Enterprise Systems Development

Integration approach depends on what the existing system exposes. If your accounting platform (QuickBooks, Sage, or a local ERP) has a published REST API, we build against it directly with proper OAuth2 authentication and rate-limit handling. If there is no API, we use direct database connectors with read replicas to avoid performance impact on the production database. For legacy systems with only file-based export capability, we build an automated ETL pipeline that polls, transforms, and imports on a scheduled interval. We document every integration in the Technical Architecture Document and version the API contract so future changes do not silently break data flow.

Security is addressed at the schema level, not bolted on after development. Every system we build includes role-based access control (RBAC) with permissions defined per module and per action, not just read/write at the table level. Sensitive fields (salary figures, personal identification numbers, financial account details) are encrypted at rest using AES-256. Every write operation generates an immutable audit log entry recording the user ID, timestamp, previous value, and new value. Authentication uses JWT with short expiry and refresh token rotation. For clients with compliance requirements (GDPR, PDPA, or sector-specific regulations), we configure data retention policies and right-to-erasure workflows during the architecture phase.

A focused system covering three to four modules, for example inventory management, purchase orders, and basic financial reporting, typically reaches a usable production state in ten to fourteen weeks. A full-company ERP covering finance, HR, supply chain, CRM, and BI reporting for an organization of 100 to 500 users runs five to nine months. These timelines assume signed BRD, responsive feedback on sprint reviews, and timely UAT sign-off from department heads. The most common cause of delays in enterprise projects is delayed stakeholder availability during the BRD phase and UAT, not the build itself.

We follow a five-step migration process: data audit and mapping, transformation rule documentation, a full migration dry-run on staging with validation reports, client sign-off on data quality before go-live, and a final production migration with a rollback plan active for 48 hours post-cutover. We never migrate directly from source to production. The dry-run typically surfaces 15 to 30% of records that require manual cleaning or business decisions about legacy anomalies. Catching these before go-live prevents the costly post-launch data corrections that plague projects where migration is treated as an afterthought.

Yes, and we actively recommend it. We structure every enterprise engagement as a modular deployment: the core transactional engine and user management go live first, followed by departmental modules in a sequence agreed during the BRD phase. This means your organization starts seeing return on investment within the first three to four months rather than waiting for a single big-bang go-live. Each module has its own UAT checkpoint and production release. The phased approach also reduces change management risk, since teams adopt the system incrementally rather than switching everything at once, which measurably improves adoption rates.

Yes. We build custom CRM platforms for US companies and international clients, covering sales pipeline management, quoting and proposal workflows, activity tracking, and integrations with email, accounting, and marketing tools. You receive full source code ownership at handover, so there are no per-seat license fees as your sales team grows. US projects are quoted in USD with a fixed-price proposal. For Pakistan-market pricing, we maintain a dedicated CRM development page covering local rates and delivery terms.

Yes. Timeline Digital builds REST API connectors to your existing accounting software (QuickBooks, Xero, Sage), HR platforms, email systems, and any legacy databases that expose a connection. Where a vendor API is unavailable, we use secure database-level integration or scheduled data sync. The integration scope is documented in the Business Requirements Document and tested in a staging environment against real data before go-live.

Yes. Data migration follows a structured four-stage process: schema mapping and field-level transformation rules, a test migration run against a full copy of production data, a parallel operation period where both systems run simultaneously, and a final cutover with the legacy system kept in read-only archive mode for 90 days. Every migrated record is validated against the source before the legacy system is decommissioned. Migration plans are documented and client-approved before execution begins.

Security is designed into the architecture, not added after delivery. Standard controls include role-based access control (RBAC) with department-level and field-level permissions, AES-256 encryption for data at rest and TLS 1.3 in transit, a complete audit log recording every data modification with user, timestamp, and before/after values, and automated dependency scanning in the CI/CD pipeline. For regulated industries, such as healthcare records, financial reporting, and multi-branch retail, we apply additional controls at the architecture review stage.