The book shows a business organization chart in figure 2.5a (it\'s also in the C

Question

The book shows a business organization chart in figure 2.5a (it's also in the Concepts and Architecture slide set.) Assume this is a fairly large company with more than three people in the Information Technology division. If you were asked to draw a detailed organization chart for IT, it would likely have many more boxes, including managers and employees for each department within IT. What abstraction mechanism is "zooming in" on a particular area called? (One word is enough.)

, then CHAPTER 2 AN INTRODUCTION TO SYSTEM CONCEPTS AND SYSTEMIS ARCHITECTURE esign, ocess, FIGURE 2.5 (a) Business Organization Chart s for Corporate exec. management text Marketing and sales IT Human resources Finance Sales System planning & development Employment Accounting Advertising System administration Organizational development Financial planning Planning User support Contracts Purchasing Order fulfillment Auditing & control

Explanation / Answer

And recursively calling the same approach (zooming in) on the subsequent departments. This idea of division into parts is has-a abstraction mechanism. Meaning, an organization has-a IT department. An IT-department has-a Development department

Business organization chart shown in image can be used in a commercial company (small size) where the departments are divided into small groups but there is no further divisions.

For e.g, There is a whole HR department who is performing all activities of (Leave management, recruitment, payroll etc.)

And while creating network, members of a department are all to be considered at a same level.

However, in big companies, e.g, IT companies where you will be further bifercation in each depatment.

HR might be having indivudal departments for each of activities.

IT might be having Development, Administration etc. and further Development will be having .Net team, Python team, Database team, Testing team...etc

In such cases detailed abstraction will work well.

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