pars extens point syntax locat locat field extens point updat appropri param ep extens point concern param text text pars pars extens point fig object ep text don us extens point defin usecasediagram lp usecasediagram granular type statement ep object us model facad us ep us pars creat extens point object ep pars extens point text got interpret mean delet refer extens point us set field extens point valu ep ep project manag manag current project trash ep model core helper set ep model facad ep model us case helper set locat ep model facad locat ep todo need work simpli extens point awai endif 