Book Image

Mastering ServiceNow - Second Edition

Book Image

Mastering ServiceNow - Second Edition

Overview of this book

ServiceNow is a SaaS application that provides workflow form-based applications. It is an ideal platform for creating enterprise-level applications giving requesters and fulfillers improved visibility and access to a process. ServiceNow-based applications often replace email by providing a better way to get work done. The book steps through the main aspects of the ServiceNow platform, from the ground up. It starts by exploring the core architecture of ServiceNow, including building the right data structure. To add business logic and control data, and interactivity to user interaction, you will be shown how to code on both server and the client. You will then learn more about the power of tasks, events and notifications. The book will then focus on using web services and other mechanisms to integrate ServiceNow with other systems. Furthermore, you will learn how to secure applications and data, and understand how ServiceNow performs logging and error reporting. You will then be shown how to package your applications and changes, so they can be installed elsewhere and ways to maintain them easily. If you wish to create an alternative simple interface, then explore ways to make ServiceNow beautiful using Service Portal. By the end of the book, you will know the fundamentals of the ServiceNow platform, helping you be a better ServiceNow System Administrator or developer.
Table of Contents (18 chapters)
Mastering ServiceNow Second Edition
Credits
Notice
About the Author
About the Reviewer
www.PacktPub.com
Preface

Dealing with other performance issues


The hints and tips in this book try to give the best possible experience of a ServiceNow instance to its users: administrators, fulfillers, and requesters alike. Tricks such as using client-side code to check a form before submission can really help the system feel faster.

However, performance issues can occur. An out-of-date browser running on a slow terminal server whose virus-checking tools are checking Client Scripts can quickly frustrate a user. Most of the time, there is no single issue that causes performance problems, but there will be a combination of factors, perhaps including some of these:

  • The transaction log has a GZipped column. Research the circumstances of any user where this is false-this is a red flag! The instance compresses the HTML that is generated before sending it out, but it only does so for browsers that support it. All modern browsers do, but inefficient proxy servers or older browsers don't. These users will typically receive...