DESIGN & TEST user testing, software functional testing, software testing

DSView is a versatile signal ca

pture and analysis software with multiple functions. Its main features

include digital logic signal capture and measurement, digital protocol analysis and debugging, real time

display and measurement of analog signals, and signal spectrum analysis, among o thers.

DSView

is also an open source software based on sigrok project www.sigrok.org ), developed and

maintained by DreamSourceLab www.dreamsourcelab.com ). C urrent v ersion (v 1 3 0 support three

ope ration mod es: Logic Analyzer, Oscilloscope and Data Acquisition.

Currently, DSView supports the following hardware:

 DSLogic series logic analyzer

 DSLogic Plus / U3Pro16 / U3Pro32

 DSCope series oscilloscope

 DSCope U2P20 / U2B100 / U3P100

1) Creating a new project

a. Define the project scope.

i. Requirements

1. The work that needs to be done to produce the product.

2. The features and functions that describe the product.

3. Use case

b. Planning

i. Resource projections.

1. Personnel

2. Equipment

3. space requirements

4. Hardware

5. Development tools

2) Documentation

a. Customer Requirements Doc.

b. System Specifications Doc.

i. Hardware Platform

ii. Software Development environment

iii. Customer approval

c. Design Doc.

i. Software modules and task layout.

ii. Developer testing

iii. Modular test plans if needed

iv. Detailed Integrated test Plan

3) Development

a. Do the work

i. Build hardware

ii. Write modules

iii. Perform module testing to the requirements.

4) Integration

a. Put it all together

5) System Testing

a. Run test plan and get signed

The bug life cycle, also known as the defect life cycle, outlines the stages that a software bug goes through from discovery to resolution. The bug life cycle helps in systematically managing and tracking the progress of fixing software defects. While specific terminologies and the number of stages may vary across organizations, the following is a typical representation of the bug life cycle:

1. New: This is the initial stage where the bug is identified by a tester or another team member. The bug is logged into a bug tracking system with relevant details such as a description, steps to reproduce, and the environment in which it was found.
2. Assigned: The bug is assigned to the development team or a specific developer. This step may involve prioritization based on the severity and impact of the bug.
3. Open: The developer begins to investigate and fix the reported bug. During this stage, the bug is marked as "open."
4. Fixed: Once the developer has implemented a solution for the bug, the status is changed to "fixed." The bug fix is then verified by the developer to ensure that it indeed resolves the issue.
5. Verified: The testing team or quality assurance (QA) team tests the fixed code to confirm that the bug has been successfully resolved. If the bug is not fixed or if new issues are discovered, the cycle may go back to the "Open" or "Assigned" stage.
6. Reopened: If the testing team finds that the bug persists or if new issues are discovered, the bug is reopened, and it goes back to the "Open" or "Assigned" stage for further investigation and resolution.
7. Closed: Once the bug is successfully fixed and verified, and there are no further issues, it is marked as "closed." At this point, the bug is considered resolved, and the life cycle ends for that particular bug.

It's important to note that the bug life cycle is an integral part of the software development and testing process. Effective bug tracking and management help ensure the delivery of a high-quality software product by identifying, addressing, and resolving defects in a systematic manner. The bug life cycle can be customized to fit the specific workflows and processes followed by different development teams and organizations.

Unit testing is the first level of testing and is often performed by the developers themselves. It is the process of ensuring individual components of a piece of software at the code level are functional and work as they were designed to. Developers in a test-driven environment will typically write and run the tests prior to the software or feature being passed over to the test team. Unit testing can be conducted manually, but automating the process will speed up delivery cycles and expand test coverage. Unit testing will also make debugging easier because finding issues earlier means they take less time to fix than if they were discovered later in the testing process. TestLeft is a tool that allows advanced testers and developers to shift left with the fastest test automation tool embedded in any IDE.

After each unit is thoroughly tested, it is integrated with other units to create modules or components that are designed to perform specific tasks or activities. These are then tested as group through integration testing to ensure whole segments of an application behave as expected (i.e, the interactions between units are seamless). These tests are often framed by user scenarios, such as logging into an application or opening files. Integrated tests can be conducted by either developers or independent testers and are usually comprised of a combination of automated functional and manual tests.

System testing is a black box testing method used to evaluate the completed and integrated system, as a whole, to ensure it meets specified requirements. The functionality of the software is tested from end-to-end and is typically conducted by a separate testing team than the development team before the product is pushed into production.

Acceptance testing is the last phase of functional testing and is used to assess whether or not the final piece of software is ready for delivery. It involves ensuring that the product is in compliance with all of the original business criteria and that it meets the end user’s needs. This requires the product be tested both internally and externally, meaning you’ll need to get it into the hands of your end users for beta testing along with those of your QA team. Beta testing is key to getting real feedback from potential customers and can address any final usability concerns.

Performance testing is a non-functional testing technique used to determine how an application will behave under various conditions. The goal is to test its responsiveness and stability in real user situations. Performance testing can be broken down into four types:

· Load testing is the process of putting increasing amounts of simulated demand on your software, application, or website to verify whether or not it can handle what it’s designed to handle.

· Stress testing takes this a step further and is used to gauge how your software will respond at or beyond its peak load. The goal of stress testing is to overload the application on purpose until it breaks by applying both realistic and unrealistic load scenarios. With stress testing, you’ll be able to find the failure point of your piece of software.

· Endurance testing, also known as soak testing, is used to analyze the behavior of an application under a specific amount of simulated load over longer amounts of time. The goal is to understand how your system will behave under sustained use, making it a longer process than load or stress testing (which are designed to end after a few hours). A critical piece of endurance testing is that it helps uncover memory leaks.

· Spike testing is a type of load test used to determine how your software will respond to substantially larger bursts of concurrent user or system activity over varying amounts of time. Ideally, this will help you understand what will happen when the load is suddenly and drastically increased.

With the rise of cloud-based testing platforms and cyber attacks, there is a growing concern and need for the security of data being used and stored in software. Security testing is a non-functional software testing technique used to determine if the information and data in a system is protected. The goal is to purposefully find loopholes and security risks in the system that could result in unauthorized access to or the loss of information by probing the application for weaknesses. There are multiple types of this testing method, each of which aimed at verifying six basic principles of security:

· Integrity

· Confidentiality

· Authentication

· Authorization

· Availability

· Non-repudiation

Usability testing is a testing method that measures an application’s ease-of-use from the end-user perspective and is often performed during the system or acceptance testing stages. The goal is to determine whether or not the visible design and aesthetics of an application meet the intended workflow for various processes, such as logging into an application. Usability testing is a great way for teams to review separate functions, or the system as a whole, is intuitive to use.

Compatibility testing is used to gauge how an application or piece of software will work in different environments. It is used to check that your product is compatible with multiple operating systems, platforms, browsers, or resolution configurations. The goal is to ensure that your software’s functionality is consistently supported across any environment you expect your end users to be using.