9 votesAnonymous supported this idea ·Anonymous commented
There are two kinds of industries one is Product and other one is service. Product selling through portal is quite common.
Product includes the properties of Shape, size, quantity and words like sale.
Service includes a consultation ( may be like doctor, engineer, plumber, driver etc. ) who can sell the services through the portal. which should include the properties like Time, consultation charges, service warranties ( all these service includes human intervention )