Here are some of the issues that could be evaluated in a technology:

• Is the process state-of-the art? Where does it differ from the state-of-the-art process?
• Are there any known alternatives and where are they already in use?
• Is there adequate patent protection for the process or are there any patents that might prevent you using it?
• Where can improvements be made? What is the time and cost involved in such improvements and what is their commercial potential?
• Are the estimated conversion rates and yields realistic?
• Is the plant capacity realistic?
• Can potential bottlenecks already be identified?
• Do the energy consumption and raw material figures make sense? What options are there for recovery/recycling?
• Have all waste disposal issues been examined (ex-haust air, waste water, solid residues, etc.)? What are the recovery/recycling options?
• How sensitive is the process to variations in the type and/or quality of raw materials, environmental factors, etc.? 
• How robust is the operating concept?
• What process steps determine the quality of the final products and are the relevant process steps well designed?
• What potential savety hazards are associated with the plant and what safety precautions concepts shoud be applied?
• Have the capital expenditures been estimated correctly?
• Are the manufacturing costs plausible?