software testing aplikasi

Applied Software Project Management
Andrew Stellman & Jennifer Greene
Applied Software Project
Management
Software Testing

Quality
Quality means “conformance to requirements”
The best testers can only catch defects that are
contrary to specification.
Testing does not make the software perfect.
If an organization does not have good
requirements engineering practices then it will be
very hard to deliver software that fills the users’
needs, because the product team does not really
know what those needs are.

Test Plans
The goal of test planning is to establish the list of
tasks which, if performed, will identify all of the
requirements that have not been met in the software.
The main work product is the test plan.
 The test plan documents the overall approach to the test. In
many ways, the test plan serves as a summary of the test
activities that will be performed.
 It shows how the tests will be organized, and outlines all of
the testers’ needs which must be met in order to properly
carry out the test.
 The test plan should be inspected by members of the
engineering team and senior managers.

Test Cases
A test case is a description of a specific interaction that a tester
will have in order to test a single behavior of the software. Test
cases are very similar to use cases, in that they are step-by-
step narratives which define a specific interaction between the
user and the software.
 A typical test case is laid out in a table, and includes:
• A unique name and number
• A requirement which this test case is exercising
• Preconditions which describe the state of the software before the test
case (which is often a previous test case that must always be run
before the current test case)
• Steps that describe the specific steps which make up the interaction
• Expected Results which describe the expected state of the software
after the test case is executed
Test cases must be repeatable.
 Good test cases are data-specific, and describe each interaction
necessary to repeat the test exactly.

Test Execution
The software testers begin executing the test plan after the
programmers deliver the alpha build, or a build that they feel is
feature complete.
 The alpha should be of high quality—the programmers should feel
that it is ready for release, and as good as they can get it.
There are typically several iterations of test execution.
 The first iteration focuses on new functionality that has been added
since the last round of testing.
 A regression test is a test designed to make sure that a change to
one area of the software has not caused any other part of the
software which had previously passed its tests to stop working.
 Regression testing usually involves executing all test cases which
have previously been executed.
 There are typically at least two regression tests for any software
project.

Defect Tracking
The defect tracking system is a program that testers
use to record and track defects. It routes each defect
between testers, developers, the project manager
and others, following a workflow designed to ensure
that the defect is verified and repaired.
 Every defect encountered in the test run is recorded and
entered into a defect tracking system so that it can be
prioritized.
 The defect workflow should track the interaction between the
testers who find the defect and the programmers who fix it. It
should ensure that every defect can be properly prioritized
and reviewed by all of the stakeholders to determine
whether or not it should be repaired. This process of review
and prioritization referred to as triage.

Smoke Tests
A smoke test is a subset of the test
cases that is typically representative of
the overall test plan.
Smoke tests are good for verifying proper
deployment or other non invasive changes.
They are also useful for verifying a build is
ready to send to test.
Smoke tests are not substitute for actual
functional testing.

Test Automation
Test automation is a practice in which testers
employ a software tool to reduce or eliminate
repetitive tasks.
Testers either write scripts or use record-and-
playback to capture user interactions with the
software being tested.
This can save the testers a lot of time if many
iterations of testing will be required.
It costs a lot to develop and maintain automated
test suites, so it is generally not worth developing
them for tests that will executed only a few times.

Postmortem Reports
The postmortem report is an overall account
of the team’s experience in building the
software, and of the experience of the users
and stakeholders in working with the team.
The report should contain an honest assessment
of how the team members, users, and
stakeholders perceived the end product, and
assessed the decisions made throughout the
project.
The purpose of the post-mortem report is to
highlight the team’s successes and identify any
problems which should be fixed in future releases.

software testing aplikasi

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software testing aplikasi