Development of methods for the analysis of functional requirements to an information system for consistency and illogicality

Improvement of the method of scenario analysis of functional requirements to an information system

“…Stage 4. Identification of contradictory requirements by fulfilling the method, described in [15], for analysis of individual frames of representations of requirements for consistency.…”

“…To verify the improved method of scenario analysis, it was decided to use an example, described in [15,19], of designing a functional module of safety at work (FM SW). The User of IT services put forward the following requirements to a given module: a) "to implement the function to register information on the enterprise and the processes (operations) executed at a given enterprise, which, during their execution, might negatively affect the employees at the enterprise through a set of harmful industrial factors (HIF)" (first functional requirement); b) "to implement the function to register personnel data (data on employees at the enterprise), minimally required for making management decisions to ensure safety at work at the enterprise" (second functional requirement); c) "to implement the function of compiling and keeping a HIF handbook that act or can act during the execution of individual processes or operations at the enterprise" (third functional requirement); d) "to implement the function of integrating the results of observations of the effect of each HIF during the execution of processes or individual operations at the enterprise" (fourth functional requirement); e) "to implement a function to forecast the impact exerted by a set of HIF on the body of an employee performing a separate process or operation at the enterprise" (fifth functional requirement).…”

“…Article [14] addresses the issue of converting the publications on requirements by rightsholders in an executable system model using behavior models by applying the Activity and State diagrams of UML. Solving the tasks on analyzing the requirements to IS, the description of which employed the UML class diagrams, was considered by one of the authors of the current article in [15]. However, the issues on the improvement of models and methods for the analysis of scenarios for meeting requirements in the form of the Use Case diagrams without reference to the particular characteristics of subject areas, have remained almost unexplored.…”

“…Scenario for fulfilling the fourth functional requirement Scenario for fulfilling the fifth functional requirement When executing Stage 4, one identifies conflicting requirements. An example of a given type of analysis for individual frames is discussed in detail in[15].While executing Stage 5, the first to run is Step 5.1. Consider the features of performing this step in detail.When executing Stage 1 in the improved method of synthesis of variants of architecture descriptions for a created IS, one performs the following activities.…”

Improving the mathematical model of change in the body state of an employee

“…The list of functional requirements for this module was considered in [23]. The results of the analysis of these requirements are given in [24]. The results of the synthesis of a description of this functional module architecture are given in [25].…”