We combine this concept with an approach (at least temporarily, during development) whereby each module or package of modules saves intermediate data in QVD format
(QVD is a Qlik™ format that is extremely efficient in terms of occupied space but also in terms of processing speed, providing a factor of 10x improvement).

Thus, the results of one module or bundle of modules can be taken over by subsequent modules without requiring data to be reprocessed by previous modules in order to have the data available in memory-resident form.

In addition, the non-volatile QVD format allows quick scanning and/ or additional testing of continuous intermediate data to fully assess the quality of the processing to date and the exact data content created.

Prior to using QQsema, Qlik™ script developers used script pages and/ or QVS modules included in the script, but with a lack of immediate visibility of the enable-disable status of each script part can quite often create confusion.

The Qlik™ interface of QQsema allows, on the one hand, the immediate visualization of the whole set of states and, on the other hand, the immediate switching on/ off of each module or package of modules, thus avoiding excessive processing of irrelevant parts of the algorithm at the time.

The QQsema concept is extremely useful especially for complex data processing in Qlik™, when the whole processing takes a long time and retesting the impact of a change can become too time-consuming, leading to inefficient consumption of the developer’s time. But, the benefits can also become relevant in fast but multi-structured and frequent processing (e.g. Qsaft™) where, although the complete processing may only take a few minutes, but the number of tests and reloads is relatively large, the time savings can become significant percentages of the total tuning and testing time.