Procurement Manual - Unrwa

or complex depending on the need. The specification forms part of the invitation tobid, request for proposal, or request for quotation.3. Three types of defining needs (or a combination of the three) can be included in thespecification:a. Functional specifications, defining what the goods are required to do.b. Performance specifications, defining what we want to achieve / what theoutputs will be.c. Technical specifications, defining the physical characteristics anddimensions of the goods.3.3.2.3.2 Terms of Reference (TOR)1. Terms of Reference (TOR) are mainly used for contracting of services. TOR shoulddefine the work required of a supplier to provide the solicited services.2. However, they can be used for goods and works when the requirement cannot bequantitatively defined. The TOR is often the supplier‟s first and main introduction tothe assignment.3. Clear and unambiguous TOR will encourage the supplier to prepare clear anddetailed proposals, more likely to lead to successfully-implemented projects andreducing the likelihood of disputes and claims.4. The TOR usually includes information about:a. Background for requesting the serviceb. Objective of the service and overall impactc. Expected output from the servicesd. Activities required to reach this outpute. Input required to perform activitiesf. Deliverablesg. Timing3.3.2.3.3 Statement of Works (SOW)1. Statement of Works (SOW) provides background and detailed information forconstruction works. It must provide all general information necessary in order to beable to bid for and execute the works on site, such as location, timeline for executionof the works, information to the extent that they are available about the constructionsite such as ground conditions and survey plans, technical requirements, etc.2. The SOW shall provide contract data that are to be included as an Appendix toLetter/Form of tender. Contract data must include but is not limited to Time forCompletion of Works, Delay Damages, Defects Notification Period, any AdjustmentsPROCUREMENT MANUAL 33/127 VERSION 2