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Information Communication Technology ICT
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1.
Question 3: Explain the potential consequences of inadequate validation and verification in a system that processes financial transactions. Provide two specific examples.
Inadequate validation and verification in a financial transaction system can lead to serious consequences, including financial losses, legal issues, and reputational damage. Here are two examples:
- Financial Loss: If transaction amounts are not validated, incorrect or inflated amounts could be processed, resulting in financial loss for the company or its customers. For example, a system failing to check for unusually large transaction amounts could allow fraudulent transactions to go through.
- Legal Issues and Reputational Damage: If customer details are not properly verified, fraudulent accounts could be created, leading to financial crime and legal repercussions. Furthermore, a system that allows inaccurate or incomplete data to be stored can damage the company's reputation and erode customer trust. For instance, failing to verify identity during account creation could lead to identity theft and legal liability.
2.
Question 2: Describe how visual checking and double data entry can be used to reduce data entry errors. Include a table to illustrate the benefits of each method.
Visual Checking: This involves the data entry operator reviewing the data they have entered on the screen to identify obvious errors, such as typos or incorrect formatting. It's a quick and easy method for catching many common errors.
Double Data Entry: This involves two different people independently entering the same data. The entries are then compared, and any discrepancies are investigated and corrected. This is a more thorough method of error detection.
| Method | How it reduces errors |
| Visual Checking | Catches simple typos and formatting errors quickly. |
| Double Data Entry | Identifies errors that might be missed by a single person, leading to higher data accuracy. |
3.
A table in a document is being split across columns and/or pages. Explain the potential problems this can cause for readability and data interpretation. Describe the methods a user can use to prevent tables from being split across columns or pages in a word processing package. Provide specific examples of tools and techniques.
Splitting tables across columns or pages can significantly hinder readability and data interpretation. It makes it difficult to follow the relationships between data and can be confusing for the reader. It also disrupts the visual flow of the document.
To prevent tables from being split:
- Adjust Table Width: Ensure the table is wide enough to fit within a single column. You can adjust the column widths by dragging the column dividers.
- Adjust Page Margins: Reduce the page margins to provide more space for the table. Go to 'Layout' (or 'Page Layout') and adjust the margins.
- Table Properties: Access the 'Table Properties' dialog box (right-click on the table and choose 'Table Properties'). In the 'Row' tab, set the 'Repeat row at top' and 'Repeat row at bottom' options to prevent the table from being split across pages.
- Text Wrapping: In the 'Layout' tab, under 'Text Wrapping', choose 'Tight'. This can help to keep the table within a single column.
- Insert Page Break (Use with Caution): As a last resort, you can insert a page break before or after the table. However, this should be avoided if possible, as it can disrupt the flow of the document.