Describe and map/model the main processes in the pre-construction phase of the selected iconic project. Focus on analysing the processes/subprocesses included in diagrams by providing more information.

Task 2:

The relevant IDEF0/UML diagrams should not be in an appendix. Diagrams must be included, analysed, and discussed in the main body of the report.

Use IDEF0 to map the main processes in the pre-construction stage of the selected project (four IDEF0 diagrams: One Context diagram, one Level 1 diagram, and two Level 2 diagrams )Use two UML Activity diagrams to show the flow of tasks/activities within two specific subprocesses selected from your IDEF0 Level 2 diagramsYour contextualised discussion of the main processes/subprocesses should be supported by cited references to relevant theory and literature (e.g. RIBA Plan of Work reports,)

So far, I have completed IDEF0 Level 0 Context Diagram showing Riba stages 1-4 as a diagram. Now, I must draw a level 1 diagram, and I am stuck for one, I do not understand the diagrams fully, and two, I do not know how to draw it.