VKraft Software Services

Loading

Application Integration Architecture

Our application integration architecture connects your diverse systems through a resilient layer that handles orchestration, transformation, and event-driven data flows.

Architecture Overview · 3 Layers
Application Integration Architecture Overview
Layer 1

Source Systems

Your core systems — ERP, legacy mainframes, SaaS, and databases — emit events and data that need to be synchronized across the enterprise.

Source Systems
Layer 2

Integration Platform

The central hub for orchestration, event streaming via Kafka, and API-led connectivity — applying mapping, routing, and circuit-breaker logic for consistent data delivery.

Integration Platform
Layer 3

Target Systems & Outcomes

Validated data is delivered to order management, warehouse, billing, and analytics systems — all running on cloud-native infrastructure with full observability.

Target Systems & Outcomes

Application integration is about making your systems work as one — connecting ERP, CRM, HCM, finance, SaaS applications, databases, and legacy platforms through a centralized integration layer. Our practice covers the full spectrum of integration patterns: real-time orchestration and workflows, event-driven pub/sub streaming, batch ETL and file processing, and API-led connectivity. The architecture flows from your source systems through a platform that handles data transformation, routing, error handling, and monitoring, delivering processed data and events to target systems like order management, billing, warehousing, compliance, and analytics — all running on cloud-native infrastructure with built-in observability, CI/CD pipelines, and enterprise-grade security.

Our Approach

Our Approach

We start by mapping your source systems — ERP, CRM, HCM, SaaS, databases, legacy, and file-based sources — and the target processes they need to feed, such as order management, billing, notifications, reporting, and partner channels. From there, we design an integration architecture that applies the right pattern for each flow: real-time orchestration for business-critical processes, event streaming via Confluent or messaging for decoupled systems, batch ETL for bulk data loads, and managed file transfer for EDI and partner exchanges.

We build and operate the integration platform using webMethods, Apache Camel, Dell Boomi, WSO2, or open-source frameworks — deployed on-premise, cloud, or hybrid. Every integration is built with reusable connectors and adapters, schema-validated data transformations, circuit breakers and retry logic for resilience, and end-to-end observability through Grafana, ELK, and health-check alerting. The result is an integration layer that scales as you add systems, not one that breaks.

Key Capabilities

System & Data Connectivity

Pre-built connectors and adapters for ERP, CRM, HCM, databases, SaaS applications, and legacy systems.

Orchestration & Workflows

Multi-step process flows and business logic in the integration layer.

Event-Driven Integration

Event streaming and pub/sub for real-time, decoupled systems.

Data Transformation

Schema mapping, format conversion, and validation across systems and data models.

API-Led Connectivity

Layered integration architecture with reusable experience, process, and system APIs.

Batch & File Processing

ETL, bulk data sync, managed file transfer, and scheduled processing for high-volume workloads.

Error Handling & Resilience

Retries, dead-letter handling, circuit breakers, and fault tolerance.

Monitoring & Observability

Health checks, centralized logging, alerting, and end-to-end tracing for integration flows.

How it Works

How it Works Diagram

1. Source Systems Emit Events & Data

Your source systems — ERP (SAP, Oracle, Dynamics), CRM (Salesforce, HubSpot), HCM (Workday, SuccessFactors), finance and billing platforms, SaaS applications, databases, legacy mainframes, and file-based sources — generate events, data changes, and batch files that need to reach other systems. These flow into the integration platform as real-time events, API calls, or scheduled file batches.

2. The Integration Platform Connects & Orchestrates

The central integration platform receives inbound data and applies the right pattern for each flow. Orchestration and workflow engines coordinate multi-step business processes with branching logic and sequencing. Event-driven integrations use pub/sub and streaming (via Confluent or message brokers) for real-time, decoupled processing. Batch and file processing handles ETL, bulk sync, and managed file transfers for high-volume or scheduled workloads.

3. Data is Transformed & Validated

Before data reaches its destination, the platform applies schema mapping, format conversion, and validation — translating between the data models of different systems so each target receives exactly the structure it expects. API-led connectivity layers organize these integrations into reusable experience, process, and system APIs that teams can compose and reuse rather than rebuilding from scratch.

4. Errors are Caught & Handled Automatically

Every integration flow includes built-in resilience: automatic retries for transient failures, circuit breakers to prevent cascading issues, and dead-letter handling for messages that can't be processed. Exceptions are routed, logged, and alerted on — so problems are caught and resolved before they impact downstream systems or business processes.

5. Processed Data Reaches Target Systems

Transformed, validated data is delivered to target systems and processes — order management, warehouse and inventory, payment and billing, notifications, reporting and BI, compliance and audit, analytics and data lake, and partner/B2B channels. Each target system receives data in its expected format, in real-time or on schedule, with full traceability from source to destination.

6. Infrastructure Monitors Everything

The entire platform runs on cloud-native infrastructure — Kubernetes for container orchestration, cloud platforms (AWS, Azure, IBM), message brokers (Confluent, Universal Messaging), and CI/CD pipelines with GitOps. Grafana and ELK Stack provide centralized monitoring, logging, and alerting across all integration flows, with enterprise-grade security (TLS, encryption, RBAC) and disaster recovery built in.

Technology stack

webMethods
Boomi
Informatica
SnapLogic
Workato
Kafka
AWS Lambda
Confluent
WSO2
Open-Source
webMethods
Boomi
Informatica
SnapLogic
Workato
Kafka
AWS Lambda
Confluent
WSO2
Open-Source

Use Case

Scenario: An omni-channel retailer syncs inventory and orders between NetSuite ERP, Shopify storefronts, and 3PL providers.

Outcome: Eliminated manual data entry, reduced shipping errors by 40%, and achieved real-time inventory visibility across all channels.

Frequently Asked Questions

Application integration is about connecting your internal systems — ERP, CRM, HCM, databases, SaaS apps, and legacy platforms — so data flows automatically between them without manual intervention. API management focuses on publishing, securing, and governing APIs for consumers. Integration is the plumbing that moves data between systems; API management is the front door that controls how others access your services. They're complementary — many enterprises need both.

We support the full spectrum: real-time orchestration and workflows for business-critical processes, event streaming and pub/sub (via Kafka, Confluent, or messaging brokers) for decoupled real-time flows, batch ETL for scheduled bulk data loads, managed file transfer for EDI and partner files, and request-reply for synchronous API-based integration. We select the right pattern for each flow based on latency requirements, data volume, and system capabilities.

We work across enterprise and open-source platforms, including webMethods, MuleSoft, Apache Camel, Kafka, Azure Integration Services, Dell Boomi, SAP CPI, and WSO2. We help you evaluate and select based on your existing landscape, team skills, deployment model (cloud, on-premise, or hybrid), and budget — or optimize what you already have in place.

Every integration flow we build includes automatic retries for transient failures, circuit breakers to prevent cascading issues, dead-letter queues for messages that can't be processed, and exception routing to alert teams and trigger remediation workflows. Errors are logged centrally and surfaced through monitoring dashboards so nothing fails silently.

Yes. Legacy and mainframe systems (AS400, COBOL, SOAP-based services) are common in our engagements. We connect them through adapters, file-based interfaces, or protocol mediation — wrapping legacy capabilities behind modern integration flows so they participate in real-time and batch processes alongside your cloud and SaaS applications without requiring changes to the legacy systems themselves.

We deploy every integration on cloud-native infrastructure with Kubernetes orchestration, and build in end-to-end observability from day one. Grafana provides metrics and alerting, ELK Stack handles centralized logging and search, and health checks monitor every flow continuously. CI/CD pipelines automate deployments, and enterprise-grade security (TLS, encryption, RBAC) with disaster recovery and high availability are standard across all environments.

We follow a three-phase approach: first, we map your source and target systems, data flows, dependencies, and gaps. Then we design and build the integration layer — selecting the right patterns, deploying connectors and transformations, and configuring error handling. Finally, we move into operate and scale — establishing observability, alerting, and reusable integration assets so your platform grows as you add new systems without rework.

Absolutely. Many engagements start with a platform already in place that needs better orchestration, error handling, monitoring, or additional connectors. We assess what's working, identify gaps, and layer in improvements — whether that's adding event-driven capabilities to a batch-heavy setup, improving observability, or building reusable integration assets your teams can compose and extend.

We baseline metrics during the assessment phase and track them through the monitoring layer: manual task reduction (targeting 80% fewer), data sync latency (targeting under 30 seconds for real-time flows), error rates, system uptime, and the number of reusable integration assets created. These give both technical and business stakeholders clear visibility into the value delivered.

Start your journey with VKraft

Contact Us