diff --git a/shared/core-services/src/footprint.service.js b/shared/core-services/src/footprint.service.js
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+++ b/shared/core-services/src/footprint.service.js
@@ -0,0 +1,41 @@
+import api from './adapter.js' 
+
+async function getCastEstimation(config) {
+    const { project, branch } = config
+    const nGd = api.getIssueCount()
+    const mLoc = api.getNumberOfLineOfCode({ project, branch })
+    const f = 0.004 / 100
+    const { nServer = 3 } = config
+    const { timeSharing = 1 } = config
+    const ts = timeSharing
+    const { eManufacturing = 320 } = config
+    const { lifetime = 4 } = config
+    const { energyDemand = 1670 } = config
+    const ed = energyDemand
+    const { carbonIntensity = 0.336 } = config
+    const ci = carbonIntensity
+    return (await nGd / await mLoc) * f * nServer * ts * ((eManufacturing / lifetime) + (ed * ci))
+}
+
+const FORMULA_COLLECTION = {
+    'cast-highlight': getCastEstimation
+};
+
+/**
+ * 
+ * @param {Object} config 
+ * @param {string} config.project Sonar project key
+ * @param {string} [config.branch] Sonar branch name
+ * @param {string} [config.formula] Formula type used to calculate the footprint (default: 'cast-highlight')
+ * @param {number} [config.nServer] Number of servers that the application utilizes to operate (default: 3)
+ * @param {number} [config.timeSharing] The Time Sharing or percent utilization of the server resource capacity (default: 1 for 100%)
+ * @param {number} [config.eManufacturing] The CO2eq Emissions during manufacturing of servers (default = 320 kgCO2eq for a DELL PowerEdge R640)
+ * @param {number} [config.lifetime] The expected "lifetime" of the servers in years (default: 4)
+ * @param {number} [config.energyDemand] The annual "Energy Demand" for each server (default: 1670 kWh/year for a DELL PowerEdge R640)
+ * @param {number} [config.carbonIntensity] The "Carbon Intensity" of the environment where the application is running (default: 0.336 kgCO2/kWh for North America)
+ * @returns 
+ */
+export function getFootprintEstimation(config) {
+    const { formula = 'cast-highlight' } = config
+    return FORMULA_COLLECTION[formula](config)
+}
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