## 5 Research Results
### Survey for Defining Clarity of Objectives
This \(p\)-value indicates the rejection of the null hypothesis providing statistically significant evidence that the proportion of projects adopting MACH architecture is higher than that of the next most popular architecture. Since a set of qualitative answers was required, it was decided to define questions addressing some important engineering challenges. A focus was on the following issues: Challenges in Architectural Design, Decision-Making Process, and Innovation in Design, Stakeholder Influence, Lessons Learned, Adaptability of Design, Documentation Practices, and Future Trends. A detailed list of questions for each topic and examples of answers is provided in Table 3.  
Qualitative analysis showed that some challenges in architectural design revolve around integrating with existing systems, maintaining security and coordinating existing processes. In the existing decision-making process, the main reason for adopting MACH architecture was easy and straightforward implementation of customer demands with a high level of cost-effectiveness. The implementation of this architecture showed that successful adoption requires gradual implementation and planning and, most importantly, continuous learning and training. MACH architecture is highly adaptable, allowing companies to respond quickly to changes in business needs, technology, and regulatory environments. All of this supports and shows that the defined learning objectives are up to date with state-of-the-art architectural designs. \begin{table}
\begin{tabular}{c c c} \hline \hline
**Architectural Pattern** & **Projects Rating Success as 4 or 5 (out of 5)** & **Percentage (\%)** \\ \hline MACH & 81 & 90\% \\ \hline Microservices & 48 & 80\% \\ \hline Monolithic & 15 & 50\% \\ \hline Layered architecture & 24 & 60\% \\ \hline Event-driven & 14 & 70\% \\ \hline Service-oriented architecture & 7 & 70\% \\ \hline Time Allocated to Architectural Design (More than 30\% of Project Time) & \\ \hline MACH & 40 & 44.4\% \\ \hline Microservices & 15 & 25\% \\ \hline Monolithic & 6 & 20\% \\ \hline Layered architecture & 10 & 25\% \\ \hline Event-driven & 9 & 45\% \\ \hline Service-oriented architecture & 4 & 40\% \\ \hline Tools and Technologies Used by MACH Projects & \\ \hline
**Tool/Technology** & **Number of MACH Projects Using It** & **Percentage (\%)** \\ \hline Cloud-native tools & 63 & 70\% \\ \hline API management platforms & 77 & 85\% \\ \hline Headless CMS & 50 & 56\% \\ \hline Microservices frameworks & 81 & 90\% \\ \hline \hline \end{tabular}
\end{table} 
Table 2: _Cont._  
\begin{table}
\begin{tabular}{p{113.8 pt} p{113.8 pt} p{113.8 pt} p{113.8 pt}} \hline
**Topic** & **Question** & **Key Themes** & **Example Answers** \\ \hline \multirow{8}{*}{ \begin{tabular}{} \end{tabular}  } & \multirow{8}{*}{ \begin{tabular}{} \end{tabular}  } & Integration and migration & \begin{tabular}{} \end{tabular}  \\  & & & \\ \cline{1-1}  & What are the most significant challenges you face during the architectural design phase of your projects? & \begin{tabular}{} \end{tabular}  & \ \begin{tabular}{} \end{tabular}  \\ \cline{1-1}  & & & \begin{tabular}{} \end{tabular}  \\ \cline{1-