Improving Processes & Services

Process Tools

Data Handling

Ranking & Rating - Option Selection

This technique helps a group to arrive at a speedy consensus decision as to which of several options (possibly generated by brainstorming) is the best one to opt for. It is, for example, often used to decide where to locate a new office or factory, and is often used to evaluate and select tenders in contracts management.

It is particularly useful for a group which has to prioritise - decide which problems they should decide to tackle first, or which solution to pursue.

Example

A Hotel Quality Steering Group is selecting quality problems to tackle. They have brainstormed about 30 such problems and used voting to refine that to 4. It has chosen its criteria and weighted them giving Customer Satisfaction 100, Visibility of Solution 20, and the rest in between.

Rating and Ranking Chart

It then takes each criteria in turn and scores the problems out of the weighting.

For Customer Satisfaction they decide that solving Queues at Booking Out would contribute most and score it 90 out of 100. Parking for Staff would contribute least and they score it 10 out of 100. Similarly for the rest of the problems and criteria.

The result is that Messages are Lost fulfils the criteria and weightings best and is chosen as the first problem to be tackled.


The general procedure is:

Step 1 - As a group, discuss and agree on the Criteria to be used to guide your selection.

For a new factory, the criteria might include:

For a group selecting projects, the criteria might include some from:

Step 2 - Weight the criteria according to relative importance.
Step 3 - Draw up a matrix as shown in the worked example below
Step 4 - Take each criteria in turn and score each option out of the weighting for that criteria,
Step 5 - Sum the scores for each option.


Brainstorming | Rating & Ranking | Fishbone Analysis | Process Mapping | Pareto Analysis | Mind Mapping | Case Study | Checklists  | Concentration Diagrams | Histograms | Pie Charts | Run Charts | Scatter Diagrams |