Question

1) In a powerpoint presentation-- Please select and investigate DFD example and Characterize it completely in terms of process, data, business functionality.
2) Use Data flow diagrams (diagrammatic representations) to illustrate and show the tasks that were used to complete it in the PADIM cycle,
3)Prepare a gant and network chart to characterize the tasks needed to assemble

Answer 1

1. The DFD notation, as can be shown, consists of only four key symbols:

• Processes — the system's operations that use and convert knowledge. In the above case, processes are noted as rectangles with three parts, such as "Order Supplies" and "Make Payments."
• Data-flows — the input and distribution of data from those operations. Data-flows are noted as arrows called in the above case, such as "Delivery" and "Supply Order."
• External bodies — the channels from which information comes through the network, and the information recipients that exit the network. External individuals are noted as ovals as in the case above, such as "Supplier."
• Datastores — where data is stored within the device. In the example above, data stores are noted as rectangles with two parts, such as "Supplier Information" and "Orders."
• The drawings are accompanied by supporting documents including a data dictionary, describing data flow and data storage contents, and process definitions that provide detailed explanations of the procedures identified in the data flow diagram.

2. Technology Implementation Life Cycle-A phase in which data administrators, software developers, designers, and end-users build information systems.

SDLC's foundation (analysis-design-implementation) is based on the traditional problem-solving methodology. First, you have to find out or describe what the problem is (analysis), then you have to come up with a reasonable solution to addressing it (design), and then you have to go ahead and do something (implementation). The number of individual steps varies according to which texts and documents you consult. The above measures are one example that addresses most of SDLC's concerns.

The SDLC comes in two basic flavors. The waterfall or linear method means you're doing every move in a series. That is how they built much older programs. The major drawback is that it suggests you can do all the research and get it correct without having to do any construction or execution. It really isn't practical on dynamic networks. The fountain or iterative method means you must do some research, then some architecture, and then some execution. You repeat back (loop) on the basis of what you know, and do more analyzes, etc. This helps a lot of human understanding. It's the strategy that we are proposing now for most programs.

3.

Gant chart:

Network Chart

Gant chart and network chart.