authority System and Application Technical Landscape, on the basis of specifications provided  by the contracting authority. Details of work to be carried out will form part of the specific  contract. Work shall be provided on site in Lisbon unless otherwise specified.  Page 33 of 40  IV.7.3.  Quoted Time-and-Means Contracts  IV.7.2.  Time-and-means Contracts  IV.7.3.1.  The “Quoted Time & Means” method may be used for service providers outside the  contracting authority premises.  IV.7.3.2.  For Quoted Time & Means projects, the work will be ordered for a total number of days  and will be divided into various sub-tasks (or "quoted time & means").  IV.7.3.3.   The contracting authority will provide the contractor with a detailed description of each sub- task. The contractor will then send the contracting authority an estimate of the number of days  needed to carry out the sub-task and the expected  Delivery date .  IV.7.3.4.  Once the estimate has been accepted by the contracting authority, only the number of days  indicated in the estimate will be chargeable.  IV.7.3.5.  The invoicing, approved by t h e c o n t r a c t i n g a u t h o r i t y , will be carried out on the  basis of each sub-task accepted and signed for by the contracting authority using a specific  form.  IV.7.2.3.  Every day during which Services are provided, the contractor or its staff shall record the time  worked. The records shall be set up in the manner defined by the contracting authority’s technical  representative named in the specific contract. At the end of each month, the contractor or its staff  shall complete and sign the attendance sheet proposed by the contracting authority and forward  it to the contracting authority’s technical representative who shall be in charge of checking the  consistency between the daily records and the monthly attendance sheet.  IV.7.2.2.  At the request of the contracting authority, the contractor shall supply all the necessary personal  information regarding the staff providing the service.  IV.7.2.1.  Informatics Services  shall be provided on a time-and-means basis when the Parties agree  in the specific contract that a specified daily sum is to be paid for a given number of  days in return for the provision of the means to perform the  Informatics Services . In all  cases, the specific contract shall state the purpose of the provision of the  Services ; this may  involve an obligation for the contractor to achieve a specific result.  IV.7.1.9.  Logistics  Logistics includes but is not limited to, inventory, counting, equipment tagging, security labelling,  just-in-time delivery, unpacking and installation in end-user’s office.  IV.7.1.8.  Removals  Removals consist of transferring any  Products  from one specified place to the other, whether  or not within the same building or city; they can take place during  Normal  or  Extended working  hours . 