The discussion centers on methods for testing adhesive strength, specifically comparing the strength of sellotape and masking tape. One suggested method is using shear lap joints, which are commonly used to assess the shear behavior of adhesives and joint strength. However, this method introduces complexity due to shear forces. An alternative proposed is a "plain" tensile test, which involves creating a load frame to apply weights, making it a straightforward approach. The importance of ensuring that the testing method aligns with the desired properties to be measured is emphasized, highlighting the need for clarity on what specific information about the adhesive or joint strength is sought.