Converting QA into AI and Mechanical Learning Engineers

Posted By :Sanjana Singh |28th March 2021



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In today's fast-paced digital economy, successful operations must speak of software. Using agile development is how it is done faster in the market, forcing businesses to be as footy as possible to maintain their leading market positions.


However, testing / QA in a fast-paced environment is one of the most common and vital challenges that affect many businesses. The larger they are, the more time it takes to examine them more firmly; hence automation is the only effective way to meet business objectives.

This is not a new problem, and Automatic testing is not a new solution either. However, with the increasing use of bots, artificial intelligence and learning equipment, we can perform mass testing tasks without compromising the quality of delivery.


Artificial Intelligence (AI) is transforming the digital age of technology. The world is looking forward to an expanded adoption of AI-enabled applications/systems that will increase significantly over the next few years. While we see improvements, the biggest challenge will be to explore systems based on Artificial Intelligence (AI) -Machine Learning (ML). This is due to the lack of any formal or standard text that will be accepted during the examination. 


The actions and responses of these systems vary over time, depending on the installation details and are therefore less predictable than traditional IT systems. Also, conventional testing techniques are based on fixed inputs that produce specific, consistent results. Therefore, test cases are no longer expected to pass 100% accuracy but are replaced by a set of metrics. These metrics are expected to meet certain acceptance standards to ensure effective delivery.


Considering the changing environment, tests such as individual unit tests and end-to-end performance tests, while important, are not sufficient to provide proof that the system is working as intended. Extensive live monitoring of system behaviour in real-time combined with automatic feedback is essential for long-term system reliability. The speed at which these systems need to be tested will be surprisingly faster than the current Agile / DevOps world based on ongoing testing.



AI Systems Performance Test


In the past, Artificial Intelligence (AI) research was primarily reserved for large technology companies and conceived as a technical concept that could mimic human intelligence. However, with rapid advances in data collection, operation and computing power, AI has become the new power of all businesses. As a result, the AI's market has expanded over the past few years with various industrial applications. 


Currently, AI systems have many potentials in the environment and work with complex input models, detecting suspicious or dangerous behaviour. This contrasts with the determination of traditional IT systems that use a rule-based approach and generally follow the "if X, then Y" model. Therefore, the testing of AI systems involves a fundamental transition from discharge compatibility to input validation to ensure their robustness.



Appropriate testing strategy


Given the fact that there are many failure points in an AI program, the testing strategy of any AI system should be carefully planned to minimise the risk of failure. 

First, an organisation must understand the various stages in the framework of AI, as shown. 


Here are four critical cases of AI use that should be checked to ensure proper AI System performance:

  • Exploring independent aspects of the mind such as the processing of natural language (NLP), speech recognition, image recognition, and visible character recognition (OCR)


  • Exploring AI platforms like IBM Watson, Infosys NIA, Azure Machine Study Studio, Microsoft Oxford, and Google DeepMind


  • Examining ML-based analysis models


  • Exploring AI-enabled solutions such as visual assistants and robotic process default (RPA)



QA AI - Physician delivery and forecasting


This method collects historical data from your SDLC Ecosystem and uses analytics, ML algorithms, and Cognitive strategies to suggest potential decision-making options. It is also used to predict the future quality of future releases based on historical data and current release information as a parameter.


AI for experimental design method focuses on performing test case automating tasks based on the ML & NLP (Natural language processing) algorithm.



To do AI QA, you need to test in production.


If you follow the above steps, you know that a well-verified, well-integrated system that uses representative training data and algorithms from a source already tested and proven should lead to the expected results. But what if you do not get those desired results? The truth is puzzling

Things happen in the real world that doesn't happen in your testing environment. However, we did all we had to do in the training phase, and our model exceeded the expectations of meeting, but it does not exceed the "consideration" phase where the model works. 


This means that we need to have a QA approach to deal with models in production.


The problems arising from the models in the imaging phase are probably always data problems or differences in the way the model was trained compared to the real-world data. We now know that the algorithm works. We know that our training model data and hyperparameters are organised to the best of our ability. That means that when models fail, we have different data or real-world problem. Is the input data bad? If the problem is incorrect data - fix it. Is the model not performing well? Are there any data differences that need to be added to further train the model? 


If the answer is final, that means we need to create an entirely new cycle of developing the AI model with the latest training details and hyperparameter adjustments to address the appropriate level of equity with that data. No matter what the issue, organisations that use AI models need a reliable way to maintain close tabs on how AI models work and version control what works.


This leads to the emergence of a new technology field called "ML ops", which does not focus on building or modelling models but manages them effectively. Instead, ML ops concentrate on modelling, management, security, rediscovery, and discovery. Everything happens after the models are trained and developed again while in production.

AI projects are very different because they revolve around data. Data is one of the tests that has proven to be continuous and evolving. As such, you need to process AI projects as they grow and develop continuously. This should give you a fresh perspective on QA in the context of AI.



Black Box and White Box test


ML test types include Black Box and White Box tests as much as traditional test methods. Obtaining training data sets large and complete enough to meet 'ML testing' requirements is a significant challenge.

During the model development phase, data scientists evaluate the model's performance by comparing model outcomes (predicted values) with actual values.


Some of the techniques used to perform Black Box tests on ML models are:


  • Model performance testing: Includes testing with new test data/data sets and comparing model performance according to parameters such as precise recall, F-score, matrix of confusion (False and True, False False and True) in those pre-determined to the accurate model already developed and distributed in production.


  • Metamorphic test: This tries to reduce the problem of the Oracle test. The test Oracle is a way for the tester to determine if the system is responding correctly. It occurs when it is difficult to obtain the expected results of selected test cases or determine whether the output itself depends on the desired results.


  • Two Coding Combinations / Algorithm: Many models use different algorithms built into, and guesses from each of them are compared, given the same input data. By creating a standard model for dealing with segmentation problems, we can use various algorithms like Random Forest or Neural Network such as LSTM. Still, a model that produces the most expected results is ultimately chosen as the default model.


  • Paid Direction Interference: Data embedded in ML models is designed to test all feature performance. For example, with a model built into neural networks, testers need sets of experimental data that can lead to the functioning of each neuron/node in a neural network.



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Benefits of using QA-assisted AI technology


There are tangible and tangible benefits of using both solutions. Depending on customer value, risk desire and the idea of aligning software delivery with DevOps and AI platform can be used depending on the organisation's needs.


First, AI QA Prescription & Prediction can be developed as a platform and can offer the following benefits:

  • Improved service delivery and link building on SDLC components from requirements to production report


  • Fastest marketing time - Reduce the test effort by up to 50% and the creative test effort by 30%


  • Prediction and power planning


  • Check management and identify process gaps.


  • Track business and their performance KPIs.


  • With the 2nd technology, AI, for experimental cases, the following benefits can be applied.


  • Independent self-testing tests in real-time can be combined with CI / CD, the DevOps release train.


  • The broken test is identified and repaired due to application changes, no more extended test maintenance.


  • AI to reduce maintenance efforts and improve productivity


  • As these vendor tools come with license costs, ROI can be calculated based on application usage, reduction of test performance, testing performance and maintenance efforts and can vary from application to application.





Major service providers have begun to incorporate AI & ML-enabled solutions into their testing offerings; the bad news is that most of them only provide for a specific need and do not cover the entire range of the test cycle. 

The most effective solution will cover the entire end-to-end process.

Businesses striving to improve software quality, release software quickly and expand their operations are beginning to take automation testing seriously. In addition, for those businesses whose goal is to change themselves numerically, automated testing is a practice that supports all efforts in this regard. In these companies, BOTs, Artificial Intelligence and Learning Equipment are increasingly driving advanced results in three areas: competence, quality, and efficiency.


About Author

Sanjana Singh

Sanjana is a QA Engineer with skills in Manual Testing and always eager to learn new technologies.

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