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Low-Code Application Development with Appian

Low-Code Application Development with Appian

By : Helzle
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Low-Code Application Development with Appian

Low-Code Application Development with Appian

5 (5)
By: 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)
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1
Section 1: No-Code with Appian Quick Apps
11
Section 3: Implementing Software
17
Section 4: The Code in Appian Low-Code

Adding validation logic

Data validation in interfaces is important and can go way beyond making a field mandatory. I will show you how to implement the following validations:

  • A selected date must be in the future.
  • An entered number must be in a specific range.

An important aspect is that Appian only executes validations if the field has any value. So, you cannot implement a validation that checks for an empty field. Set the required parameter to true to do that. Validations can then check any entered values. Make the required parameter false to create an optional field that can still have validations.

While I use a simple literal in the examples, it is a good idea to store values such as thresholds or range definitions in constants. This way these values can be reused and use the Update Constant smart service in a process model to let a user modify values stored in constants.

Date validation

Use a simple if() statement to check whether the entered value...

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Low-Code Application Development with Appian
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