1. Implementation= the process of implementing something

E.g. Implementation of these proposals could have disastrous financial consequences.

The full implementation of the system will take some time.

2. disastrous adj. = 01 causing a lot of damage or harm

E.g. disastrous for: The consequences of spending cuts would be disastrous for local schools.

02 very unsuccessful

a disastrous dinner party

3. feasibility= the chances that something has of happening or being successful

E.g. feasibility of: an investigation into the feasibility of building a new bridge

a feasibility study: A feasibility study found the site unsuitable for development.