AWS Architecture Diagrams

The business processes modeling (BPM) flowchart sample "Event-driven process chain (EPC) diagram" was created on the base of illustration from "Methods for the specification and verification of business processes. 19 - Event-driven process chains. Roberto Bruni. 2011".
"An Event-driven Process Chain (EPC) is a
particular type of flow-chart that can be used for configuring an Enterprise Resource Planning (ERP) implementation.
Supported by many tools (e.g. SAP R/ 3).
EPC Markup Language available (EPML)
as interchange format. ...
EPC overview.
Important notation to model the domain aspects of business processes.
Rather informal notation.
EPC focus is on representing domain concepts and processes (not their formal aspects and technical realization).
It can be used to drive the modeling, analysis and redesign of business process." [cli.di.unipi.it/ ~rbruni/ MPB-12/ 19-EPC.pdf]
The event-driven process chain (EPC) diagram example was drawn using the ConceptDraw PRO diagramming and vector drawing software extended with the Event-driven Process Chain Diagrams solution from the Business Processes area of ConceptDraw Solution Park.

The vector stencils library "Workflow diagrams" contains 54 symbol icons of workflow diagrams.
Use these clipart to represent information flow, automation of business processes, business process re-engineering, accounting, management, and human resources tasks in industry, business, and manufacturing.
"The term workflow is more commonly used in particular industries, such as printing and professional domains, where it may have particular specialized meanings.
(1) Processes: A process is a more general notion than workflow and can apply to physical or biological processes, for instance; whereas a workflow is typically a process or collection of processes described in the context of work, such as all processes occurring in a machine shop.
(2) Planning and scheduling: A plan is a description of the logically necessary, partially ordered set of activities required to accomplish a specific goal given certain starting conditions. A plan, when augmented with a schedule and resource allocation calculations, completely defines a particular instance of systematic processing in pursuit of a goal. A workflow may be viewed as an (often optimal or near-optimal) realization of the mechanisms required to execute the same plan repeatedly.
(3) Flow control is a control concept applied to workflows, to distinguish from static control of buffers of material or orders, to mean a more dynamic control of flow speed and flow volumes in motion and in process. Such orientation to dynamic aspects is the basic foundation to prepare for more advanced job shop controls, such as just-in-time or just-in-sequence.
(4) In-transit visibility is a monitoring concept that applies to transported material as well as to work in process or work in progress, i.e., workflows." [Workflow. Wikipedia]
The example "Workflow diagram - Business" was drawn using the ConceptDraw PRO diagramming and vector drawing software extended with the Workflow Diagrams solution from the Business Processes area of ConceptDraw Solution Park.

This purchase order processing UML activity diagram was created on the base of activity diagram from the software architecture documentation wiki of the Software Engineering Institute (SEI) of Carnegie Mellon University (CMU).
[wiki.sei.cmu.edu/ sad/ index.php/ Image:PurchaseOrderActivityDiagram.png]
"A purchase order (PO) is a commercial document and first official offer issued by a buyer to a seller, indicating types, quantities, and agreed prices for products or services. Acceptance of a purchase order by a seller forms a contract between the buyer and seller, so no contract exists until the purchase order is accepted. It is used to control the purchasing of products and services from external suppliers.
Creating a purchase order is typically the first step of the purchase to pay process in an ERP system." [Purchase order. Wikipedia]
This purchase order processing UML activity diagram example was created using the ConceptDraw PRO diagramming and vector drawing software extended with the ATM UML Diagrams solution from the Software Development area of ConceptDraw Solution Park.