Final answer:
A project selection model demonstrates flexibility by adapting to changing circumstances and considering actual project constraints and conditions. It can also align with historical project data to make informed decisions.
Step-by-step explanation:
The quality of flexibility required of a project selection model is demonstrated by its ability to adapt to changing circumstances. This means that the model should be capable of accommodating unforeseen changes and adjusting its criteria and constraints accordingly.
An example of flexibility in a project selection model can be seen in the representation of actual project constraints and conditions. By considering the real-world limitations and factors that may affect the project, the model can provide a more accurate and effective selection process.
Another way a project selection model can demonstrate flexibility is by aligning with historical project data. By analyzing past project data, the model can incorporate lessons learned and make informed decisions based on the outcomes of previous projects.