The CBMS Purok Boundary and Spot Map 2008 was an early mapping initiative aimed at delineating puroks within the barangays of Rosario and identifying key community landmarks. Developed as part of the Community-Based Monitoring System (CBMS), these maps featured essential locations such as churches, schools, commercial establishments, barangay halls, waiting sheds, and the road network, providing a foundational overview of local infrastructure.

However, since these maps were created without the benefit of Geographic Information System (GIS) technology, their accuracy was limited. They served primarily as a visual representation of barangay layouts rather than precise administrative boundary maps. Despite these constraints, the 2008 spot maps played a significant role in poverty assessment and local planning, helping policymakers track the effects of macroeconomic reforms and policy changes at the grassroots level. While later mapping efforts, such as the 2015 initiative, improved accuracy and detail, the CBMS 2008 maps remain an important historical tool for understanding community development trends.

The MBN-CBIS Barangay-Level Housing Unit Spot Map Database 2015 marked a major advancement in geospatial accuracy and data integration. Unlike earlier mapping efforts, this initiative leveraged GIS technology and geotagging, significantly enhancing the precision of housing unit locations within each barangay. Using Android phones, Community Volunteer Monitors (CVMs) systematically geotagged occupied housing units, ensuring accurate spatial representation.

This mapping effort was closely linked to the Minimum Basic Needs - Community-Based Information System (MBN-CBIS) Family Survey 2015, which served as the primary source of household data. Each family was assigned a unique Family Identification Number (FIDN), corresponding to their MBN-CBIS survey form, allowing for seamless integration of survey responses and geographic locations. This comprehensive spatial database not only improved data accuracy but also became a valuable resource for urban planning, infrastructure development, and resource allocation, supporting informed decision-making at the barangay level.