The Size-Time-Cost (STC) Operator heuristic engages a user in reframing a problematic situation. STC operator suggests considering six conditions of situation improvement. A user is expected to think of her/his actions when each of the three parameters (size, time and cost) sequentially reaches two limits: zero and infinity (e.g. What would I do if I had ZERO funding for the improvement?).
Below is a video explanation of the STC heuristics, presented by Professor Iouri Belski. This video takes about 18 minutes.
This teaching resource has been provided by the Fellowship web repository (www.edisons21.com – decommissioned) which has been developed by a team of TRIZ academic experts under the supervision of Professor Iouri Belski from the Royal Melbourne Institute of Technology (RMIT). Materials offered by this repository are intended for usage by university academics and students and are offered under the Creative Commons Licence. Fellowship activities have been supported by the Australian Government Department of Education and Training.
Read more about the usage of the Edisons21 TRIZ Heuristics Repository materials here.
Permission to host these materials on our site has been granted by Professor Iouri Belski.