Create a two-level Data Flow Diagram. create the following,

-A top-level Context Diagram, which shows the overallsystem and external entities
interactions

-A level 0 (zero) diagram, which shows how the entities interactwith the main processes
in the system

Problem Description

A landscaping company currently has no software systems orexperience using a software
system, everything is achieved using paper methods currently. Thelandscaping company must
track their customers, including each customers schedule for whentheir landscaping needs
servicing, what services need to be performed each time and need toensure the system takes
care of sending invoices and tracking payments received. Thelandscaping company would also
like to be as efficient as possible, making sure they schedulecustomers who live close to each
other on the same day. This would save gas and time, to not have todrive far between
customers. A daily map of their route would be an excellent benefitto help with efficiently as
well.

The company has 5 employees. One employee does in office work(answering the phone,
handling invoices, billing and payments). The other 4 employeesperform the actual work in
two teams (pairs) to complete the landscaping jobs for theday.

The system required will be internal to the company, meaning thereis no public interface for
customers to interact with.