The system in this case is the IDEF0 standard and the model

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For example, the "deliver goods" block. We have text. Not just text and not just graphics, but text and graphics. There is also syntax and semantics, which we will consider separately. Graphics and text are presented in an organized and systematic way. How it is developed (rules) for potential changes. Everything is quite simple here. We can change something in it. For example, we can call the "sell goods" block differently. Or, if this is a manufacturing enterprise, we will need to add a manufacturing block to the model, and remove or combine some other blocks.

The IDEF0 model consists of a hierarchical series of list of kazakhstan whatsapp phone numbers diagrams that sequentially display increasing levels of detail, describing functions and their interfaces in the context of the system. In our model you can see the context diagram and its decompositions. There are three types of diagrams: graphical, text and glossary. With graphical diagrams, everything is clear. Text diagrams contain text. Glossary is text with glossary. Graphic diagrams do not necessarily have to be in the form in which they are presented in our model. There is also FEA, but this is a topic that needs to be considered separately. Graphical diagrams define functions and functional relationships using the syntax and semantics of boxes and arrows.

We have arrows and boxes, and there are relationships between them. There are certain rules according to which they must be built. For example, control always comes from above, and they cannot be depicted from the side, bent, etc. Text diagrams and glossary are information that complements graphic diagrams. That is, they are not mandatory, but they complement. We do not describe the glossary in the model itself, because it would be a picture that cannot be copied. But this is not a mistake. IDEF0 is an engineering technique for performing and managing: needs analysis, benefits analysis, requirements definition, functional analysis, systems design, maintenance, and inputs for continuous improvement.