BASIC ELEMENTS OF TECHNICAL DRAWING.pptx

ICT CSS 9

1. Prepared by: Erlee June Ann S. Navarra BASIC ELEMENTS OF TECHNICAL DRAWING

2. WHAT IS TECHNICAL DRAWING? typically comprise the following, coordinates, a title block, orthographic views of the part, section views, detail views, and notes to the manufacturer. a sequence of actions, materials or services entering or leaving the process (inputs and outputs), decisions that must be made, people who become involved, time involved at each step, and/or process measurements.

3. Why is that flowchart essential in technical drawing? it provides a breakdown of the essential steps to solving the problem.

4. Other than a flowchart, there are several elements that you can still use to represent your process flows, such as: Schematic diagram Layout Plan Loop diagram Charts Block diagram

5. SCHEMATIC DIAGRAM A schematic diagram is a representation of system elements that are abstract or symbols which are graphical in nature. It removes all the irrelevant information. In the data processing cycle example below, Input/ Output Devices are represented by a rectangle. The rectangles don’t resemble the actual devices but give you information without unnecessary visual clutter. The same logic goes with the flow of the data and how they are being processed, stored, and retrieved from the CPU and computer memory.

6. CHART A chart is a diagram that displays the relationship of at least two variables. It is often used to easily interpret large quantities of data and relationship between their parts.

7. There are four common charts: Histogram -is a graphical representation of the distribution of numerical data.

8. There are four common charts: Bar Chart -is a graphical representation of grouped data

9. There are four common charts: Pie Chart -is a graphical representation of quantifiable data represented by a sectioned circle much like a pie that’s been cut with the slices varying in size.

10. There are four common charts: Line Chart -is a graphical representation of information as a series of data points connected by line segments.

11. BLOCK DIAGRAM A block diagram is a specialized type of flowchart. It represents an encompassing view of major process steps, including the relationships and interfaces.

12. LAYOUT PLANS A layout is a tool to arrange a workplace, like in a plant, organization, or computer laboratory in your school. It shows how the computers should be located and arranged properly according to specifications like the size of the room and number of units to be installed.

13. LOOP DIAGRAM A loop diagram aids you visualizing how items in a system are interrelated. It consists of a set of nodes that represents the item, and edges that each represents a connection between two items.

14. QUESTIONS?

15. THANK YOU!