Software Reliability Testing Training Crash Course

Software Reliability Testing Training Crash Course by Tonex

By performing software reliability testing, organizations can be certain that their software functions perfectly.

Software reliability testing is especially critical to a company’s reputation, because no organization wants to deliver an inferior end-product.

Software reliability analysts are in agreement over the importance of software reliability metrics in determining the success of a product shouldn’t be underestimated. The ramifications of poor-quality software can be far-reaching and, sometimes, impossible to recover from.

Discovering potential issues before releasing a software product can spare your business from costly expenses associated with rework. More importantly, it can help protect from major bugs and vulnerability issues that very likely will irreversibly impact your brand reputation and consumer trust.

Software reliability testing determines whether the software can perform a failure free operation for a specific period of time in a specific environment. It ensures that the product is fault free and is reliable for its intended purpose.

The specific objectives of reliability testing are many, such as:

• To find the perpetual structure of repeating failures.
• To find the number of failures occurring is the specific period of time.
• To discover the main cause of failure.
• To conduct performance testing of various modules of software product after fixing defects.

Software reliability testing helps to ensure that you deliver a quality end-product. It helps developers and manufacturers identify and fix bugs, improve performance, and test features. By performing reliability testing, you can ensure that your software functions exactly how it should.

Essentially, there are three different types of software reliability testing, such as feature testing where each function in the software should be executed at least once. Also in this testing, interaction between two or more functions should be reduced as well as each function should be properly executed.

Another popular software reliability testing method, regression testing, is basically performed whenever any new functionality is added, old functionalities are removed or the bugs are fixed in an application to make sure with introduction of new functionality or with the fixing of previous bugs, no new bugs are introduced in the application.

The third type, load testing, is carried out to determine whether the application is supporting the required load without getting breakdown. It is performed to check the performance of the software under maximum work load.

Software Reliability Testing Training Crash Course Description

Software reliability testing training course will cover proactive ways to use well-established systematic test planning and design techniques that generate value, not just busywork.

Preemptive software testing allows you to offer better software in shorter amount of time by employing more efficient testing, while also producing the value that affects conventional user, manager, and developer opposition. Employing unique strategies and tactics that identify many of the greatest but usually overlooked risks, such preemptive testing ensures the most crucial factor, incorporation/assembly, system, and UAT testing is conducted in the limited given time. Plus, by managing in the range of a general quality point of view that identifies more faults sooner when they are much easier to repair, and indeed inhibits many errors, testing can reduce the developers’ time, effort, and stress.

Software reliability testing training course prepares you with the most updated knowledge in testing domain allowing you to grow in your job and career, while helping your organization to make profit and excel.

Learn about

• Fundamentals of software testing
• Verification & validation methodology
• Various software testing techniques
• Test elements usage (rule/scenario/case)
• Software test management
• Different levels of software testing
• General testing principles
• Test planning
• Static analysis techniques
• Test design techniques
• Using a risk-based approach to testing
• Managing the testing process
• Managing a test team
• Combining tools and automation to support software testing
• Risk analysis methods
• Software reliability
• Software testing terminology
• Levels of software testing
• Software Testing techniques
• Black Box methods
• Web testing
• Software test planning & documentation
• Defect management
• Test reporting
• Automation of software testing activities

Audience

Software reliability testing training is a 4-day course designed for:

• Test Managers
• Test Leads
• Experienced testers
• Software design engineers
• Software developer
• Software reliability engineers

Training Objectives

Upon the completion of software reliability testing training course, the attendees are able to:

• Perform structured software testing model throughout the life cycle.
• Reduce time, effort, and stress for users, developers, and managers.
• Develop industry-accepted testing plans and designs to make testing simpler and more reliable.
• Apply several techniques to design comprehensive tests and explore dismissed conditions.
• Manage test performance, including evaluating/assigning resources and reporting flaws and status.
• Apply risk assessment and reusable tests to conduct more of the crucial testing in less time.
• Discuss the significance of corporate culture and the economics of test and failure
• Learn well-established test planning methods and techniques
• Learn how to generate a customized test plan or level-specific plans
• Articulate the issues that impact the test strategy
• Explore a realistic risk evaluation method to prioritize your tests
• Articulate methods for measuring the test efficiency of their corporation
• Generate a test summary report to efficiently suggest recommendations to stakeholders based on the knowledge obtained through the test effort

Course Outline

Overview

• History of software reliability
• Software reliability definition
• Software reliability terminology
• Sources of software failures
• Software life cycle
• Life cycle activities
• Life cycle models
• Fault, manpower and cost profiles over life cycle

Factors Affecting Software Reliability

• Application type
• Methodologies
• Product characteristics
• Testing/Verification
• Schedule
• Maintenance
• Operational profile

Software Reliability Models

• Types of software reliability models
• Terminology of modeling
• Assumptions of the models

Data Required for Models

• Types of data
• Required fault Data
• Data collection system
• Getting rid of bad data

Software Reliability Prediction Models

• Prediction models
• Rome laboratory TR-92-52
• Rome laboratory TR-92-15
• Musa’s execution time model
• Putnam’s model
• Historical data collection

Software Reliability Evaluation Models

• Objectives
• Types of estimation models
• Fault count
  • Exponential
  • Shooman model
  • Lloyd-Lipow model
  • Musa’s basic model
  • Musa’s logarithmic model
  • Goel-okumoto model
  • Historical data collection model
  • Weibull models
• Test coverage models
  • IEEE test coverage model
  • Leone’s test coverage model
  • Test success model
• Tagging models
  • Seeding
  • Dual test group model
• Bayesian models
• Thompson and Chelson’s model
• Goodness of fit

Software Reliability Metrics

• Objectives
• Metrics to use based on your process capability
• Metrics used in industry
• Misusing metrics

Software Fault Trees

• Why fault trees are used on software
• Applying fault trees to software
• Software fault tree analysis example

Software FMEAs

• Why FMEAs are used on software
• Applying FMEAs to software
• Example of software FMEA

System Reliability Software Redundancy

• Series structure
• Mission oriented
• Semi-Markov
• Parallel concurrent
• Voting redundancy

Improving Software Reliability

• Evaluating your own product and process
• Techniques for improving software reliability

Managing Software Reliability

• Matrix of responsibilities
• Cost benefit of improvement

How Testing Can Cut Effort & Time

• Testing for correctness vs. testing for errors
• Developer views of testing
• What is a process, why it’s important
• Real vs. presumed processes
• Why IT process improvement efforts fail
• Meaningful process measures, results, causes
• Defect injection, detection, ejection metrics
• Economics of quality problems in life cycle
• Keys to effective testing
• CAT-Scan approach to find more errors
• Dynamic, passive and active static testing
• Developer vs. independent test group testing
• V-model and objectives of each test level
• Reactive testing—out of time, but not tests
• Strategy—create fewer errors, catch more
• Test activities that save the developer’s time
• Applying improvements

How to Plan Effective Testing?

• Why test planning often is resisted
• Test plans as the set of test cases
• Six reasons to plan testing
• Risk elements, relation to testing
• Traditional reactive risk analysis, issues
• IEEE standard for test documentation
• Overcoming debatable interpretations
• Testing structure’s advantages
• Enabling manageability, reuse, selectivity
• Test plans, designs, cases, procedures

Master Testing Plan

• Identifying dismissed large risks
• Engaging key stakeholders
• Reviewing plans
• Formal and informal risk prioritization
• Dynamic identification of design defects
• Risk-based way to define test units
• Letting testing leads development
• Inhibiting major cause of overruns
• Stomach ache metric
• Testing greatest risks more and earlier
• Building chief test plan counterpart to project plan
• Strategy approach, use of automated tools
• Sequence of tests
• Data resources
• Entry/exit criteria
• Forecasting change
• Test environment
• Supporting testing materials
• Estimating testing
• Escaping traps
• Roles, responsibilities, staffing, training
• Schedule, risks and contingencies, sign-offs
• Management document
• Agreements
• Maintaining the living document

Detailed Test Planning

• IEEE standard on unit testing
• Requirements-based functional testing
• Non-functional requirements challenges
• Black Box testing strategy
• 3-level top-down test planning and design
• Detailed test plans for large risks
• Test designs for medium-sized risks
• Use cases, revealing overlooked conditions
• Detailed test plan technical document

White Box (Structural) Testing

• Structural (white box) degrees of coverage
• Flow-graphing logic paths
• Applying structural paths to business logic
• Exercise: Defining use case test coverage
• Flaws of conventional use-case testing
• Exercise: Additional use case conditions

Integration/System/Special Test Planning

• Risks, issues integration testing
• Graphical methods to simplify integrations
• Integration test plans inhibit schedule deviations
• Smoke tests
• Special tests
• Load, performance, stress testing
• Ongoing distant monitoring
• Reliability, security, configurations, compatibility
• Supply and installation
• Localization, maintainability, support, documentation
• Usability, laboratories raising the bar

Test Design: Both Verb And Noun

• Why do you need to actually design tests?
• Suitable application of investigative testing
• Checklists
• Data formats, data and process models
• Business principals, decision charts, and trees
• Equality classes and boundary values
• Formal, informal test design characteristics
• Exercise: Defining reusable test designs
• Complex conditions
• Defect isolation
• Test Cases for small risks
• Test case specifications vs. test data values

Maintenance and Regression Testing

• Maintenance vs. development
• Improve attention and knowledge
• Regression testing

Automated Testing Tools

• Main test automation issues
• Tools for a controlled environment
• Coverage analysis
• Test planning, design, administering
• Automated test execution tools, issues
• Scripting approaches, action words

Measuring and Managing Testing

• What is a test case survey?
• Relevance for estimating test-based tasks
• Traceability concepts and issues
• Evaluating non-test-based test project tasks
• Defect reports that prompt suitable action
• Identifying defect age
• Status reporting
• Defect density
• Defect detection/removal percentages

Software Reliability Testing Training Crash Course