'Display errors' presentation slideshows

Error Handling and Validation

Error Handling and Validation. Chapter 15. Chapter 15. 1. 2. What Are Errors and Exceptions?. PHP Error Reporting. PHP Error and Exception Handling. 3. 4. Regular Expressions. Where to Perform Validation. 5. 6. Validating User Input. 7. Summary. Chapter 15. 1. 2.

358 views • 35 slides

ITM 352 Debugging

178 views • 17 slides

Introduction

Introduction. There is a tendancy to assume all data in a GIS, both locational and attribute, is accurate. This is never the case. Today we will look at: Terminology to describe data quality; Sources of error in GIS ; and How errors can be modelled. Terminology. Data quality and errors

116 views • 11 slides