<aura:attribute name="obj" type="sobject"  default="{sobjectType : 'Account'}"/>
    <aura:attribute name="selFields" type="String[]"/>


 <aura:iteration items="{!v.selFields}" var="fld">
 <thead>
 <tr class="slds-text-title_caps">
   <th scope="col">
  <ui:outputText value="{!fld}" />
   <ui:inputText value="{!v.obj +'.'+ fld}" />-->
    <ui:inputText aura:id="fldVal" value="{!v.obj.name}" keyup="{!c.getData}" />
               {!v.obj.fld}
  </th>
   </tr>