As such they should form part of the risk-mitigationstrategy for any sizeable rollout activity. All Rights Reserved. This approach provides additional time to fully test the system prior to each go-live to ensure that the new solution meets the business needs. By continuing you agree to our use of cookies. Phased. For example, a major release could see a software moving from version 2.4 to 3.1, while a minor release could be from 2.2.1 to 2.2.2. Essentially, the first modules to be implemented may not function optimally without critical information from modules yet to be implemented. Pilot implementation. Planning . (e in b.c))if(0>=c.offsetWidth&&0>=c.offsetHeight)a=!1;else{d=c.getBoundingClientRect();var f=document.body;a=d.top+("pageYOffset"in window?window.pageYOffset:(document.documentElement||f.parentNode||f).scrollTop);d=d.left+("pageXOffset"in window?window.pageXOffset:(document.documentElement||f.parentNode||f).scrollLeft);f=a.toString()+","+d;b.b.hasOwnProperty(f)?a=!1:(b.b[f]=!0,a=a<=b.g.height&&d<=b.g.width)}a&&(b.a.push(e),b.c[e]=!0)}y.prototype.checkImageForCriticality=function(b){b.getBoundingClientRect&&z(this,b)};u("pagespeed.CriticalImages.checkImageForCriticality",function(b){x.checkImageForCriticality(b)});u("pagespeed.CriticalImages.checkCriticalImages",function(){A(x)});function A(b){b.b={};for(var c=["IMG","INPUT"],a=[],d=0;d