Process 0 is the whole system. Its data stores are inside it, so they are drawn where they are first shared rather than here. Each of the six fund providers supplies fund holdings together with that fund’s expense ratio and 30-Day SEC yield. Click any shape to reach its spec: an external entity opens its field-level composition in the Data Dictionary.
Level 1 will explode process 0 into one process per app, with the data stores each one reads. Until it is drawn, the specs are linked directly here.