| dc.description.abstract | DevOps (Development and Operations team) is a foundational approach in the recent software
engineering scene, integrating it to improve collaboration, automation, and continuous delivery. Its
adoption varies across countries with different organizational cultures, resources, and technological
infrastructures. In Bangladesh, where the software industry is expanding rapidly along with new
technologies, DevOps integration plays a key role. However, there is limited empirical research
examining DevOps' role in the Software Development Lifecycle (SDLC). This study addresses this gap
by conducting a unified, multi-dimensional investigation across three domains: Critical Success
Factors (CSFs), DevOps Capability Maturity (CMMI), and Security integration within DevOps practices
(DevSecOps). Data were collected from around 79 professionals, using structured questionnaires
derived from global frameworks and models. CSF analysis used a Multiple Linear Regression (MLR)
statistical model to quantify the relative association of 19 CSFs with perceived project success,
revealing from the exploratory sample that automation-related practices and intra-organizational
collaboration showed the largest estimated effect sizes. The maturity assessment used reliability
analysis, correlation analysis, and K-means (K = 3) clustering, showing variation across CMMI
capabilities: Monitoring and Continuous Development showed higher maturity. Security integration
was evaluated using non-parametric methods, including Spearman Rank Correlation, permutation
tests, and FDR correction, which demonstrated that security is most effectively integrated at build and
pipeline stages. These emphasize the interrelationship between automation, culture, maturity, and
security as determinants of DevOps effectiveness in Bangladesh. The study proposes a refined CSF
model, a maturity model, and security practices evaluation. The models are tailored according to
Bangladesh’s software firm needs. | en_US |
