The results indicate that: (1) the proposed GOREA has a positive influence on the system implementation according to e-health business expectations and (2) it can successfully fulfil the need of e-health business in order to save the citizens life by checking them against COVID-19 virus. A case study based on the basic operations and services in hospital emergency unit for checking patient against COVID-19 virus and taking its diagnostic testing has been set and used to examine the validity of the proposed approach by achieving the conformance of the developed system to the business goals. It consists of four main steps that deals with business goals of e-health system: (1) modelling e-health business process (BP) step (2) modelling e-health business goals step (3) analyzing e-health business goals step and (4) eliciting e-health system requirements step. The modelling e-health IT and systems requirements phase illustrates the process of obtaining requirements of e-health system from the organizational goals that are determined in the previous phase. The modelling e-health business requirements phase is divided into two main stages: (1) model e-health business strategy stage and (2) model e-health business environment stage. It consists of two major phases: (1) modelling e-health business requirements phase and (2) modelling e-health Information Technology (IT) and systems requirements phase. It is an elicitation approach that uses, specifically, healthcare business goals to derive the requirements of e-health system to be developed. Thus, this paper aims to introduce the Goal-Oriented Requirements Extraction Approach (GOREA). In order to ensure the success delivery of e-health services to stakeholders, all characteristics of e-health systems and applications must be understood in terms of technological perspectives as well as the all system requirements. Many e-health projects and innovations are not established based on robust system requirements engineering phase. Thus, the manufacturing and companies' process time, cost and performance can be enhanced and improved their revenue. Our proposed literature review can help in enhancing manufacturing practice as it provides a right picture for the business analysts and modellers regarding what are the most satiable techniques for their cases and requirement. In this paper, we have categorised the existing graphical business PM techniques and tools into two groups: graphical standard at enterprise level and at process level, and have provided a comprehensive analysis on the existing graphical business PM techniques and tools. Categorising the different graphical business PM techniques, tools and standards into different groups with the same functions and characteristics can make logical sense of them. Thus, the modellers should know the purpose of their model in order to select the right techniques and tools. However, choosing the right tools and techniques with which to model BPs is very complicated as there are not as many guidelines to describe the concepts involved.
Literature shows that there are many graphical business process modelling (PM) tools, techniques and standards.
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