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Accounting Information Systems

11th Edition
Ulric J. Gelinas + 3 others
ISBN: 9781337552127

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BuyFindarrow_forward

Accounting Information Systems

11th Edition
Ulric J. Gelinas + 3 others
ISBN: 9781337552127
Textbook Problem

Technology Summary 5.2 (pp. 159–160) uses examples of employee ID codes to illustrate five data coding types. Refer to those examples. Create student ID codes that illustrate each of the five coding schemes. Discuss the strengths and weaknesses of each example.

Summary Introduction

To determine: Five most common ways to classify and code the data and discuss the strength and weakness of each example.

Explanation

Five most common ways to classify and code the data:

  • Sequential coding:
    • In this method, numbers are assigned to the items in a chronological order.
    • The new items are added only at the end of the sequence, thus providing limited flexibility.
    • This code describes nothing about the attributes of data.
  • Block coding:
    • In this method, numbers are assigned to the items based on certain characteristics of the data and within the different blocks, the numbers are signed sequentially.
    • This code is an improved version of sequential coding.
  • Significant digit coding:
    • In this method, the items are assigned with the numbers according to the meaning of the characteristics of the data that the particular number bears.
    • This coding is referred as very detailed method of coding.
  • Hierarchical coding:
    • In this method, the procedure of assigning the numbers is similar to that of significant digit coding method but the only difference is that the numbers are assigned in a descending manner.
    • Because of this pattern, each successive rank is the subset of the rank before it.
  • Mnemonic coding:
    • In this method, the assignment of letters is in a way that is understandable by the human users.

Implementing the coding methods on the student numbers:

  • Sequential coding:
    • In this case, the coding starts by assigning 1 to the first student and adding 1 to each student number thereafter until all the students are coded.
    • Strength: it is simple to use and the student who has been studying in the school the longest duration will have the lowest number.
    • Weakness: it has limited flexibility and allows the addition of the new items at the end of the sequence and that the code does not tell anything about the attributes of the data.
  • Block coding:
    • In this case, initially the students are classified based on certain characteristics within a predetermined block of data...

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