Direct definitions for terms that appear when discussing custom software, platforms, and architecture decisions.
Why shared terminology matters
Ambiguous terminology quickly becomes conflicting scope and unreliable estimates. These definitions create a shared starting point; they do not replace understanding the operating context.
Software system
A connected set of data, rules, permissions, interfaces, and integrations that runs a complete digital operation or capability—not merely one screen or app.
Custom software
Software designed around a specific operation and set of needs when a proven product cannot deliver the required outcome without material compromise.
Software architecture
The decisions that define system boundaries, component responsibilities, data flow, integrations, operations, and safe change.
Source of truth
The authoritative place used to determine the correct value or status of an important record so teams and tools do not produce conflicting answers.
System integration
Connecting systems through explicit data contracts, synchronization rules, and failure handling instead of manual transfer or duplicate records.
API
A structured contract that lets systems exchange data and perform operations in a way that can be documented, secured, tested, and monitored.
SaaS platform
Software delivered as a service to multiple customers or organizations, requiring clear account, permission, data-isolation, subscription, and operating models.
Legacy modernization
Reducing risk and restoring changeability in an existing system by stabilizing, upgrading, or replacing parts in stages—not necessarily through a complete rewrite.
Discovery
A focused stage for understanding the operation, people, data, constraints, and intended outcome before committing to or estimating delivery scope.
Technical ownership
Clarity about who owns the code, data, accounts, documentation, operating decisions, and future changes after delivery.
The term may be clear; the decision still depends on context
Describe the current operation or system. We will help identify the question that must be answered before delivery.