In analyzing and modeling supply chains, it is crucial to have a common understanding of the structures and processes. However, many textbooks, introductory articles and presentations begin with a sample diagram or symbol representation of a firm, linking to one or more symbols in either direction, representing customers and suppliers. This holds out two enticing possibilities:
1) That real life networks might be formally mapped, and
2) That such a graph will enable the understanding of the system.
Lillienfeld (1978) even argues that all system thinking is built on the idea of diagrams purporting to show relationships between entities. However, there is no consistent way of representing supply chains. The examples are usually either simplified or figurative rather than specific.
In our projects and daily work we fully appreciate the powerful advantage of mapping a process – a supply chain – unraveling it by distinguishing the actors, activities, services and resources. So, consider this to be a first small step towards this common vocabulary.
This symbol denotes a warehouse or distribution center and in addition functions as a cross-dock location.
In some cases we also depict several locations with a single symbol (for example multiple suppliers). The number of locations is indicated by the bracketed number on the lower-right hand side.
This symbol denotes a supplier location of spare parts. In addition, the index denotes the number of suppliers (in this case their are two).
Download the overview below or email us and we send you our little notebook which includes the symbols and some examples.