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

Summary


Since ServiceNow is a very data-oriented platform, GlideRecord plays a critical role. This chapter explored how each field is represented by a GlideElement object and what that means for dates and other areas of interest. GlideAggregate uses the database to perform calculations and so can perform much faster than alternative methods.

Business Rules are the home of scripting in ServiceNow. Since every item in ServiceNow is a database record and Business Rules allow you to alter queries and change the record itself, you get enormous power at your fingertips. We ran through several scenarios, including working with dates, validating data, and ensuring data integrity.

Script Includes are the perfect place to store commonly used code. By defining classes, you can create your own data structures, enabling you to extend ServiceNow in any way you require. The wide variety of Script Includes available out of the box should give you inspiration, but the background of each pattern and how it...