1967 - Start Up
![](https://ionqualitysystems.com/wp-content/uploads/2018/07/timeline-01.png)
John Doe developed the Cosine Selling System® methodology and created the concept of ‘reinforcement training’ to support
1980 - Stage 01
![](https://ionqualitysystems.com/wp-content/uploads/2018/07/timeline-02.png)
John Doe developed the Cosine Selling System® methodology and created the concept of ‘reinforcement training’ to support
1990 - Stage 02
![](https://ionqualitysystems.com/wp-content/uploads/2018/07/timeline-03.png)
John Doe developed the Cosine Selling System® methodology and created the concept of ‘reinforcement training’ to support
2010 - Stage 03
![](https://ionqualitysystems.com/wp-content/uploads/2018/07/timeline-04.png)
John Doe developed the Cosine Selling System® methodology and created the concept of ‘reinforcement training’ to support
2010 - 2018
![](https://ionqualitysystems.com/wp-content/uploads/2018/07/timeline-05.png)
John Doe developed the Cosine Selling System® methodology and created the concept of ‘reinforcement training’ to support