Beginner: How to deal with complex domain model? How to interact on modular domain model with CQRS?

[Screaming Dev]

Hello,

I just try things with CQRS but now it is getting more serious and I want to have it proper and clean. But I can't handle the DomainModel and CQRS:

This is the DomainModel for the "incoming editable" data:

• Person
• getName
• getDescription
• getCars
• Cars (maybe ValueObject)
• Bodywork
• Engine
• Seats
• Wheels

Simple as that. But there is more in the domain. Some Documents that is generated out of that data (only the classes are listed here):

• Documents
• SimpleOffer
• Advantages
• Cost
• Terms
• FleetOffer
• Cost
• Terms
• DetailledOffer
• Advantages
• Cost
• Packages
• Color
• Engine
• Inside
• Financing
• Terms

There are some more documents and they divide from the above a bit. Each section will have a topic and text.

QUESTION: Do I create a class for each document and all it's segment?

In DDD/CQRS terms this should be done I guess. But instead I could have some abstract document and sections to model everything. This is quick but dirty I guess. Could you give me a hint how and what should be done here?

Furthermore the CQRS part will be that one data set comes in (first part) and it generates one of the documents (second part, e.g. DetailledOffer).

[Johanna Belanger]

It depends. =)

It's not that one of those models is better than the other, it's that you need a model that serves your situation well.

From the information here, it's hard to tell much about your situation. You've described the structure of the data, but not much about things that happen. 

For a start, are there a lot of business calculations that transform the Person and Car data into Offers? Or are the Offers static documents that need to have the Person and Car data inserted?

[bklo...@gmail.com]

Start with the behavior  which you have not mentioned.  Then look at structures to support that.

Sent from my Windows Phone

---

From: Screaming Dev
Sent: ‎25/‎08/‎2016 10:32 PM
To: DDD/CQRS
Subject: [DDD/CQRS] Beginner: How to deal with complex domain model? How tointeract on modular domain model with CQRS?

--
You received this message because you are subscribed to the Google Groups "DDD/CQRS" group.
To unsubscribe from this group and stop receiving emails from it, send an email to dddcqrs+u...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.