Negative Total Float typically means that the Project is not\nmeeting completion requirements (usually represented by a Constraint) and\ntherefore efforts must be initiated in order to recover from the realized\nimpacts.<\/p>\n\n\n\n
However, Negative Total Float can occur even if the Project has no constraints whatsoever. In the illustration above, the Data Date is Monday, June 6 and Task C is assigned to a 7 Day Calendar with an Original Duration of 3 Days. Finish Milestone D is assigned to a 5 Day Calendar. Therefore, the Early Finish for \u201cC\u201d is Saturday, June 11. Since \u201cD\u201d is assigned to a 5 Day Calendar, it cannot end on Saturday, therefore, P6 calculates the Early Start as Monday, June 13 at 08:00 AM.<\/p>\n\n\n\n
On the Backward Pass, the Late Finish for \u201cD\u201d and \u201cC\u201d are calculated as Friday, June 10 at 05:00 PM but that is 1 Day earlier than the Early Finish for \u201cC\u201d. Therefore the calculated Total Float for \u201cC\u201d is -1. The Backward Pass propagates that result back through the CPM network to \u201cA\u201d.<\/p>\n\n\n\n
In a CPM network with many activities, and multiple\ncalendars, it\u2019s possible that this effect could accumulate resulting in \u201cFalse\nNegative\u201d Total Float values.<\/p>\n\n\n\n
The solution in this illustration is to reassign \u201cD\u201d to the 7 Day Calendar. Then recalculate the schedule.<\/p>\n\n\n\n
Copyright \u00a92019 FoxQuest Systems, Inc. – All Rights Reserved.<\/p>\n","protected":false},"excerpt":{"rendered":"
Negative Total Float typically means that the Project is not meeting completion requirements (usually represented by a Constraint) and therefore efforts must be initiated in order to recover from the realized impacts. However, Negative Total Float can occur even if the Project has no constraints whatsoever. In the illustration above, the Data Date is Monday, … Continue reading “How to end up with Negative Float without any constraints”<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":1077,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","om_disable_all_campaigns":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[12],"tags":[],"class_list":["post-1076","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tips"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.foxquestsystems.net\/foxblog\/wp-content\/uploads\/2019\/08\/How-to-generate-negative-float-without-any-constraints-ok.jpg?fit=1065%2C124&ssl=1","_links":{"self":[{"href":"https:\/\/www.foxquestsystems.net\/foxblog\/wp-json\/wp\/v2\/posts\/1076","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.foxquestsystems.net\/foxblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.foxquestsystems.net\/foxblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.foxquestsystems.net\/foxblog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.foxquestsystems.net\/foxblog\/wp-json\/wp\/v2\/comments?post=1076"}],"version-history":[{"count":3,"href":"https:\/\/www.foxquestsystems.net\/foxblog\/wp-json\/wp\/v2\/posts\/1076\/revisions"}],"predecessor-version":[{"id":2108,"href":"https:\/\/www.foxquestsystems.net\/foxblog\/wp-json\/wp\/v2\/posts\/1076\/revisions\/2108"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.foxquestsystems.net\/foxblog\/wp-json\/wp\/v2\/media\/1077"}],"wp:attachment":[{"href":"https:\/\/www.foxquestsystems.net\/foxblog\/wp-json\/wp\/v2\/media?parent=1076"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.foxquestsystems.net\/foxblog\/wp-json\/wp\/v2\/categories?post=1076"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.foxquestsystems.net\/foxblog\/wp-json\/wp\/v2\/tags?post=1076"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}