With　the　growing　economic　pressure,　one　lever　for　companies　to　be　competitive　is　to　efficiently　monitor　projects.　To　this　goal,　the　different　processes　involved　in　the　project　must　be　carefully　supervised　and　the　project　manager　needs　to　be　well-informed　on　their　state　and　progress　to　take　the　best　decisions　thanks　to　accurate　performances　of　indicators,　process,　and　project.　Another　key　factor　of　successful　decision-making　in　engineering　projects　beyond　taking　into　account　information　from　the　project　manager　on　the　project　management　(PM)　is　to　consider　information　from　the　systems　engineer　on　the　product　development.　This　paper　proposes　a　process　to　monitor　engineering　projects　relying　on　a　set　of　project　performance　indicators　that　integrate　the　views　of　both　project　manager　and　systems　engineer.　This　process　includes　three　main　activities:　1)　defining　project　performance　indicators　related　to　the　processes　described　by　international　guides　and　standards;　2)　valuating　and　weighting　these　indicators　by　consulting　project　managers　and　systems　engineers;　and　3)　constructing　a　hierarchical　framework　of　indexes　to　support　project　monitoring.　This　proposal　thus　refers　to　the　practices　described　in　PM　and　systems　engineering　norms　and　improves　them　by　involving　project　managers　and　systems　engineers　into　decision-making,　with　the　goal　to　take　more　coherent　decisions.