*5.3.6.3 Operational management level*

*5.3.6.1 Strategic management level*

*5.3.6.2 Tactic management level*

*A set of initial KPI indicators. Source: The authors.*

*Inputs for calculating the primary KPI indicators. Source: The authors.*

**Figure 1.**

**Figure 2.**

**182**

subordinated linguistic sets (see also formula (53).

*Operations Management - Emerging Trend in the Digital Era*

In order to determine, the KPI indicators related to strategic management level, an appropriate data concerned with market research and internal resources needed for providing business. In that case, the business is closely related to the company, which deals with utility glass production, while there are two types of production: (a) manually oriented and (b) machinery oriented production. Further KPI explanations are closely related to manually oriented production, which is considered to be the core business process and the initial KPI indicator KPI (0) is assigned to that process. The KPI (0) indicator has a nature of top linguistic set, which consists of

f g KPImanp 0ð Þ ¼ ½ � Xtotfinmanpassets 0ð Þ¼ 1*;* 000*;* 000 Euros , ½ � Xtotmatmanpassets 0ð Þ¼ 100*;* 000 pp , Xtotmatmanpcosts 0 ½ � ð Þ¼ 50*;* 000 Euros , ½Xtotfinmanpcosts 0ð Þ¼ 200*;* 000 Euros�g

The KPImanp (0) indicator seems to be the initial KPI indicator and creates basis

The main business processes and appropriate BSC perspectives should be inves-

tigated and discussed at tactic management level. Only two perspectives (customer's and internal BP) perspective are within that case study, while adequate

for deriving of primary KPI indicators calculated with respect of actual firm or company internal financial resources and represented by coefficient Coef. A set of initial KPI indicators is shown in **Figure 1**, while a set of the main initial KPI indicator KPImanp (0) is shown in **Figure 2** and its components are determined based on initial KPI indicators (see also **Figure 1**) and coefficient Coef (see also **Figure 2**).

(105)

The subordinated or elementary business processes and their external and metrics should be investigated and discussed at operational management level. In
