Business Process Modeling Software for Mac

"An issue tracking system (also ITS, trouble ticket system, support ticket, request management or incident ticket system) is a computer software package that manages and maintains lists of issues, as needed by an organization. Issue tracking systems are commonly used in an organization's customer support call center to create, update, and resolve reported customer issues, or even issues reported by that organization's other employees. An issue tracking system often also contains a knowledge base containing information on each customer, resolutions to common problems, and other such data. An issue tracking system is similar to a "bugtracker", and often, a software company will sell both, and some bugtrackers are capable of being used as an issue tracking system, and vice versa. Consistent use of an issue or bug tracking system is considered one of the "hallmarks of a good software team".
A ticket element, within an issue tracking system, is a running report on a particular problem, its status, and other relevant data. They are commonly created in a help desk or call center environment and almost always have a unique reference number, also known as a case, issue or call log number which is used to allow the user or help staff to quickly locate, add to or communicate the status of the user's issue or request.
These tickets are so called because of their origin as small cards within a traditional wall mounted work planning system when this kind of support started. Operators or staff receiving a call or query from a user would fill out a small card with the user's details and a brief summary of the request and place it into a position (usually the last) in a column of pending slots for an appropriate engineer, so determining the staff member who would deal with the query and the priority of the request." [Issue tracking system. Wikipedia]
The BPMN 2.0 (Business Process Model and Notation) diagram example "Trouble ticket system" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Business Process Diagram solution from the Business Processes area of ConceptDraw Solution Park.

The vector stencils library "Business process BPMN 1.2 (Rapid Draw)" contains 12 symbols of objects, roles swimlanes, and task icons for creating the business process diagrams using the ConceptDraw PRO diagramming and vector drawing software.
"BPMN models consist of simple diagrams constructed from a limited set of graphical elements. For both business users and developers, they simplify understanding business activities' flow and process. BPMN's four basic element categories are:
(1) Flow objects.
Events, activities, gateways.
(2) Connecting objects.
Sequence flow, message flow, association
(3) Swim lanes.
Pool, lane.
(4) Artifacts.
Data object, group, annotation.
These four categories enable creation of simple business process diagrams (BPDs). BPDs also permit making new types of flow object or artifact, to make the diagram more understandable. ...
Task.
A task represents a single unit of work that is not or cannot be broken down to a further level of business process detail without diagramming the steps in a procedure (which is not the purpose of BPMN)." [Business Process Model and Notation. Wikipedia]
The shapes example "Design elements - Business process BPMN 1.2 (Rapid Draw)" is included in the Business Process Diagram solution from the Business Processes area of ConceptDraw Solution Park.