# Reviewing Automated Analysis of Feature Model Solutions for the Product Configuration
## 4 Results
* Sub-question 1: We classify the obtained papers regarding their main focus in the next classes: (i) Non-Consistent Feature Model (NC FM); (ii) Non-Consistent Configuration (NC Conf); (iii) Non-Consistent Feature Model and Configuration (NC FM/Conf); (iv) Mutation or Evolution of Feature Model (Mut/Evol); and (v) Specific Fault (Spec Fault) such as void FM, empty FM, dead feature, false optional, partial dependencies, and orphan features). The higher number of works focus on the conflict detection on specific FM inconsistencies. Figure 4 depicts a summary of the obtained papers for the conflict detection in FMs. * Sub-question 2: Almost all the articles present new solution proposals for conflict detection in FM. * Sub-question 3: Table 5 resumes the following results for articles that focused on conflict detection only:  
Figure 4: Summary of reviewed papers for the conflict detection in FMs from 2010 to August of August of 2019. \begin{table}
\begin{tabular}{c c c c c c c c c c c c} \hline \hline  & & **\(\mathbf{\mathrm{ROI}}\)** & **\(\mathbf{\mathrm{ROI}}\)** & **\(\mathbf{\mathrm{ROI}}\)** & **\(\mathbf{\mathrm{ROI}}\)** & **\(\mathbf{\mathrm{ROI}}\)** & **\(\mathbf{\mathrm{ROI}}\)** & **\(\mathbf{\mathrm{ROI}}\)** & **\(\mathbf{\mathrm{ROI}}\)** & **\(\mathbf{\mathrm{ROI}}\)** \\ \hline \multirow{4}{*}{IC-1} & Tools & 4 & 3 & 2 & 0 & 3 & 2 & 2 & 0 & 0 & 1 \\ \cline{2-11}  & Tools \& Solvers & 3 & 2 & 0 & 2 & 4 & 3 & 4 & 2 & 1 & 1 \\ \cline{2-11}  & \multirow{2}{*}{IC-2} & \# Papers & 7 & 5 & 2 & 2 & 7 & 5 & 6 & 2 & 1 & 2 \\ \cline{3-11}  & & Tools & 0 & 0 & 1 & 0 & 0 & 0 & 0 & 0 & 0 & 0 \\ \cline{2-11}  & \multirow{2}{*}{IC-2} & Tools \& Solvers & 0 & 1 & 2 & 1 & 0 & 1 & 1 & 0 & 1 & 0 \\ \cline{2-11}  & \multirow{2}{*}{IC-1} & \# Papers & 0 & 1 & 3 & 1 & 0 & 1 & 1 & 0 & 1 & 0 \\ \cline{2-11}  & \multirow{2}{*}{IC-1} & Tools & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 \\ \cline{2-11}  & \multirow{2}{*}{IC-1} & Tools \& Solvers & 2 & 0 & 0 & 0 & 0 & 0 & 0 & 1 & 1 & 0 \\ \cline{2-11}  & \multirow{2}{*}{\# Papers} & Tools & 4 & 3 & 3 & 0 & 3 & 2 & 2 & 0 & 0 & 1 \\ \cline{2-11}  & & Tools \& Solvers & 5 & 3 & 2 & 3 & 4 & 4 & 5 & 3 & 3 & 1 \\ \hline \hline \end{tabular}
\end{table} 
Table 5: Filtered articles classified by year and way for reaching their main goal. * Seven articles in 2010: four articles using tools, and three articles using tools and solvers. * Five articles in 2011: three articles using tools, and two articles using both tools and solvers. * Two articles in 2012: both articles using tools. * Two articles in 2013: both articles using tools and solvers. * Seven articles in 2014: three articles using tools, and four articles using tools and solvers. * Five articles in 2015: two articles using tools, and three articles using tools and solvers. * Six articles in 2016: two articles using tools, and four articles using tools and solvers. * Two articles in 2017 using tools and solvers. * One article in 2018 using tools and solvers. * Two articles in 2019: 1 article using tools, and 1 article using tools and solvers. * Sub-question 4: Only six articles present results on the conflict detection of large-scale FMs. * Sub-question 5: All the reviewed solutions present new or similar performance results concerning their base solutions; that is, those works that are based in previous works are applied to new data sets, and their results preserve their base ones.