{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,4]],"date-time":"2026-06-04T18:11:50Z","timestamp":1780596710868,"version":"3.54.1"},"reference-count":22,"publisher":"Sociedade Brasileira de Computa\u00e7\u00e3o","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"abstract":"<jats:p>Research Context: The Brazilian Unified Health System faces overload due to high demand for emergency services. Primary Health Care (PHC) plays a central role in mitigating this issue but suffers from the uneven distribution of human resources. Scientific and\/or Practical Problem: The lack of optimized strategies for professional allocation generates imbalances among PHC units, resulting in service deficits in some regions and underutilization in others. Proposed Solution and\/or Analysis: This study proposes a decision support system that uses open health data and mathematical optimization models to reallocate professionals across primary healthcare units. The system is formulated as an Integer Linear Programming (ILP) problem, aiming to maximize the minimum Service Capacity Margin (MCA), which reflects the balance between supply and demand. Related IS Theory: The research draws on Information Systems theories focused on decision support, such as Decision Support Systems (DSS) Theory, and mathematical modeling approaches in organizational contexts. Research Method: An ILP model (MAX-MCA) was developed to allocate professionals by category in Primary Health Care units. Demand was estimated from sociodemographic data, distributed using Voronoi diagrams, and adjusted based on actual service production from public records. Supply was calculated from the weekly working hours of professionals and average productivity standards defined by the respective professional councils. Summary of Results: Experiments were conducted in the municipalities of Ribeir\u00e3o Preto and Guarulhos. In both scenarios, the model eliminated deficits and increased MCA across all analyzed categories, demonstrating more balanced and efficient utilization of human resources. Contributions and Impact to IS area: This work illustrates how optimization models integrated with Information Systems can support decision-making, promoting greater equity and efficiency in resource allocation. The study contributes to advancing operational research applications in health management.<\/jats:p>","DOI":"10.5753\/sbsi.2026.248665","type":"proceedings-article","created":{"date-parts":[[2026,5,5]],"date-time":"2026-05-05T13:24:57Z","timestamp":1777987497000},"page":"890-909","source":"Crossref","is-referenced-by-count":0,"title":["A System for Workforce Sizing Optimization to Enhance Service Capacity in Primary Healthcare Units"],"prefix":"10.5753","author":[{"given":"Mateus","family":"Santos","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gabriela","family":"Ten\u00f3rio","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bruno J. S.","family":"Barros","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bruno","family":"Nogueira","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dimas Cassimiro","family":"Nascimento","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rian G. S.","family":"Pinheiro","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"3742","published-online":{"date-parts":[[2026,5,25]]},"reference":[{"key":"1","doi-asserted-by":"crossref","unstructured":"Aurenhammer, F. (1991). Voronoi diagrams\u2014a survey of a fundamental geometric data structure. ACM computing surveys (CSUR), 23(3):345\u2013405.","DOI":"10.1145\/116873.116880"},{"key":"2","doi-asserted-by":"crossref","unstructured":"Bourgeois III, L. J. (1981). On the measurement of organizational slack. Academy of Management review, 6(1):29\u201339.","DOI":"10.2307\/257138"},{"key":"3","unstructured":"Brasil (1990). Lei no 8.142, de 28 de dezembro de 1990. Di\u00e1rio Oficial da Uni\u00e3o: se\u00e7\u00e3o 1, Bras\u00edlia, DF, ano 128, n. 249, p. 25694, 31 dez. 1990. Disp\u00f5e sobre a participa\u00e7\u00e3o da comunidade na gest\u00e3o do Sistema \u00danico de Sa\u00fade (SUS) e sobre as transfer\u00eancias intergovernamentais de recursos financeiros na \u00e1rea da sa\u00fade."},{"key":"4","unstructured":"Brasil. Minist\u00e9rio da Sa\u00fade. (2018). A sa\u00fade bucal no sistema \u00fanico de sa\u00fade [recurso eletr\u00f4nico]. Bras\u00edlia: Minist\u00e9rio da Sa\u00fade. 350 p., il. Acessado em: 27 set. 2025. Dispon\u00edvel em: <a href=\"http:\/\/bvsms.saude.gov.br\/bvs\/publicacoes\/saude_bucal_sistema_unico_saude.pdf\"target=\"_blank\">[link]<\/a>."},{"key":"5","doi-asserted-by":"crossref","unstructured":"Campos, L. d. F. and Melo, M. R. A. d. C. (2007). The dimensioning of nursing staff according to nursing coordinators: concept, aim and use. Revista Latino-Americana de Enfermagem, 15(6):1099\u20131104.","DOI":"10.1590\/S0104-11692007000600007"},{"key":"6","unstructured":"Conselho Federal de Enfermagem (Brasil) (2015). Parecer ctas n\u00ba 14\/2015. Acessado em: 27 set. 2025."},{"key":"7","unstructured":"Conselho Federal de Medicina (Brasil) (2018). Parecer cfm n\u00ba 15\/2018. Acessado em: 27 set. 2025."},{"key":"8","unstructured":"Conselho Nacional de Secret\u00e1rios de Sa\u00fade (CONASS) (2019). Aten\u00e7\u00e3o prim\u00e1ria \u00e9 capaz de resolver 85% das demandas de sa\u00fade. Dispon\u00edvel em: <a href=\"https:\/\/www.conass.org.br\/atencao-primaria-e-capaz-de-resolver-85-das-demandas-de-saude\/\"target=\"_blank\">[link]<\/a>. Acesso em: 24 mar. 2025."},{"key":"9","doi-asserted-by":"crossref","unstructured":"Geremia, D. S. (2020). Aten\u00e7\u00e3o Prim\u00e1ria \u00e0 Sa\u00fade em alerta: desafios da continuidade do modelo assistencial. Physis: Revista de Sa\u00fade Coletiva, v. 30, p. e300100.","DOI":"10.1590\/s0103-73312020300100"},{"key":"10","unstructured":"Ghannam, L. (2022). Development of a Mathematical Model for Optimal Scheduling of Patients and Resource Management in Healthcare in Palestine during the Pandemic. PhD thesis, An-Najah National University."},{"key":"11","unstructured":"Instituto Brasileiro de Geografia e Estat\u00edstica (IBGE) (2022). Censo demogr\u00e1fico 2022. Acessado em: 30 mar. 2025."},{"key":"12","doi-asserted-by":"crossref","unstructured":"Lacasa, L., Challen, R., Brooks-Pollock, E., and Danon, L. (2020). A flexible method for optimising sharing of healthcare resources and demand in the context of the covid-19 pandemic. Plos one, 15(10):e0241027.","DOI":"10.1371\/journal.pone.0241027"},{"key":"13","unstructured":"Minist\u00e9rio da Sa\u00fade (Brasil) (2017). Portaria no 2.436, de 21 de setembro de 2017: Aprova a pol\u00edtica nacional de aten\u00e7\u00e3o b\u00e1sica, estabelecendo a revis\u00e3o de diretrizes para a organiza\u00e7\u00e3o da aten\u00e7\u00e3o b\u00e1sica, no \u00e2mbito do sistema \u00fanico de sa\u00fade (sus). Dispon\u00edvel em: <a href=\"https:\/\/bvsms.saude.gov.br\/bvs\/saudelegis\/gm\/2017\/prt2436_22_09_2017.html\"target=\"_blank\">[link]<\/a>. Acesso em: 24 mar. 2025."},{"key":"14","unstructured":"Minist\u00e9rio da Sa\u00fade (Brasil) (2024). Cadastro nacional de estabelecimentos de sa\u00fade (CNES). <a href=\"https:\/\/cnes.datasus.gov.br\/pages\/downloads\/arquivosBaseDados.jsp\"target=\"_blank\">[link]<\/a>."},{"key":"15","unstructured":"Minist\u00e9rio da Sa\u00fade (Brasil) (2025). Sisab - sistema de informa\u00e7\u00e3o em sa\u00fade para a aten\u00e7\u00e3o b\u00e1sica. Acessado em: 27 set. 2025."},{"key":"16","unstructured":"Minist\u00e9rio do Trabalho e Previd\u00eancia Social (MTPS) (2010). Classifica\u00e7\u00e3o Brasileira de Ocupa\u00e7\u00f5es, volume I, II, III. Secretaria de Pol\u00edticas P\u00fablicas e Emprego, Bras\u00edlia, Brasil, 3 edition. Acessado em: 20 jan. 2017."},{"key":"17","unstructured":"Minist\u00e9rio da Sa\u00fade (2025). Hist\u00f3rico da Cobertura da Aten\u00e7\u00e3o B\u00e1sica. Acesso em: 02 abr. 2025."},{"key":"18","doi-asserted-by":"crossref","unstructured":"Ordu, M., Demir, E., and Davari, S. (2021). A hybrid analytical model for an entire hospital resource optimisation. Soft Computing, 25:11673\u201311690.","DOI":"10.1007\/s00500-021-06072-x"},{"key":"19","unstructured":"Poulin, E. (2003). Benchmarking the hospital logistics process. CMA MANAGEMENT, 77:20\u201323."},{"key":"20","doi-asserted-by":"crossref","unstructured":"Taghavi, M., Johnston, G., Urquhart, R., Henderson, D., Tschupruk, C., and Tupala, B. (2021). Workforce planning for community-based palliative care specialist teams using operations research. 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