software life cycle?
A: Software life cycle begins when a software product is first conceived and ends
when it is no longer in use. It includes phases like initial concept, requirements
analysis, functional design, internal design, documentation planning, test
planning, coding, document preparation, integration, testing, maintenance,
updates, re-testing and phase-out.

Q: Why are there so many software bugs?
A: Generally speaking, there are bugs in software because of unclear
requirements, software complexity, programming errors, changes in
requirements, errors made in bug tracking, time pressure, poorly documented
code and/or bugs in tools used in software development.
There are unclear software requirements because there is
miscommunication as to what the software should or shouldn't do.
  • Software complexity. All of the followings contribute to the exponential
    growth in software and system complexity: Windows interfaces, client-
    server and distributed applications, data communications, enormous
    relational databases and the sheer size of applications.
  • Programming errors occur because programmers and software
    engineers, like everyone else, can make mistakes.
  • As to changing requirements, in some fast-changing business
    environments, continuously modified requirements are a fact of life.
    Sometimes customers do not understand the effects of changes, or
    understand them but request them anyway. And the changes require
    redesign of the software, rescheduling of resources and some of the
    work already completed have to be redone or discarded and hardware
    requirements can be effected, too.
  • Bug tracking can result in errors because the complexity of keeping track
    of changes can result in errors, too.
  • Time pressures can cause problems, because scheduling of software
    projects is not easy and it often requires a lot of guesswork and when
    deadlines loom and the crunch comes, mistakes will be made.
  • Code documentation is tough to maintain and it is also tough to modify
    code that is poorly documented. The result is bugs. Sometimes there is
    no incentive for programmers and software engineers to document their
    code and write clearly documented, understandable code. Sometimes
    developers get kudos for quickly turning out code, or programmers and
    software engineers feel they have job security if everyone can
    understand the code they write, or they believe if the code was hard to
    write, it should be hard to read.
  • Software development tools, including visual tools, class libraries,
    compilers, scripting tools, can introduce their own bugs. Other times the
    tools are poorly documented, which can create additional bugs.

Q: How do you introduce a New Software QA Process?
A: It depends on the size of the organization and the risks involved. For large
organizations with high-risk projects, a serious management buy-in is required
and a formalized QA process is necessary. For medium size organizations with
lower risk projects, management and organizational buy-in and a slower, step-by-
step process is required. Generally speaking, QA processes should be balanced
with productivity, in order to keep any bureaucracy from getting out of hand. For
smaller groups or projects, an ad-hoc process is more appropriate. A lot depends
on team leads and managers; feedback to developers and good communication
is essential among customers, managers, developers, test engineers and testers.
Regardless the size of the company, the greatest value for effort is in managing
requirement processes, where the goal is requirements that are clear, complete
and testable.

Q: Give me five common problems that occur during
software development.
A: Poorly written requirements, unrealistic schedules, inadequate testing, adding
new features after development is underway and poor communication.
  1. Requirements are poorly written when requirements are unclear,
    incomplete, too general, or not testable; therefore there will be problems.
  2. The schedule is unrealistic if too much work is crammed in too little time.
  3. Software testing is inadequate if none knows whether or not the software
    is any good until customers complain or the system crashes.
  4. It's extremely common that new features are added after development is
    underway.
  5. Miscommunication either means the developers don't know what is
    needed, or customers have unrealistic expectations and therefore
    problems are guaranteed.

Q: Give me five solutions to problems that occur during
software development.
A: Solid requirements, realistic schedules, adequate testing, firm requirements
and good communication.
  1. Ensure the requirements are solid, clear, complete, detailed, cohesive,
    attainable and testable. All players should agree to requirements. Use
    prototypes to help nail down requirements.
  2. Have schedules that are realistic. Allow adequate time for planning,
    design, testing, bug fixing, re-testing, changes and documentation.
    Personnel should be able to complete the project without burning out.
  3. Do testing that is adequate. Start testing early on, re-test after fixes or
    changes, and plan for sufficient time for both testing and bug fixing.
  4. Avoid new features. Stick to initial requirements as much as possible. Be
    prepared to defend design against changes and additions, once
    development has begun and be prepared to explain consequences. If
    changes are necessary, ensure they're adequately reflected in related
    schedule changes. Use prototypes early on so customers' expectations
    are clarified and customers can see what to expect; this will minimize
    changes later on.
  5. Communicate. Require walk-through and inspections when appropriate;
    make extensive use of e-mail, networked bug-tracking tools, tools of
    change management. Ensure documentation is available and up-to-date.
    Use documentation that is electronic, not paper. Promote teamwork and
    cooperation.

Q: Do automated testing tools make testing easier?
A: Yes and no. For larger projects, or ongoing long-term projects, they can be
valuable. But for small projects, the time needed to learn and implement them is
usually not worthwhile. A common type of automated tool is the record/playback
type. For example, a test engineer clicks through all combinations of menu
choices, dialog box choices, buttons, etc. in a GUI and has an automated testing
tool record and log the results. The recording is typically in the form of text,
based on a scripting language that the testing tool can interpret. If a change is
made (e.g. new buttons are added, or some underlying code in the application is
changed), the application is then re-tested by just playing back the recorded
actions and compared to the logged results in order to check effects of the
change. One problem with such tools is that if there are continual changes to the
product being tested, the recordings have to be changed so often that it becomes
a very time-consuming task to continuously update the scripts. Another problem
with such tools is the interpretation of the results (screens, data, logs, etc.) that
can be a time-consuming task.

Q: What makes a good test engineer?
A: A Test Engineer
  • Has a "test to break" attitude,
  • Takes the point of view of the customer,
  • Has a strong desire for quality,
  • Has an attention to detail, He's also
  • Tactful and diplomatic and
  • Has well a communication skill, both oral and written. And he
  • Has previous software development experience, too.
Good test engineers have a "test to break" attitude, they take the point of view of the
customer, have a strong desire for quality and an attention to detail. Tact and diplomacy
are useful in maintaining a cooperative relationship with developers and an ability to
communicate with both technical and non-technical people. Previous software
development experience is also helpful as it provides a deeper understanding of the
software development process, gives the test engineer an appreciation for the
developers' point of view and reduces the learning curve in automated test tool
programming.

Q: What makes a good QA engineer?
A: The same qualities a good test engineer has are useful for a QA engineer.

Q: What makes a good resume?
A: On the subject of resumes, there seems to be an unending discussion of whether you
should or shouldn't have a one-page resume. The followings are some of the comments I
have personally heard: "Well, Joe Blow (car salesman) said I should have a one-page
resume." "Well, I read a book and it said you should have a one page resume." "I can't
really go into what I really did because if I did, it'd take more than one page on my
resume." "Gosh, I wish I could put my job at IBM on my resume but if I did it'd make my
resume more than one page, and I was told to never make the resume more than one
page long." "I'm confused, should my resume be more than one page? I feel like it
should, but I don't want to break the rules." Or, here's another comment, "People just
don't read resumes that are longer than one page." I have heard some more, but we can
start with these. So what's the answer? There is no scientific answer about whether a
one-page resume is right or wrong. It all depends on who you are and how much
experience you have. The first thing to look at here is the purpose of a resume. The
purpose of a resume is to get you an interview. If the resume is getting you interviews,
then it is considered to be a good resume. If the resume isn't getting you interviews, then
you should change it. The biggest mistake you can make on your resume is to make it
hard to read. Why? Because, for one, scanners don't like odd resumes. Small fonts can
make your resume harder to read. Some candidates use a 7-point font so they can get
the resume onto one page. Big mistake. Two, resume readers do not like eye strain
either. If the resume is mechanically challenging, they just throw it aside for one that is
easier on the eyes. Three, there are lots of resumes out there these days, and that is also
part of the problem. Four, in light of the current scanning scenario, more than one page is
not a deterrent because many will scan your resume into their database. Once the
resume is in there and searchable, you have accomplished one of the goals of resume
distribution. Five, resume readers don't like to guess and most won't call you to clarify
what is on your resume. Generally speaking, your resume should tell your story. If you're
a college graduate looking for your first job, a one-page resume is just fine. If you have a
longer story, the resume needs to be longer. Please put your experience on the resume
so resume readers can tell when and for whom you did what. Short resumes -- for people
long on experience -- are not appropriate. The real audience for these short resumes is
people with short attention spans and low IQs. I assure you that when your resume gets
into the right hands, it will be read thoroughly.

Q: What makes a good QA/Test Manager?
A: QA/Test Managers are familiar with the software development process; able
to maintain enthusiasm of their team and promote a positive atmosphere; able to
promote teamwork to increase productivity; able to promote cooperation between
Software and Test/QA Engineers, have the people skills needed to promote
improvements in QA processes, have the ability to withstand pressures and say
*no* to other managers when quality is insufficient or QA processes are not being
adhered to; able to communicate with technical and non-technical people; as well
as able to run meetings and keep them focused.

Q: What is the role of documentation in QA?
A: Documentation plays a critical role in QA. QA practices should be
documented, so that they are repeatable. Specifications, designs, business rules,
inspection reports, configurations, code changes, test plans, test cases, bug
reports, user manuals should all be documented. Ideally, there should be a
system for easily finding and obtaining of documents and determining what
document will have a particular piece of information. Use documentation change
management, if possible.

Q: What about requirements?
A: Requirement specifications are important and one of the most reliable
methods of insuring problems in a complex software project is to have poorly
documented requirement specifications. Requirements are the details describing
an application's externally perceived functionality and properties. Requirements
should be clear, complete, reasonably detailed, cohesive, attainable and
testable. A non-testable requirement would be, for example, "user-friendly",
which is too subjective. A testable requirement would be something such as, "the
product shall allow the user to enter their previously-assigned password to
access the application". Care should be taken to involve all of a project's
significant customers in the requirements process. Customers could be in-house
or external and could include end-users, customer acceptance test engineers,
testers, customer contract officers, customer management, future software
maintenance engineers, salespeople and anyone who could later derail the
project. If his/her expectations aren't met, they should be included as a customer,
if possible. In some organizations, requirements may end up in high-level project
plans, functional specification documents, design documents, or other
documents at various levels of detail. No matter what they are called, some type
of documentation with detailed requirements will be needed by test engineers in
order to properly plan and execute tests. Without such documentation there will
be no clear-cut way to determine if a software application is performing correctly.

Q: What is a test plan?
A: A software project test plan is a document that describes the objectives,
scope, approach and focus of a software testing effort. The process of preparing
a test plan is a useful way to think through the efforts needed to validate the
acceptability of a software product. The completed document will help people
outside the test group understand the why and how of product validation. It
should be thorough enough to be useful, but not so thorough that none outside
the test group will be able to read it.

Q: What is a test case?
A: A test case is a document that describes an input, action, or event and its
expected result, in order to determine if a feature of an application is working
correctly. A test case should contain particulars such as a...
  • Test case identifier;
  • Test case name;
  • Objective;
  • Test conditions/setup;
  • Input data requirements/steps, and
  • Expected results.
Please note, the process of developing test cases can help find problems in the
requirements or design of an application, since it requires you to completely think
through the operation of the application. For this reason, it is useful to prepare
test cases early in the development cycle, if possible.

Q: What should be done after a bug is found?
A: When a bug is found, it needs to be communicated and assigned to
developers that can fix it. After the problem is resolved, fixes should be re-tested.
Additionally, determinations should be made regarding requirements, software,
hardware, safety impact, etc., for regression testing to check the fixes didn't
create other problems elsewhere. If a problem-tracking system is in place, it
should encapsulate these determinations. A variety of commercial, problem-
tracking/management software tools are available. These tools, with the detailed
input of software test engineers, will give the team complete information so
developers can understand the bug, get an idea of its severity, reproduce it and
fix it.

Q: What is configuration management?
A: Configuration management (CM) covers the tools and processes used to
control, coordinate and track code, requirements, documentation, problems,
change requests, designs, tools, compilers, libraries, patches, changes made to
them and who makes the changes.

Q: What if the software is so buggy it can't be tested at
all?
A: In this situation the best bet is to have test engineers go through the process
of reporting whatever bugs or problems initially show up, with the focus being on
critical bugs. Since this type of problem can severely affect schedules and
indicates deeper problems in the software development process, such as
insufficient unit testing, insufficient integration testing, poor design, improper build
or release procedures, managers should be notified and provided with some
documentation as evidence of the problem.

Q: How do you know when to stop testing?
A: This can be difficult to determine. Many modern software applications are so
complex and run in such an interdependent environment, that complete testing
can never be done. Common factors in deciding when to stop are...
  • Deadlines, e.g. release deadlines, testing deadlines;
  • Test cases completed with certain percentage passed;
  • Test budget has been depleted;
  • Coverage of code, functionality, or requirements reaches a specified
    point;
  • Bug rate falls below a certain level; or
  • Beta or alpha testing period ends.

Q: What if there isn't enough time for thorough testing?
A: Since it's rarely possible to test every possible aspect of an application, every
possible combination of events, every dependency, or everything that could go
wrong, risk analysis is appropriate to most software development projects. Use
risk analysis to determine where testing should be focused. This requires
judgment skills, common sense and experience. The checklist should include
answers to the following questions:
  • Which functionality is most important to the project's intended purpose?
  • Which functionality is most visible to the user?
  • Which functionality has the largest safety impact?
  • Which functionality has the largest financial impact on users?
  • Which aspects of the application are most important to the customer?
  • Which aspects of the application can be tested early in the development
    cycle?
  • Which parts of the code are most complex and thus most subject to
    errors?
  • Which parts of the application were developed in rush or panic mode?
  • Which aspects of similar/related previous projects caused problems?
  • Which aspects of similar/related previous projects had large
    maintenance expenses?
  • Which parts of the requirements and design are unclear or poorly
    thought out?
  • What do the developers think are the highest-risk aspects of the
    application?
  • What kinds of problems would cause the worst publicity?
  • What kinds of problems would cause the most customer service
    complaints?
  • What kinds of tests could easily cover multiple functionalities?
  • Which tests will have the best high-risk-coverage to time-required ratio?

Q: What if the project isn't big enough to justify
extensive testing?
A: Consider the impact of project errors, not the size of the project. However, if
extensive testing is still not justified, risk analysis is again needed and the
considerations listed under "What if there isn't enough time for thorough testing?"
do apply. The test engineer then should do "ad hoc" testing, or write up a limited
test plan based on the risk analysis.

Q: What can be done if requirements are changing
continuously?
A: Work with management early on to understand how requirements might
change, so that alternate test plans and strategies can be worked out in advance.
It is helpful if the application's initial design allows for some adaptability, so that
later changes do not require redoing the application from scratch. Additionally, try
to...
  • Ensure the code is well commented and well documented; this makes
    changes easier for the developers.
  • Use rapid prototyping whenever possible; this will help customers feel
    sure of their requirements and minimize changes.
  • In the project's initial schedule, allow for some extra time to
    commensurate with probable changes.
  • Move new requirements to a 'Phase 2' version of an application and use
    the original requirements for the 'Phase 1' version.
  • Negotiate to allow only easily implemented new requirements into the
    project; move more difficult, new requirements into future versions of the
    application.
  • Ensure customers and management understand scheduling impacts,
    inherent risks and costs of significant requirements changes. Then let
    management or the customers decide if the changes are warranted; after
    all, that's their job.
  • Balance the effort put into setting up automated testing with the expected
    effort required to redo them to deal with changes.
  • Design some flexibility into automated test scripts;
  • Focus initial automated testing on application aspects that are most likely
    to remain unchanged;
  • Devote appropriate effort to risk analysis of changes, in order to minimize
    regression-testing needs;
  • Design some flexibility into test cases; this is not easily done; the best
    bet is to minimize the detail in the test cases, or set up only higher-level
    generic-type test plans;
  • Focus less on detailed test plans and test cases and more on ad-hoc
    testing with an understanding of the added risk this entails.

Q: What if the application has functionality that wasn't
in the requirements?
A: It may take serious effort to determine if an application has significant
unexpected or hidden functionality, which it would indicate, deeper problems in
the software development process. If the functionality isn't necessary to the
purpose of the application, it should be removed, as it may have unknown
impacts or dependencies that were not taken into account by the designer or the
customer.
If not removed, design information will be needed to determine added testing
needs or regression testing needs. Management should be made aware of any
significant added risks as a result of the unexpected functionality. If the
functionality only affects areas, such as minor improvements in the user
interface, it may not be a significant risk.

Q: How can software QA processes be implemented
without stifling productivity?
A: Implement QA processes slowly over time. Use consensus to reach
agreement on processes and adjust and experiment as an organization grows
and matures. Productivity will be improved instead of stifled. Problem prevention
will lessen the need for problem detection. Panics and burnout will decrease and
there will be improved focus and less wasted effort. At the same time, attempts
should be made to keep processes simple and efficient, minimize paperwork,
promote computer-based processes and automated tracking and reporting,
minimize time required in meetings and promote training as part of the QA
process. However, no one, especially talented technical types, like bureaucracy
and in the short run things may slow down a bit. A typical scenario would be that
more days of planning and development will be needed, but less time will be
required for late-night bug fixing and calming of irate customers.

Q: What if an organization is growing so fast that fixed
QA processes are impossible?
A: This is a common problem in the software industry, especially in new
technology areas. There is no easy solution in this situation, other than...
  • Hire good people
  • Ruthlessly prioritize quality issues and maintain focus on the customer;
  • Everyone in the organization should be clear on what quality means to
    the customer

Q: How is testing affected by object-oriented designs?
A: A well-engineered object-oriented design can make it easier to trace from
code to internal design to functional design to requirements. While there will be
little affect on black box testing (where an understanding of the internal design of
the application is unnecessary), white-box testing can be oriented to the
application's objects. If the application was well designed this can simplify test
design.

Q: Why do you recommend that we test during the
design phase?
A: Because testing during the design phase can prevent defects later on. I
recommend we verify three things...
  1. Verify the design is good, efficient, compact, testable and maintainable.
  2. Verify the design meets the requirements and is complete (specifies all
    relationships between modules, how to pass data, what happens in
    exceptional circumstances, starting state of each module and how to
    guarantee the state of each module).
  3. Verify the design incorporates enough memory, I/O devices and quick
    enough runtime for the final product.

Q: What is quality assurance?
A: Quality Assurance ensures all parties concerned with the project adhere to the
process and procedures, standards and templates and test readiness reviews.

Q: Processes and procedures - why follow them?
A: Detailed and well-written processes and procedures ensure the correct steps are
being executed to facilitate a successful completion of a task. They also ensure a
process is repeatable.

Q: Standards and templates - what is supposed to be in a
document?
A: All documents should be written to a certain standard and template. Standards and
templates maintain document uniformity. It also helps in learning where information is
located, making it easier for a user to find what they want. Lastly, with standards and
templates, information will not be accidentally omitted from a document.

Q: What is black box testing?
A: Black box testing is functional testing, not based on any knowledge of internal software design or code. Black box testing is based on requirements and functionality

Q: What is white box testing?
A: White box testing is based on knowledge of the internal logic of an application's code.
Tests are based on coverage of code statements, branches, paths and conditions.

Q: What is unit testing?
A: Unit testing is the first level of dynamic testing and is first the responsibility of
developers and then that of the test engineers. Unit testing is performed after the
expected test results are met or differences are explainable/acceptable.

Q: What is parallel/audit testing?
A: Parallel/audit testing is testing where the user reconciles the output of the new system
to the output of the current system to verify the new system performs the operations
correctly.

Q: What is functional testing?
A: Functional testing is black-box type of testing geared to functional requirements of an
application. Test engineers should perform functional testing.

Q: What is usability testing?
A: Usability testing is testing for 'user-friendliness'. Clearly this is subjective and depends
on the targeted end-user or customer. User interviews, surveys, video recording of user
sessions and other techniques can be used. Test engineers are needed, because
programmers and developers are usually not appropriate as usability testers.

Q: What is incremental integration testing?
A: Incremental integration testing is continuous testing of an application as new
functionality is recommended. This may require that various aspects of an application's
functionality are independent enough to work separately, before all parts of the program
are completed, or that test drivers are developed as needed. This type of testing may be
performed by programmers, software engineers, or test engineers.

Q: What is integration testing?
A: Upon completion of unit testing, integration testing begins. Integration testing is black
box testing. The purpose of integration testing is to ensure distinct components of the
application still work in accordance to customer requirements. Test cases are developed
with the express purpose of exercising the interfaces between the components. This
activity is carried out by the test team. Integration testing is considered complete, when
actual results and expected results are either in line or differences are
explainable/acceptable based on client input.

Q: What is system testing?
A: System testing is black box testing, performed by the Test Team, and at the start of
the system testing the complete system is configured in a controlled environment. The
purpose of system testing is to validate an application's accuracy and completeness in
performing the functions as designed. System testing simulates real life scenarios that
occur in a "simulated real life" test environment and test all functions of the system that
are required in real life. System testing is deemed complete when actual results and
expected results are either in line or differences are explainable or acceptable, based on
client input.
Upon completion of integration testing, system testing is started. Before system testing,
all unit and integration test results are reviewed by SWQA to ensure all problems have
been resolved. For a higher level of testing it is important to understand unresolved
problems that originate at unit and integration test levels.

Q: What is end-to-end testing?
A: End-to-end testing is similar to system testing, the *macro* end of the test
scale; it is the testing a complete application in a situation that mimics real life
use, such as interacting with a database, using network communication, or
interacting with other hardware, application, or system.

Q: What is regression testing?
A: The objective of regression testing is to ensure the software remains intact. A
baseline set of data and scripts is maintained and executed to verify that
changes introduced during the release have not "undone" any previous code.
Expected results from the baseline are compared to results of the software under
test. All discrepancies are highlighted and accounted for, before testing proceeds
to the next level.

Q: What is sanity testing?
A: Sanity testing is a cursory testing; it is performed whenever a cursory testing
is sufficient to prove the application is functioning according to specifications.
This level of testing is a subset of regression testing. It normally includes a set of
core tests of basic GUI functionality to demonstrate connectivity to the database,
application servers, printers, etc.

Q: What is performance testing?
A: Performance testing verifies loads, volumes and response times, as defined
by requirements. Although performance testing is a part of system testing, it can
be regarded as a distinct level of testing.

Q: What is load testing?
A: Load testing is testing an application under heavy loads, such as the testing of
a web site under a range of loads to determine at what point the system
response time will degrade or fail.

Q: What is installation testing?
A: Installation testing is the testing of a full, partial, or upgrade install/uninstall
process. The installation test is conducted with the objective of demonstrating
production readiness. This test includes the inventory of configuration items,
performed by the application's System Administration, the evaluation of data
readiness, and dynamic tests focused on basic system functionality. Following
installation testing, a sanity test is performed when necessary.

Q: What is security/penetration testing?
A: Security/penetration testing is testing how well the system is protected against
unauthorized internal or external access, or willful damage. This type of testing
usually requires sophisticated testing techniques.

Q: What is recovery/error testing?
A: Recovery/error testing is testing how well a system recovers from crashes,
hardware failures, or other catastrophic problems.

Q: What is compatibility testing?
A: Compatibility testing is testing how well software performs in a particular
hardware, software, operating system, or network environment.

Q: What is comparison testing?
A: Comparison testing is testing that compares software weaknesses and
strengths to those of competitors' products.

Q: What is acceptance testing?
A: Acceptance testing is black box testing that gives the client/customer/project
manager the opportunity to verify the system functionality and usability prior to
the system being released to production. The acceptance test is the
responsibility of the client/customer or project manager, however, it is conducted
with the full support of the project team. The test team also works with the
client/customer/project manager to develop the acceptance criteria.

Q: What is alpha testing?
A: Alpha testing is testing of an application when development is nearing
completion. Minor design changes can still be made as a result of alpha testing.
Alpha testing is typically performed by end-users or others, not programmers,
software engineers, or test engineers.

Q: What is beta testing?
A: Beta testing is testing an application when development and testing are
essentially completed and final bugs and problems need to be found before the
final release. Beta testing is typically performed by end-users or others, not
programmers, software engineers, or test engineers.

Q: What testing roles are standard on most testing
projects?
A: Depending on the organization, the following roles are more or less standard
on most testing projects: Testers, Test Engineers, Test/QA Team Lead, Test/QA
Manager, System Administrator, Database Administrator, Technical Analyst, Test
Build Manager and Test Configuration Manager. Depending on the project, one
person may wear more than one hat. For instance, Test Engineers may also
wear the hat of Technical Analyst, Test Build Manager and Test Configuration
Manager.

Q: What is a Test/QA Team Lead?
A: The Test/QA Team Lead coordinates the testing activity, communicates
testing status to management and manages the test team.

Q: What is a Test Engineer?
A: A Test Engineer is an engineer who specializes in testing. Test engineers
create test cases, procedures, and scripts and generate data. They execute test
procedures and scripts, analyze standards of measurements, evaluate results of
system/integration/regression testing. They also...
  1. Speed up the work of your development staff;
  2. Reduce your risk of legal liability;
  3. Give you the evidence that your software is correct and operates
    properly;
  4. Improve problem tracking and reporting;
  5. Maximize the value of your software;
  6. Maximize the value of the devices that use it;
  7. Assure the successful launch of your product by discovering bugs and
    design flaws, before users get discouraged, before shareholders loose
    their cool and before employees get bogged down;
  8. Help the work of your development staff, so the development team can
    devote its time to build up your product;
  9. Promote continual improvement;
  10. Provide documentation required by FDA, FAA, other regulatory agencies
    and your customers;
  11. Save money by discovering defects 'early' in the design process, before
    failures occur in production, or in the field;
  12. Save the reputation of your company by discovering bugs and design
    flaws; before bugs and design flaws damage the reputation of your
    company.

Q: What is a Test Build Manager?
A: Test Build Managers deliver current software versions to the test environment,
install the application's software and apply software patches, to both the
application and the operating system, set-up, maintain and back up test
environment hardware. Depending on the project, one person may wear more
than one hat. For instance, a Test Engineer may also wear the hat of a Test Build
Manager.

Q: What is a System Administrator?
A: Test Build Managers, System Administrators, Database Administrators deliver
current software versions to the test environment, install the application's
software and apply software patches, to both the application and the operating
system, set-up, maintain and back up test environment hardware. Depending on
the project, one person may wear more than one hat. For instance, a Test
Engineer may also wear the hat of a System Administrator.

Q: What is a Database Administrator?
A: Database Administrators, Test Build Managers, and System Administrators
deliver current software versions to the test environment, install the application's
software and apply software patches, to both the application and the operating
system, set-up, maintain and back up test environment hardware. Depending on
the project, one person may wear more than one hat. For instance, a Test
Engineer may also wear the hat of a Database Administrator.

Q: What is a Technical Analyst?
A: Technical Analysts perform test assessments and validate system/functional
test requirements. Depending on the project, one person may wear more than
one hat. For instance, Test Engineers may also wear the hat of a Technical
Analyst.

Q: What is a Test Configuration Manager?
A: Test Configuration Managers maintain test environments, scripts, software
and test data. Depending on the project, one person may wear more than one
hat. For instance, Test Engineers may also wear the hat of a Test Configuration
Manager.

Q: What is a test schedule?
A: The test schedule is a schedule that identifies all tasks required for a
successful testing effort, a schedule of all test activities and resource
requirements

Q: What is software testing methodology?
A: One software testing methodology is a three step process of...
  1. Creating a test strategy;
  2. Creating a test plan/design; and
  3. Executing tests.
This methodology can be used and molded to your organization's needs.

Q: What is the general testing process?
A: The general testing process is the creation of a test strategy (which
sometimes includes the creation of test cases), creation of a test plan/design
(which usually includes test cases and test procedures) and the execution of
tests.

Q: How do you create a test strategy?
A: The test strategy is a formal description of how a software product will be
tested. A test strategy is developed for all levels of testing, as required. The test
team analyzes the requirements, writes the test strategy and reviews the plan
with the project team. The test plan may include test cases, conditions, the test
environment, a list of related tasks, pass/fail criteria and risk assessment.

Inputs for this process:
  • A description of the required hardware and software components,
    including test tools. This information comes from the test environment,
    including test tool data.
  • A description of roles and responsibilities of the resources required for
    the test and schedule constraints. This information comes from man-
    hours and schedules.
  • Testing methodology. This is based on known standards.
  • Functional and technical requirements of the application. This
    information comes from requirements, change request, technical and
    functional design documents.
  • Requirements that the system can not provide, e.g. system limitations.

Outputs for this process:
  • An approved and signed off test strategy document, test plan, including
    test cases.
  • Testing issues requiring resolution. Usually this requires additional
    negotiation at the project management level.

Q: How do you create a test plan/design?
A: Test scenarios and/or cases are prepared by reviewing functional
requirements of the release and preparing logical groups of functions that can be
further broken into test procedures. Test procedures define test conditions, data
to be used for testing and expected results, including database updates, file
outputs, report results. Generally speaking...
  • Test cases and scenarios are designed to represent both typical and
    unusual situations that may occur in the application.
  • Test engineers define unit test requirements and unit test cases. Test
    engineers also execute unit test cases.
  • It is the test team who, with assistance of developers and clients,
    develops test cases and scenarios for integration and system testing.
  • Test scenarios are executed through the use of test procedures or
    scripts.
  • Test procedures or scripts define a series of steps necessary to perform
    one or more test scenarios.
  • Test procedures or scripts include the specific data that will be used for
    testing the process or transaction.
  • Test procedures or scripts may cover multiple test scenarios.
  • Test scripts are mapped back to the requirements and traceability
    matrices are used to ensure each test is within scope.
  • Test data is captured and base lined, prior to testing. This data serves as
    the foundation for unit and system testing and used to exercise system
    functionality in a controlled environment.
  • Some output data is also base-lined for future comparison. Base-lined
    data is used to support future application maintenance via regression
    testing.
  • A pre-test meeting is held to assess the readiness of the application and
    the environment and data to be tested. A test readiness document is
    created to indicate the status of the entrance criteria of the release.

Inputs for this process:
  • Approved Test Strategy Document.
  • Test tools, or automated test tools, if applicable.
  • Previously developed scripts, if applicable.
  • Test documentation problems uncovered as a result of testing.
  • A good understanding of software complexity and module path coverage,
    derived from general and detailed design documents, e.g. software
    design document, source code and software complexity data.

Outputs for this process:
  • Approved documents of test scenarios, test cases, test conditions and
    test data.
  • Reports of software design issues, given to software developers for
    correction.

Q: How do you execute tests?
A: Execution of tests is completed by following the test documents in a
methodical manner. As each test procedure is performed, an entry is recorded in
a test execution log to note the execution of the procedure and whether or not
the test procedure uncovered any defects. Checkpoint meetings are held
throughout the execution phase. Checkpoint meetings are held daily, if required,
to address and discuss testing issues, status and activities.
  • The output from the execution of test procedures is known as test
    results. Test results are evaluated by test engineers to determine
    whether the expected results have been obtained. All
    discrepancies/anomalies are logged and discussed with the software
    team lead, hardware test lead, programmers, software engineers and
    documented for further investigation and resolution. Every company has
    a different process for logging and reporting bugs/defects uncovered
    during testing.
  • Pass/fail criteria is used to determine the severity of a problem, and
    results are recorded in a test summary report. The severity of a problem,
    found during system testing, is defined in accordance to the customer's
    risk assessment and recorded in their selected tracking tool.
  • Proposed fixes are delivered to the testing environment, based on the
    severity of the problem. Fixes are regression tested and flawless fixes
    are migrated to a new baseline. Following completion of the test,
    members of the test team prepare a summary report. The summary
    report is reviewed by the Project Manager, Software QA (SWQA)
    Manager and/or Test Team Lead.
  • After a particular level of testing has been certified, it is the responsibility
    of the Configuration Manager to coordinate the migration of the release
    software components to the next test level, as documented in the
    Configuration Management Plan. The software is only migrated to the
    production environment after the Project Manager's formal acceptance.
  • The test team reviews test document problems identified during testing,
    and update documents where appropriate.

Inputs for this process:
  • Approved test documents, e.g. Test Plan, Test Cases, Test Procedures.
  • Test tools, including automated test tools, if applicable.
  • Developed scripts.
  • Changes to the design, i.e. Change Request Documents.
  • Test data.
  • Availability of the test team and project team.
  • General and Detailed Design Documents, i.e. Requirements Document,
    Software Design Document.
  • A software that has been migrated to the test environment, i.e. unit
    tested code, via the Configuration/Build Manager.
  • Test Readiness Document.
  • Document Updates.
Outputs for this process:
  • Log and summary of the test results. Usually this is part of the Test
    Report. This needs to be approved and signed-off with revised testing
    deliverables.
  • Changes to the code, also known as test fixes.
  • Test document problems uncovered as a result of testing. Examples are
    Requirements document and Design Document problems.
  • Reports on software design issues, given to software developers for
    correction. Examples are bug reports on code issues.
  • Formal record of test incidents, usually part of problem tracking.
  • Base-lined package, also known as tested source and object code, ready
    for migration to the next level.

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