Tech support personnel might have to go desk to desk to do fixes, or perform maintenance on e-mail servers that have become clogged with virus-generated messages.

CNN: 'Navidad' computer virus poses moderate risk

It has also meant redefining the business: from offering a vast emporium of maintenance and repair products to providing e-commerce consulting and site maintenance to manufacturers of industrial supplies.

FORBES: Survivor

Details should be provided on how the maintenance visits will be carried out (i.e. number of repeat visits per year, involvement and on-site training of local tide gauge operators, costing etc.).

UNESCO: Request for proposal: Sea Level Stations in the Caribbean Sea | United Nations Educational, Scientific and Cultural Organization