# Weighted network evaluation in procurement

Weighted network evaluation in procurement is a sophisticated technique where different suppliers are assessed against multiple, interrelated criteria, with each criterion assigned a weight reflecting its relative importance to the overall objective, such as finding the [most economically advantageous tender](https://www.google.com/search?sca_esv=6bae24b5c791315b\&rlz=1C5CHFA_enSG951SG953\&cs=0\&sxsrf=AE3TifMCEpChK_JZIkoFYJkpIGrSZkZQjQ%3A1756735834585\&q=most+economically+advantageous+tender\&sa=X\&ved=2ahUKEwiNrvL63rePAxXYzjgGHasBIsoQxccNegQIBBAC\&mstk=AUtExfCTRWqnty-Z9JADhKI885E-pw91vgoSL65OuYRWUq9tKO_vPN7NrQJ6Q7GQoLDbFUIF8a-aVggsfwfRzbt3U2jle_OPWR1KhGy9q-pzBaF3Cdy3HG0fgB10jXZexLH9HoJEGRwdxzvSTUZhkioD2YroQu_8sD8LwfxpP86-MiLGYoJxhvj5ic2_yGUsltSMYwzJIBD_k38O_lQDyH_NcsbIFVP4fRwHL95fx7YuUxYdAJdW-czCKrhcQg_M2UdII9DRGbgmNgyDOiYXu5DCumVVucuq21TL6hl0QlyHNe63pA\&csui=3) (MEAT). This involves establishing a [control hierarchy](https://www.google.com/search?sca_esv=6bae24b5c791315b\&rlz=1C5CHFA_enSG951SG953\&cs=0\&sxsrf=AE3TifMCEpChK_JZIkoFYJkpIGrSZkZQjQ%3A1756735834585\&q=control+hierarchy\&sa=X\&ved=2ahUKEwiNrvL63rePAxXYzjgGHasBIsoQxccNegQIBRAB\&mstk=AUtExfCTRWqnty-Z9JADhKI885E-pw91vgoSL65OuYRWUq9tKO_vPN7NrQJ6Q7GQoLDbFUIF8a-aVggsfwfRzbt3U2jle_OPWR1KhGy9q-pzBaF3Cdy3HG0fgB10jXZexLH9HoJEGRwdxzvSTUZhkioD2YroQu_8sD8LwfxpP86-MiLGYoJxhvj5ic2_yGUsltSMYwzJIBD_k38O_lQDyH_NcsbIFVP4fRwHL95fx7YuUxYdAJdW-czCKrhcQg_M2UdII9DRGbgmNgyDOiYXu5DCumVVucuq21TL6hl0QlyHNe63pA\&csui=3), defining specific evaluation criteria like quality and cost, assigning importance weights to each, scoring supplier proposals against these criteria, and then calculating a final weighted score to rank suppliers and select the best fit.\
&#x20;1\. Establish the Evaluation Framework

* **Define the Objectives:**&#x43;learly state the goals of the procurement, such as cost savings, quality improvements, or risk reduction.&#x20;
* **Identify Evaluation Criteria:**&#x44;etermine the key factors for assessing suppliers, such as technical capability, price, delivery time, experience, and risk.&#x20;
* **Create a Hierarchy:**&#x46;or complex situations, use an [Analytic Network Process (ANP)](https://www.google.com/search?sca_esv=6bae24b5c791315b\&rlz=1C5CHFA_enSG951SG953\&cs=0\&sxsrf=AE3TifMCEpChK_JZIkoFYJkpIGrSZkZQjQ%3A1756735834585\&q=Analytic+Network+Process+%28ANP%29\&sa=X\&ved=2ahUKEwiNrvL63rePAxXYzjgGHasBIsoQxccNegQIGxAB\&mstk=AUtExfCTRWqnty-Z9JADhKI885E-pw91vgoSL65OuYRWUq9tKO_vPN7NrQJ6Q7GQoLDbFUIF8a-aVggsfwfRzbt3U2jle_OPWR1KhGy9q-pzBaF3Cdy3HG0fgB10jXZexLH9HoJEGRwdxzvSTUZhkioD2YroQu_8sD8LwfxpP86-MiLGYoJxhvj5ic2_yGUsltSMYwzJIBD_k38O_lQDyH_NcsbIFVP4fRwHL95fx7YuUxYdAJdW-czCKrhcQg_M2UdII9DRGbgmNgyDOiYXu5DCumVVucuq21TL6hl0QlyHNe63pA\&csui=3) model to build a control hierarchy for the criteria, showing how they are interrelated.&#x20;

2\. Assign Weights to Criteria

* **Determine Importance:** Rank the evaluation criteria in order of their importance.&#x20;
* **Allocate Weightings:** Assign a percentage to each criterion, with the total percentage for all criteria typically adding up to 100%. For example, technical capability might be 60% and price 40%.&#x20;

3\. Score and Calculate

* **Score Proposals:**&#x52;ate each supplier's response or performance against each specific criterion using a defined scale (e.g., 1 to 5).&#x20;
* **Calculate Raw Scores:**&#x44;etermine the initial score for each supplier based on their ratings for each criterion.&#x20;
* **Calculate Weighted Scores:**&#x4D;ultiply the raw score for each criterion by its assigned weight to get a weighted score for that criterion.&#x20;
* **Sum Weighted Scores:**&#x41;dd up the weighted scores for all criteria to get a total weighted score for each supplier.&#x20;

4\. Rank and Select

* **Compare Total Scores:**&#x54;he supplier with the highest total weighted score is considered the best option and is ranked first.&#x20;
* **Select the Best Value:**&#x54;his method helps ensure a comprehensive evaluation of all relevant factors, leading to the selection of the supplier that offers the best overall value.&#x20;

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{% embed url="<https://www.researchgate.net/figure/Suppliers-Evaluation-using-Weighted-Average-Method_fig2_277977895>" %}

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{% embed url="<https://www.dsta.gov.sg/docs/default-source/dsta-programmes/using-analytic-hierarchy-process-with-operations-analysis-in-project-evaluation.pdf?sfvrsn=2>" %}

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