Book Image

Low-Code Application Development with Appian

By : Stefan Helzle
Book Image

Low-Code Application Development with Appian

By: Stefan Helzle

Overview of this book

This book is an exhaustive overview of how the Appian Low-Code BPM Suite enables tech-savvy professionals to rapidly automate business processes across their organization, integrating people, software bots, and data. This is crucial as 80% of all software development is expected to be carried out in low code by 2024. This practical guide helps you master business application development with Appian as a beginner low-code developer. You'll learn to automate business processes using Appian low-code, records, processes, and expressions quickly and on an enterprise scale. In a fictional development project, guided by step-by-step explanations of the concepts and practical examples, this book will empower you to transform complex business processes into software. At first, you’ll learn the power of no-code with Appian Quick Apps to solve some of your most crucial business challenges. You’ll then get to grips with the building blocks of an Appian, starting with no-code and advancing to low-code, eventually transforming complex business requirements into a working enterprise-ready application. By the end of this book, you'll be able to deploy Appian Quick Apps in minutes and successfully transform a complex business process into low-code process models, data, and UIs to deploy full-featured, enterprise-ready, process-driven, mobile-enabled apps.
Table of Contents (22 chapters)
1
Section 1: No-Code with Appian Quick Apps
11
Section 3: Implementing Software
17
Section 4: The Code in Appian Low-Code

Dynamic task assignment

When closely looking at the Assign to the following field in the node properties dialog, you will see that you can define the field value using expressions by clicking the small editor icon:

Figure 12.5 – The assignment field and expressions

Figure 12.5 – The assignment field and expressions

Attention

Any value or expression you enter in the editor will always be appended to the list of existing values in that field. This can be confusing and lead to unexpected behavior. Clear the field before opening the editor and make sure that the content of the field matches your expectations.

We will now discuss two examples and then use one of them to extend our invoice validation process.

Assigning tasks using process variables

Appian identifies a user by its login name and a group by its numeric ID. You already do that in the owner field in the IVP Case CDT. To store a group, you would use a field of the integer type.

To assign a task to the owner of a case, you enter...