Goal-Oriented BI
Literature review
Comparison with current algorithms
Table 5 compares the existing GRL evaluation algorithms with the new algorithm proposed in this paper (last column).
Table 5 Comparison between GRL evaluation algorithms
| Criteria | Qualitative | Quantitative | Hybrid | Old formula-based | New formula-based |
|---|---|---|---|---|---|
| Evaluation type | Qualitative | Quantitative | Hybrid | Quantitative | Quantitative |
| KPI evaluation | No | Yes | Yes | Yes | Yes |
| KPI aggregation | No | No | No | No | Yes |
| Situation impact analysis | No | No | No | No | Yes |
Although this new algorithm addresses issues related to KPI aggregation and situation consideration, there is room for improvement and future work. The main disadvantage of the algorithm is that the formula is part of the model for all strategies. This could make model maintenance difficult when different versions of a model with different formulas are required for what-if scenario analysis. This mechanism could be improved if the formulas were defined as part of or in combination with the GRL strategies themselves.