Appian Records give you the power to access all of your enterprise data in a single location, regardless of where your data lives. With a single point of data management, you can easily build interfaces, reports, and other interactive elements that put important business data at your users' fingertips. But how do you know which data you need to build a useful app that will speed up business processes?
By collecting information from stakeholders to build a data model, you'll gain a deeper understanding of the way the application will be used and the problems it will solve. We recommend investing time in comprehensive data design before you start building other aspects of your application (such as the interfaces users will interact with).
This page explains how to model data using the latest Appian Records features, some of which require that you enable data sync on your record types.
To see the biggest benefits of working with your data in Appian, it is recommended that you enable data sync for your new record types to accelerate your application design. Your application can use any combination of record types regardless of whether they have data sync enabled.
There are several advantages to data modeling that will make your eventual development process simpler. Here are a few reasons why building a data model is a recommended way to start the app-building process.
First, the model should be used as a collaborative communication tool with business stakeholders to confirm your understanding of the application’s data requirements. A complete model shows how the application collects and relates data from a number of sources, so stakeholders can confirm that important business processes are being modeled effectively in Appian. They can also provide input into the interfaces and other end-user-facing elements required to make the application useful.
A well-defined, stakeholder-approved model can then act as a map for the rest of the application. Whether you're building as a solo developer or as part of a team, understanding the data model's representation of the way information is stored and flows through different parts of the application is a critical aspect of app development.
On development teams, the model provides a central and accessible view of the most important part of an application: your business data. When all developers are able to make design decisions based on a shared understanding of the data, development will take less time and be more responsive to changing requirements.
Finally, your model helps ensure that you can answer important business questions using queries against your data and then quickly build reports using the answers. Appian has many features that make queries easy to build and update, and those features work best with a foundation of data that is crafted to show relationships in previously siloed information.
A data model is a representation of all of the information available for your application. The model includes:
A data model should be examined from two perspectives: a conceptual angle and a logical angle. Each provides a different level of detail important to the design and helps you confirm that your plan allows data to move seamlessly through different parts of the application.
The conceptual angle is a high-level view of your data model. In it, you draw the basic connections between the data available in your app. Using a tool of your choice, you can quickly assemble a sketch of your data model. For example, a retail application might have a conceptual model like this:
The sketch above highlights the main data categories for the app, Orders and Customers, and shows some of the supporting data that provides more detail for each. Customers have names and addresses, as well as contact info like phone numbers and email addresses. Noting these attributes early on helps you take a deeper look at the data needed for the app.
The concept can serve as reference for business stakeholders. It will allow them to confirm two things in particular:
Once you have constructed a concept, you can enhance the level of detail with a logical angle of the data model. This more comprehensive explanation shows the specific fields that will be available on each record type and the common fields for establishing relationships between them. It can also note any filtering or security that needs to be applied to keep the data secure.
The structure of the model is an important factor in the design. In the conceptual phase, we noted that customers have addresses. While you could store address data with basic details like their phone number, your customers may want to have orders shipped to their home or office, or they may want to send a gift directly to another person. You can build in this flexibility by separating the address data from the customer and creating a relationship between them (one customer has one or more addresses).
Each core data category plays a major role in the application, and they can impact what interfaces you build and how you give users the ability to work with the data through the data lifecycle—creating, viewing, updating, and deleting data as required for their role. You may want to create a few different sections of the logical model, each centered on a different type of core data, to see the data from the perspective of different users.
For example, Customers may be the most important data for a salesperson, but a support rep will be more concerned with the Orders placed by those customers. You can add the data types for each field, including the common fields relating Customers to their Orders and Addresses.
You can also indicate the user personas that should be able to access Customer data in the application (in this case, salespeople, customer service reps, and warehouse managers).
Once you've built your logical model, create your record types based on your data model. This lets you realize both the conceptual and logical levels and then enhance it with other sync-enabled features.
If you need to build your data sources from scratch, Appian will guide you in creating the fields and relationships for each record type.
On the Data Model page of the record type, you can see and interact with the model.
The relationship diagram shows all of the logical connections you've established between record types, and the suggested relationships can help you find even more ways to intelligently link your data. The Data Structure table gives logical details, including the data types of each field and the common fields used to relate your data.
As you start to build your data model in Appian, consider the following best practices.
Record types with data sync enabled are the best way to work with your data in Appian. You can seamlessly connect to your database tables and work with the data in the ways you need to. With automatic performance tuning and powerful sync-enabled features that allow you to relate, transform, and secure your data, you can build your applications faster.
You may choose not to enable data sync due to data sovereignty restrictions, including privacy concerns for health, financial, or other protected data. Record types without data sync enabled can still take advantage of Appian's flexible platform to bring together data in powerful applications regardless of where that data lives.
Each record type with data sync enabled can sync up to 4 million rows of data from a source. While this is a significant amount of data, very large data sources or growing data sources may require you to adapt your data model so you can access all the data you need.
Depending on your business case, you can easily adapt your data model:
| If… | Then… | For Example |
|---|---|---|
| You only need the most recent data from a large database table. | Enable Keep data available at high volumes on your record type. This sync option will dynamically sync the latest 4 million rows of data. | Your Event History record type captures numerous events a day, and is expected to exceed the synced row limit. You could enable this sync option so Appian can dynamically sync the latest data, so if you do have more than 4 million events, only the latest and most relevant are synced. |
| You only need a portion of the data from a large data source. | Configure source filters on your record type to choose which data to sync in Appian. | You have a database table with 5 million rows of support cases, and you need to track the progress of all open cases. You could create a record type called Open Cases and configure source filters to only sync records that have a status of Open or In Progress. |
Lookup data represents a list of static values. These values don't change very often, and they can be shared across multiple record types. To easily maintain static data, and avoid duplicating data, you should create separate record types for lookup data.
For example, in an application, you may have a Customer record type and an Employee record type. In both record types, you need to reference the state a person lives in. To avoid adding a state field on each record type that could potentially store the information differently (using state acronyms versus using the full state names), you could create a State record type. Then, using record type relationships, you can relate the State record type to both the Customer and Employee record types so they can easily reference a person's home state.
Keeping track of who takes action on your data and when allows you to have a more complete picture of how your business operates and see if there are ways to improve it. That's why we recommend configuring record events on each record type that represents a major business concept, like Orders, Customers, or Support Cases.
Before you configure record events, consider the different types of business events you want to capture. For example, let's say you have a Support Case record type. You may want to know whenever a support case is:
Each of the these actions is a type of event that can occur in a support case process. You want to be as granular as possible to ensure you get a complete picture of your business operations.
To learn more about tracking business events, see Configure Record Events.
As you configure your record fields and relationships, ensure that your field names and relationship names can be easily understood by other developers and end users. These names will appear in records-powered components and in end-user workspaces.
Use camel casing to format your field names and relationship names. For example, a field for last names should be formatted as lastName. Appian will automatically convert camel cased fields and relationship names to title case in end-user workspaces, so they're easy for end-users to read. You should also avoid adding application prefixes to your relationship names since these names will also appear to end users. For example, if you have a relationship name like nacCustomer, you should update it to customer.
Learn more about preparing data for end users.
Enterprise data often includes information that must be protected for business, privacy, or regulatory reasons. For example, you may want to restrict customer information to the salesperson working with a client, or you may need to allow only managers and executives to view company financial data.
As you construct your data model, identify the information that requires protection and the users or groups that are allowed to access it. When you build the record type that includes sensitive data, you can then configure security controls to ensure protected record data can only be viewed by certain users or groups.
To learn more about the security features available for record types with data sync enabled, see Record-Level Security.
To help you follow Appian's recommended process for designing your data model, use the following checklist to ensure you've met the baseline requirements:
username or group to the Appian data types User or Group.Now that you've reviewed the best practices and recommendations, let's look at a sample data model that leverages a large dataset, multiple record types, and numerous sync-enabled features.
We've been tasked with combining information from multiple sources to construct a retail store management app. This app will be used by employees in a few different roles (sales, customer service, and managers), and each role has its own functional and reporting requirements for the app. Let's examine these roles and look at what the data model needs to include for each.
The sales team needs to track each sale made by individual team members (represented as Employees). They also want to see which products are most popular and who the most active customers are in a given time period. A salesperson needs the following information:
The customer service team must track each support request through their established workflow and they want to discover what products are returned or exchanged and at what rate. The data needs of a user in this role are similar to the sales role, but instead of employee data, they need to access the support cases for orders.
The store's management team wants to know which salesperson has the most sales in a given time period and how many requests each customer service representative resolves each week. The management team is not responsible for product inventory or customer relationships, so their data needs are simpler than the other roles.
To cover the major business concepts, the retail application could be built using five record types with data sync enabled. This allows us to create relationships between our record types so we can quickly build interfaces and reports for each persona.
Some data is also stored in separate reference record types. This allows data like the list of employee roles or support case resolutions to change as needed.
salesperson and support agent).refunded and exchanged).
To begin implementing your own data model, start by creating a record type. Once you create the design object, learn how to configure the new record type by:
For a guided experience creating and configuring a record type, see the Appian Database-Backed Record Type Tutorial.
