TESTING-AS-A-SERVICE (TAAS) – CAPABILITIES AND FEATURES FOR REAL-TIME TESTING IN CLOUD

International Journal of Computer Science & Information Technology (IJCSIT) Vol 14, No 6, December 2022
DOI: 10.5121/ijcsit.2022.14603 31
TESTING-AS-A-SERVICE (TAAS) – CAPABILITIES
AND FEATURES FOR REAL-TIME
TESTING IN CLOUD
Pawankumar Sharma1
, Prasad Chetti2
, Lotfollah Najjar3
1
University of the Cumberlands, KY USA
2
Northwest Missouri State University, MO USA
3
University of Nebraska, Omaha, USA
ABSTRACT
Testing-as-a-service (TaaS) comes along with the advancement in technology to meet the various demands
in software testing currently on the rise as multiple organizations seek to enforce new technology and
personal software tailoring their organization needs. Information Technology (IT) has facilitated the rise
as various organizations upgrade their system, which demands the continuous testing of the software as
exemplified by the multiple types; regression testing and penetration testing (PTaaS). TaaS contains
various features and capabilities, enabling software testing presented by cutting-edge technology, external
expertise provision to companies, public cloud, test library, and community-driven and simplified
infrastructure and operations.
KEYWORDS
Testing as a service (TaaS), public cloud, regression testing, complete cycle testing, test library, algorithm
1. INTRODUCTION
Testing as a service (TaaS) entails an outsourcing model with the various organization-associated
business-testing activities undertaken by service providers rather than in-house employees. TaaS
may involve the engagement of multiple consultants to facilitate and advise employees with some
instances of outsourcing testing areas to the service provider. Some companies also undertake
some testing in-house [4]. This feature fits within the various specialized testing efforts with a
less extensive-requiring design or system knowledge. TaaS attracts different well-suited models,
exemplified by regression testing, performance testing, primary software testing, and cloud-based
application testing and monitoring. TaaS attracts unique features that define the various testing
types and capabilities to perform the services outlined below.
2. MECHANISMS
TaaS occurs upon the various organizations hiring third parties t undertake the different testing
procedures traditionally done in-house. The service entails purchasing multiple testing tools and
software alongside the infrastructure across the various service providers based on the pay-per-
use terms. The application of TaaS may entail the testing procedure exemplified by platform and
software combination and entire department outsourcing. Irrespective of the TaaS formation, the
provider assumes portions of organization testing responsibilities [10]. The organization may
employ TaaS in undertaking the various automated testing services that cost ample time
whenever manually launched within the in-house testing. In some scenarios, such as the lack of

32
resources for the undertaking o the service, such as customer organization, may necessitate
testing. TaaS needs to account for the various options that organizations demand extensive
knowledge for the company infrastructure.
Fig 1. Software development cycle [14].
The order of TaaS occurs in a stepwise action. For instance, the first step entails creating the
scenario and environment for testing in which software demands a user scenario. The testing
company conducts a test to evaluate the target company's response to the particular design
created. The vendor performs testing of the run within a secure test environment as they monitor
the performance and evaluate the company’s ability to achieve the set goals within the design
[10]. Depending on the various findings, the vendor and the company design the different modes
necessary for improving the system under testing for better performance and results in the future.
Fig 2. Software testing life-cycle [15].
3. ALGORITHMS
Cloud computing TaaS incorporate the hardware storage alongside the operating system residing
within the info center layer, while the virtual machine includes the cloud administrator and
automated systems. The cloud TaaS operation depends on asset scheduling, which helps address
the various probability problems of resources going offline or developing invalid execution and
delays [11]. Artificial intelligence (AI) has necessitated the development of deep learning and
algorithms exemplified by the max-min algorithm and deep learning.
The max-min algorithm application in cloud computing and grid-based computing algorithms
allows for the program scheduling as either standard or noteworthy tasks. The max-min
computation in task scheduling accommodates the various flexible cloud loads with the stipulated
algorithm securing work status for the approximate understanding of the virtual machine and the
implementation of the time enterprises [11]. The simulation, as applied, allows increased asset
use and decreased time for the specified tasks hence the algorithm satisfying the maximum and
completing continuous task scheduling.

33
The round-robin algorithm offers new algorithm scheduling, consolidating the above RR
algorithm and supporting task scheduling. RR scheduling algorithm engages the various
processors in using the dynamic time quantum, facilitating the creation of the forms for the
outstanding RR approach [11]. The weighted RR algorithm designates the asset function by
utilizing the RR style. Besides, the RR set to settling the various recurring tasks for the virtual
machine's deactivation, which identifies the various scheduling errors.
The genetic algorithm entails of self-adaptive heuristic algorithm simulating the natural
biological section and genetic evolution mechanism. The algorithm involves generational
development as inspired by evolution, with each generation evaluated by the fitness function
improvised in the algorithm iteration [18]. K subtasks randomly selected represent several
learners with checks on each integrity. The fitness function represents task transfer allocation
from objective optimization through single-objective optimization [18]. Besides, several solutions
represent different means within similar variances with little original difference. During the
software testing, poor operator selection eliminates higher fitness selection, with the selected
aspects evolving to the next generation through crossover and mutation operation.
The simulated annealing method represents a heuristic algorithm for the approximation location
to global optimization on a large scale. It incorporates heating and controlled cooling to
increment the material crystal size and reduce defects. It employs similar initiation to a genetic
algorithm with an initial solution performed by randomly generated candidate solutions with
learner arrays [18]. Each task integrity demands check with the inclusion of two loops; inner and
outer circle. The objective target function evaluates the various solutions to obtain fitness in the
genetic algorithm[18]. Within a candidate solution, it entails the random selection of two pairs
and the wapping of two positions to generate solutions. Rm evaluates the current and new solution
generation.
As embraced in the TaaS, deep learning entails incorporating the various concepts exemplified by
agents, environments, and rewards. The actions accrue from the agents and comprise the different
possible moves an agent can make [11]. The discount factor multiplied by the tip helps reduce the
accumulated rewards based on the agent's actions, with the various surrounding inputs replicating
the agent's current state and the corresponding action. The condition may comprise the immediate
configuration for the agent discovery and return from surroundings, although the reward consists
of the feedback generated from the measure of the agent's action [11]. The policy reflects the
strategy agent will follow in determining the next step within the current state. At the same time,
the value translates to the return on the existing long-term form under the policy.
4. MATHEMATICAL COMPUTATIONS
Relations constitute a fundamental aspect of the mathematical computations of software testing.
Association equates to the totals of the specific main element with the various partial calculation
of the other factors. As applied in software testing, relations bear directly to the software
properties tested, exemplified by the output-based functional testing except in exception handling
[19]. The equivalence and partition relations have interchangeable positions, shaping the
equivalence class partitioning as central functional testing. The probability computations also
apply to software testing in which the probability of any particular event translates to the finite
sample space of the likely outcomes, P (X) =|X|/ |Y|. These probability computations analyze the
likely results within the various set of likely occurrences in the future affecting the software
designs [20]. The multiple propositions (P) on the likely events translate to the proposition on
discourse universe (U). Hence, the truth set T for proposition p will translate to the proposal
dividing the discourse universe into T(p) and T(p). The computation will solve to T(p) U (T(p))’
= U [19]. The probability from the proposition will translate to |T(p)|/ |U|. The probability

34
application in the TaaS facilitates error detection and future disparities expected in the software
during software testing.
5. TYPES OF TAAS
Various types of TaaS apply to the different sections of the organization depending on the
particular part of the organization's lifecycle. The common types of TaaS include; cloud testing,
which entails testing the cloud services utilized by the specific company, including software-as-a-
service application (SaaS), and application testing for the various companies with ongoing
projects in the development of multiple applications. Regression testing facilitates testing of the
various software features, eliminating the drawbacks that might negatively affect the existing
element within the system [14].
Functional testing allows for the check on the product functionality and includes the various
types within the functionality, exemplified by the graphical user interface (GUI) and user
acceptance testing. In almost every organization, quality assurance (QA) testing exists to check
that the software meets the standard requirements before the actual release into the market [5].
The penetration testing (PTaaS) as employed in the Taas allow for the checks on the particular
company's security fortitude as exposed to the various cyber threats by undertaking various mock
attacks on the system. Infrastructure-as-a-service entails the different building blocks of cloud
services available through cloud hosting.
6. FEATURES
TaaS application has settled within various companies, demonstrating the inadequacy of the
expertise, technological resources, and financial mechanisms for the accessibility of quality
services as witnessed in the different huge companies. Some of the unique qualities demonstrated
by the TaaS account for the following.
6.1. Cutting-Edge Technology
TaaS employs an extensive technology feature whose potential applications allow for unique and
pre-determined test cases. The application of the technology allows for the transformation of the
service delivery within the applied company by breaking the various barriers to the technology
with ultimate improved efficiency and building connectivity alongside reliability. TaaS equips
the organization with multiple systems that approve of the system's sustainability with the
delivered services within the particular organization [9]. Therefore, TaaS enables the integration
of software development alongside unique customization on leveraged technology for the
organization to achieve its full potential.
Fig 3. TaaS features [13]

35
6.2. Public Cloud
Public cloud features incorporated within TaaS entail the third-party management platform with
the respective use of standard cloud computing models for the accessibility of resources and
services to various remote users worldwide. The incorporation of TaaS in public resources has
therefore included the conventional IT infrastructure elements across the platform, as exemplified
by the virtual machines, applications, and storage. The services within the public cloud
workloads include databases, firewalls, and data management tools alongside the platform-as-a-
service (PaaS) [12]. The public cloud services incorporated into the TaaS have utility computing
with various computing capabilities delivered on demand to multiple users, as exemplified by
water, gas, and telecommunications [3]. The public cloud providers necessitate the diverse
infrastructure for the deployment of tools and services such as data storage and monitoring; hence
TaaS facilitate the pooling o data center resources for testing multiple cases using the shared
hardware.
6.3. Flexible Design
TaaS provides flexible design to the esteemed customers necessary for the build-up and testing of
the various business system. The flexibility o the TaaS services depends on the subscribed
business's demand, as do the different product and service pricing. Some companies have utilized
TaaS to satisfy various needs instead of hiring and funding various separate teams [1].
Organizations with such services, as exemplified by large corporations, can alter the service
system across multiple platforms.
7. COMPLETE CYCLE TESTING
The application of the TaaS in the company allows for rigorous and extensive software testing
defined by all the software processes: planning, implementation, and evaluation. The planning
stage entails the testing o the various outlines during the construction or system-built before
proceeding with the actual implementation stage of the system. Evaluation checks for the
processes followed during planning per the outlined goals and implementation [7]. The
evaluation stage incorporates the various diagnostic tools, which include testing the multiple
bottlenecks that might object to the system operation in real time. The evaluation also facilitates
numerous suggestions for the effective management of the various systems effectively.
7.1. Thriving Community
TaaS has fostered a growing community across the various vendors and new system testing cases.
As technology advances, programmers and various organizations have developed multiple
systems per the different demands of the respective business. The new techniques and vendors
have thus necessitated the generation of new vendors and system tests for the increasing demands
[19]. Some systems have undergone upgrading hence the demand for more sophisticated and
developed techniques to cater to the need of the new market. Besides, the new systems demand
accurate system testing alongside the provision of utility for the respective system.
7.2. Expert Guidance
The availability and the provision of the TaaS require skilled and up-to-date system testing
capabilities by the contracted company. The personnel must provide qualified personnel to
analyze the various system and conduct test cases and infrastructural management within
economic terms. Besides, the TaaS must offer quality services that meet the business needs

36
necessitated by the quality personnel employed in the testing [17, 18]. Hence, the TaaS provision
organizations demand an open-minded, qualified, and skilled staff provides the services.
7.3. Short Turnaround
TaaS facilitates faster retrieval of results considering the platform employed within the system.
Some of the TaaS has a relatively shorter mode of return of results compared to the various other
methods [5]. The platform and software check provide the developers and the testing agencies
with benefits as it allows for numerous system checks for the respective organization due to the
short time required for a particular statement [8, 19]. Besides, these multiple checks allow for
assessing and obtaining accurate results for the respective system.
7.4. External Expertise
TaaS can provide an organization with additional expertise in business operations. In some IT
organizations and various software development teams, there may exist a niche in the skills
exercised by each team member, hence experiencing challenges in the multiple activities
primarily related to software upgrades and testing [13, 20]. TaaS provides such organizations
with the quality assurance of the various developed software in the organization and ensure they
meet the internationally recognized standards alongside earmarking the errors noticed in the
system. TaaS also offers the contracted organization error-automated testing of the design of the
errors hence signifying the upgrading of the software [15]. Therefore, TaaS provides added
expertise to the organization as the employees within the particular organization might learn
some skills from the external personnel conducting the testing services.
7.5. Simplified Infrastructure
Setting up a testing infrastructure demands an extensive investment for the organization as the
organizations must invest in the essential critical infrastructure and hire highly skilled personnel
with expertise in testing and high maintenance fee despite various scenarios of inactivity within
the organization. TaaS cuts down the costs of such organizations, especially on hardware,
software licenses, and actual time for designing the various test codes [14-16]. Hiring an
organization with established TaaS offers a cost-effective strategy for performing the various
desired tests in TaaS. Therefore, TaaS provides a subscription model on which the TaaS remain
available on demand; hence any company can reach out for the services at any time as the
company has ready staff for undertaking such activity [15]. This mode saves time and cost as the
organization might have spent much time seeking a qualified individual to undertake such a task.
7.6. Community Driven
TaaS presents an upcoming trend in the market that the community has embraced due to
technological advancement. The model has incorporated various organizations and industries
using IT to drive the multiple functions of the industry. Organizations have included service
providers as their main organization activity in the community. Alongside the growth of such
sectors, the organizations have teamed up as one organization, which forms a community for
development as the vendor and user’s community for adding the new test cases [2]. The TaaS
community has teamed up to develop various testing cases matching the latest technology,
consequently improving the overall utility of the TaaS platform. Besides, the multiple
improvements seek to improve the service delivery of each organization's operations. For
instance, the quality assurance mentor has incorporated 56 automation tools, which allow the
provision of various services, as exemplified by user acceptance testing, user experience, and

37
blockchain testing alongside machine learning testing [2]. Testlio provides a broad range of
services, including regression testing, exploratory testing, and automated testing.
8. TEST LIBRARY
TaaS organizations have embedded various testing services into their operation to suit client
demands and the growing technology. As embraced, the high testing capability has resulted in the
creation of libraries, which supplement the various testing activities across multiple
organizations. Some organizations have formed significant test cases with configurable
parameters helpful in creating templates and allowing customization of the different testing
software as per the prevailing condition [2, 21]. The test library also contains various security
controls, which control the test assets accessible to the ultimate end users in multiple
organizations.
9. CONCLUSION
Ultimately, TaaS entails an outsourcing model that facilitates the various testing activities
associated with multiple organizational businesses. The service providers for the TaaS have
facilitated the engagement of consultants who have helped and advised numerous employees for
an outsourcing service provider. Some of the TaaS available services include; regression testing,
application testing, cloud-based application testing, and performance testing. TaaS contains
various features and capabilities, exemplified by the short turnaround due to the easy accessibility
of the test results and simplified infrastructure and operations, resulting in vendor and user
availability and community-driven Taas organizations. TaaS also approves of the various external
expertise for the different organizations with incompetent personnel alongside the accessibility of
the test library that guides the various testing services that meet the ultimate demands in the
market.
ACKNOWLEDGMENT
I need to thank my mentor, Dr. Azad Ali, from the University of the Cumberlands KY, and my co-authors
for guiding me and reviewing my work to complete this paper on time and with exact details.
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