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| Criteria | Description | Scale | Min/max |
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| Cost | Expected cost to accomplish the activity, calculated before the bidding procedure | Monetary | Max |
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| Activity duration | Duration expected on schedule for the accomplishment of the activity | Days | Max |
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| Number of suppliers | Suppliers’ quantity in order to verify easiness to find companies to carry out the activity | Unit | Min |
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| Available resources | Qualitative criteria in order to evaluate the availability of resources in the market (local or surrounding areas) | Qualitative (1 to 5)
(1) No available resources near the CC site, all resources must be taken from another city centre
(2) No availability of materials or equipment near the CC site, but the local labour can be trained for qualification purposes
(3) Qualified labour near the CC site, but materials and equipment must be taken from another city centre
(4) Availability of equipment and materials but labour must be trained
(5) All resources are available | Min |
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| Risk exposition | Proxy criteria in order to evaluate through qualitative criteria the risk exposition analysing technical responsibility and labour permanence in the building site | Qualitative (1 to 5)
(1) No labour permanence is required and subcontractor is not technically responsible for the activity (equipment renting without activity)
(2) No labour permanence is required and subcontractor is not technically responsible for the activity, but some visits are necessary (equipment renting without operator but with maintenance)
(3) Labour permanence is required, but subcontractor is not technically responsible for the activity (equipment renting with activity, steel cutting and bending, etc.)
(4) No labour permanence is required, but subcontractor is technically responsible for the activity (projects and project evaluation)
(5) Labour permanence is required, and subcontractor is technically responsible for the activity | Max |
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| Necessity of maintenance | Qualitative criteria in order to evaluate the necessity of maintenance to attain the activity | Qualitative (1 to 4)
(1) Maintenance is not necessary
(2) Only corrective maintenance is necessary
(3) Only preventive maintenance is necessary
(4) Preventive and corrective maintenance are necessary | Max |
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| Interaction with other activities | Qualitative criteria in order to evaluate the interaction with other activities to take into account security risks and extension of other activities’ duration | Qualitative (1 to 5)
(1) Activity does not occur in building site
(2) Activity occurs in the building site but without interaction with other activities or teams
(3) Activity is carried out inside the building site and in contact with other outsourcers’ teams and contractor’s teams, but without interaction with the activities
(4) Activity is carried out inside the building site, without contact with other outsourcers’ teams and contractor’s teams, but with interaction with the activities
(5) Activity is carried out inside the building site and in contact with other outsourcers’ teams and contractor’s teams and interacts with the activities | Max |
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